Basic Math question and answers for July 21, 2023
- Q Based on data from a? college, scores on a certain test arenormally distributed with a mean of 1532 1532 and a standarddeviation of 316 316. LOADING... Click the icon to...
- Q Clinical trials involved treating flu patients with Tamiflu,which is a medicine intended to attack the influenza virus and stopit from causing flu symptoms. Among 724 patients treated withTamiflu, 72 experienced...
- Q For this, problem, please include the excel procedure you usedto arrive at an answer (screenshots, explanation, actual file,etc.).BrokerageOverall Satisfaction with Electronic TradesSatisfaction with Trade PriceSatisfaction with Speed of ExecutionScottrade, Inc.3.53.43.4Charles...
- Q Listed below are annual data for various years. The data areweights? (metric tons) of imported lemons and car crash fatalityrates per? 100,000 population. Construct a? scatterplot, find thevalue of the...
- Q A trucking company would like to compare two different routesfor efficiency. Truckers are randomly assigned to two differentroutes. Twenty truckers following Route A report an average of 49?minutes, with a...
- Q 1. A researcher wanted to estimate the meancontributions made to charitable causes by all major companies. Arandom sample of 18 companies produced by the following data oncontributions (in millions of...
- Q Last rating period, the percentages of viewers watching severalchannels between 11 P.M. and 11:30 P.M. in a major TV market wereas follows: WDUX (News) WWTY (News) WACO (Cheers Reruns) WTJW(News)...
- Q 1. Utilizing the sample size chart, what would be the minimumsample size for the following situations?a. one sampletest ES = .8,*a = .05/2, 1- B = .90b. two sample test (independent) ...
- Q The variance in drug weights is critical in the pharmaceuticalindustry. For a specific drug, with weights measured in grams, asample of 20 units provided a sample variance of s^2 =...
- Q Part 2: Analyzing Study Time per Week You spoke with your instructor and she claimed that the averagenumber of hours that you should study has to be more than 5...
- Q Show all work. Use Minitab as much as you can.Majority of problems from: Montgomery & Runger, 2007Question 1:The following data are the joint temperatures of the O-rings(degrees F) for each...
- Q #37Let x = age in years of a rural Quebec woman at thetime of her first marriage. In the year 1941, the populationvariance of x was approximately ?2 =5.1. Suppose...
- Q a.) Suppose that government data show that 8% of adults arefull?time college students and that 30% of adults are age 55 orolder. Complete the passage describing the relationship between thetwo...
- Q Part 1: Analyzing your College’s School Graduation RateYou recently went through your college website and someinformation there got your attention. There was a claim that yourcollege has a 77% graduation...
- Q At a particular amusement park, most of the live characters haveheight requirements of a minimum of 57 in. and a maximum of 63 in.A survey found that? women's heights are...
- Q 3.5.12 Suppose there are two urns. Urn I contains 100 chips: 30are labelled 1, 40 are labelled 2, and 30 are labelled 3. Urn 2contains 100 chips: 20 are labelled...
- Q Propose a life event or situation and two categorical variablesfor it. Complete a chi-square analysis of this event or situationand these variables, and share your results.Do you agree with your...
- Q Assume that the differences are normally distributed. Completeparts ?(a) through ?(d) below.Observation12345678Open in StatCrunch+Copy to Clipboard+Open in Excel+Upper X Subscript iXi46.746.747.747.745.645.650.250.248.448.450.850.847.847.848.648.6Upper Y Subscript iYi50.150.148.448.447.347.354.554.547.947.950.950.949.649.650.350.3?(a) Determined Subscript i Baseline equals Upper...
- Q Out of 200 people sampled, 156 preferred Candidate A. Based onthis, estimate what proportion of the voting population ( p p )prefers Candidate A. Use a 99% confidence level, and...
- Q Both before and after seeing a movie designed to reduce sexism,five males responded to a symbolic sexism questionnaire. Thisquestionaire measured covert sexist attitudes (moe subtle ones).The symbolic sexism questions were...
- Q According to a survey, 21% of the car owners said that they getthe maintenance service done on their cars according to theschedule recommended by the auto company. Suppose that this...
- Q Steel rods are manufactured with a mean length of 24 centimeter?(cm). Because of variability in the manufacturing? process, thelengths of the rods are approximately normally distributed with astandard deviation of...
- Q For this activity, you will be creating a confidence intervalfor the average number of hours of TV watched. Last semester, myMAT 152 online students asked the question, “How many hours...
- Q Please use the skills you learned in section 9.2 for thisassignment. For this activity, you will be creating a confidenceinterval for the average number of hours of TV watched. Lastsemester,...
- Q Give an example question that would best be studied by a quasiexperimental design. Give a brief description of an exampledesign
- Q According to CDCP, in2010 the average height of adult women/men in the USA was 63.8inches, with the standard deviation of 2.7 inches.Using R and calculatethe following:1. Standardized height(z-score) of a...
- Q Performance of stock screeners. In Exercise 2.44 (p. 71) youlearned that stock screeners are automated tools used by investmentcompanies to help clients select a portfolio of stocks to investin. The...
- Q According to the National Center for Education Statistics, 69%of Texas students are eligible to receive free or reduced-pricelunches. Suppose you randomly choose 285 Texas students. Find theprobability that no more...
- Q Provide an example of how standard deviation is used to measuresports statistics (other than the examples in the book). Feel freeto use an example outside of sports. (econ of sports)
- Q In order to control costs, a company wishes to study the amountof money its sales force spends entertaining clients. The followingis a random sample of six entertainment expenses (dinner costs...
- Q The values of Alabama building contracts (in $ millions) for a12?month period follow: (19 marks total)240 350 230 260 280 320 220 310 240 310 240 230a. Construct a time...
- Q 1)With? two-way ANOVA, the total sum of squares is portioned inthe sum of squares for? _______.2) A? _______ represents the number of data values assigned toeach cell in a? two-way...
- Q Packer Fan Tours is the official tour company for the Green BayPackers of the NFL. One of the events in the package is to sponsora reception the night before a...
- Q Studies have examined changes over time in the annual globaltemperature based on planet-wide recordings. To make temperaturesat different locations comparable, "temperature anomalies" arecomputed locally by comparing the local annual sea...
- Q Please note that for all problems in this course, thestandard cut-off (alpha) for a test of significance will be .05,and you always report the exact power unless SPSS output statesp=.000...
- Q 1. If the standard deviation equals 0, we may concludethat:a. There is no dispersion in the datab. The mean is a good measure of the averagec. The data are homogeneousd....
- Q A local university found it could classify its students into oneof three general categories: morning students (42%), afternoonstudents (33%), and evening students. 37% of the morning students,23% of the afternoon...
- Q The ability to scale up renewable energy and in particular windpower and speed is dependent on the ability to forecast its shortterm availability soman et al (2010( describe different methods...
- Q Exhibit1: We have the followinginformation about number of violent crimes (Y) and the number ofpolice personnel (X) for a certain year for a sample of threemetropolitan areas. We also know the...
- Q An investment advisor claimed that BIT return is 2%. Do youagree? Justify your reasoning using a two-tailed hypothesis testapproach at the significance level of 5% in Excel.DateWeekly Return BIT11/3/133.4191318/3/1385.7169425/3/1339.243921/4/13-18.78918/4/139.6046715/4/1314.0643922/4/13-10.512229/4/13-4.830046/5/134.24453913/5/1313.5617620/5/13-3.2556827/5/13-16.11553/6/134.59968810/6/133.55430317/6/13-10.624224/6/13-12.88741/7/1317.849088/7/13-16.050515/7/13-4.6632122/7/138.64130129/7/1325.552785/8/13-17.045212/8/135.21613919/8/1344.9374626/8/13-14.25512/9/138.632099/9/13-3.2325716/9/13-0.7058523/9/13-1.2950430/9/138.2216197/10/1327.5087314/10/1310.5260421/10/139.16826528/10/1341.77734/11/1365.2560111/11/1378.1366518/11/1322.3118425/11/13-14.74172/12/131.1365029/12/13-23.93816/12/1313.7289223/12/1312.3595530/12/133.89596/1/14-5.859813/1/142.34367320/1/14-7.10127/1/14-8.502783/2/14-12.941210/2/14-1.5716217/2/14-10.759624/2/143.8046123/3/14-0.7706710/3/14-3.3904417/3/14-13.423924/3/14-7.4446431/3/14-8.3567/4/1419.482114/4/14-17.362621/4/147.07036328/4/14-9.192295/5/1412.0394712/5/1426.9641819/5/1416.0407726/5/14-0.360042/6/14-10.43879/6/142.72289816/6/14-3.6231923/6/14-0.5714330/6/144.6793717/7/14-11.272314/7/14-2.1624421/7/1410.8331628/7/143.2781254/8/14-14.945611/8/14-7.1747218/8/14-5.9797425/8/145.365011/9/144.5564428/9/14-24.534615/9/148.41343722/9/14-23.207729/9/1436.302936/10/140.81180413/10/14-7.3257120/10/14-6.6847527/10/145.0202473/11/145.21111610/11/14-3.4205517/11/145.22439824/11/140.9544011/12/14-11.85928/12/143.6753715/12/141.95185622/12/14-18.188829/12/14-3.503315/1/15-17.158412/1/1565.6816919/1/15-39.755726/1/156.9469342/2/154.6222429/2/15-0.1234916/2/159.69088323/2/15-0.989152/3/1515.517739/3/15-13.807716/3/158.62729223/3/15-15.642130/3/1518.523836/4/15-3.932213/4/15-17.808220/4/158.22666427/4/15-8.861034/5/1516.5996411/5/15-5.121318/5/1512.9307225/5/15-11.06061/6/15-2.524338/6/15-2.3806615/6/154.07517522/6/1511.2278129/6/1522.475016/7/15-7.0855313/7/15-2.472420/7/153.24410627/7/15-12.76143/8/15-9.1039710/8/158.64531817/8/15-10.385124/8/159.06991231/8/15-5.339677/9/15-2.276314/9/157.17976421/9/151.20641728/9/15-3.156915/10/159.99440612/10/157.08912619/10/1519.4195126/10/1515.428422/11/15-14.43629/11/151.08099116/11/158.70221623/11/154.28056130/11/1512.001927/12/151.78045914/12/15-5.6844721/12/150.20130128/12/1510.271654/1/16-13.690411/1/163.54332718/1/16-7.2030925/1/16-0.598971/2/167.1138438/2/167.50551115/2/16-0.4806322/2/16-9.6607729/2/16-0.799177/3/167.52083314/3/160.92202221/3/16-0.7034228/3/16-5.148344/4/163.46795211/4/167.17652718/4/16-4.5294425/4/1611.489422/5/16-2.01269/5/16-4.6555716/5/1614.4463523/5/1612.4659530/5/1614.505076/6/1616.6052113/6/16-13.997420/6/16-0.9462827/6/16-2.847024/7/162.69293811/7/16-0.1664818/7/16-7.8722425/7/16-4.282171/8/16-4.750428/8/161.26582315/8/161.31578922/8/165.92207529/8/16-0.196175/9/162.57862312/9/16-5.8431819/9/164.22538426/9/16-0.469843/10/164.71204110/10/160.82201617/10/167.43071924/10/160.08973231/10/160.6556297/11/167.3634514/11/160.24486821/11/162.12369828/11/164.9723155/12/162.88318512/12/1611.7284419/12/1611.7691926/12/16-9.916752/1/17-11.99369/1/1711.6914316/1/171.23773823/1/178.8344130/1/17-0.464486/2/172.56954813/2/1712.9009120/2/178.80679727/2/17-2.435716/3/17-17.393113/3/17-6.2146320/3/1715.2840127/3/179.5017893/4/17-1.4930310/4/175.96128817/4/175.83619524/4/1723.289981/5/1718.136558/5/1710.2417315/5/178.17728822/5/1712.8758329/5/1711.341525/6/17-7.7285812/6/17-2.3837719/6/17-4.5828126/6/172.1763453/7/17-26.511710/7/1741.0956217/7/17-0.3320624/7/1715.0376531/7/1730.971587/8/17-0.3644214/8/176.06255521/8/177.08896628/8/17-11.61344/9/17-13.655711/9/170.70389118/9/1720.3222225/9/175.7856142/10/1722.750649/10/176.74120116/10/173.95025323/10/1720.8730930/10/17-18.2366/11/1734.9362513/11/1715.0038120/11/1722.1678527/11/1741.005064/12/1722.6656211/12/17-27.11718/12/170.5858125/12/1720.006941/1/18-16.71198/1/18-20.445515/1/18-4.6424122/1/18-29.209229/1/181.5343465/2/1828.4677912/2/18-7.7799919/2/1820.0250126/2/18-17.74745/3/18-12.326112/3/183.68474719/3/18-19.958126/3/183.3319362/4/1816.690759/4/186.59722716/4/189.47019423/4/182.00969330/4/18-8.85147/5/18-2.089714/5/18-13.839721/5/184.93313328/5/18-12.47714/6/18-2.6698411/6/18-5.3260318/6/182.86128925/6/185.4726982/7/18-4.446369/7/1816.267416/7/1811.7296323/7/18-13.984530/7/18-8.78726/8/182.30133313/8/182.82553120/8/189.90711927/8/18-12.68493/9/182.91283710/9/180.655617/9/180.23535324/9/181.367781/10/18-5.709318/10/183.08777815/10/180.15690322/10/18-1.2266729/10/18-0.758565/11/18-14.275512/11/18-28.283419/11/182.77947126/11/18-12.02443/12/18-9.6533210/12/1826.0276117/12/18-2.5002824/12/184.22157931/12/18-13.68947/1/191.10428214/1/19-0.4080721/1/19-4.205728/1/198.4087384/2/19-0.9572611/2/192.57298618/2/192.41848625/2/194.0270914/3/191.28367711/3/19-0.1585418/3/192.1461425/3/1926.413321/4/19-0.538348/4/193.08537915/4/19-0.430422/4/199.65747529/4/1922.682346/5/1919.2990513/5/196.16249820/5/19-0.082527/5/19-12.87473/6/1918.003110/6/1920.1493617/6/19-2.5217624/6/197.8252771/7/19-10.45318/7/192.73349415/7/19-7.7444622/7/1916.1342229/7/195.6076185/8/19-9.91204
- Q At a charity event, a player rolls a pair of dice. If the playerroles a pair (same number on each die), the player wins $10. If thetwo are exactly one...
- Q Air pollution control specialists in southern California monitorthe amount of ozone, carbon dioxide, and nitrogen dioxide in theair on an hourly basis. The hourly time series data exhibitseasonality, with the...
- Q I realize similar questions were already asked. These aren't thesame questions or the same data set. please also explain how to dothis in excel.For the Hawkins Company, the monthly percentages...
- Q Math 1635 Statistics Probability (Chapter 4)Worksheet1. If there are 20 marbles marked from 1 to 20 in the bag, whatis the probability to pick a marble from the bag and...
- Q Please use the skills you learned in section 9.2 for thisassignment. For this activity, you will be creating a confidenceinterval for the average number of hours of TV watched. Lastsemester,...
- Q Give an example of an endogenous variable in a multipleregression model. Explain
- Q use any data and answers those questions There are severalstores that or businesses that set these types of goals. Would thistell us an overall average? For example lets just say...
- Q Magic the Gathering is a popular card game. Cards can be landcards, or other cards. We consider a game with twoplayers. Each player has a deck of 40 cards. Each...
- Q A sample of n = 16 individuals is selected from a populationwith µ = 30. After a treatment is administered to the individuals,the sample mean is found to be M...
- Q Find the optimal values of x and y using the graphical solutionmethod: Max x + 5y subject to: x + y ? 5 2x + y ? 8 x +...
- Q A school psychologist believes that more positive mood isassociated with more creativity. Below are the data from a randomsample of 4th graders. What can be concluded with ? =0.05?moodcreativity108965574127761145765428a) What...
- Q Consider the following hypothesis test: H0: ? = 15 Ha: ? ? 15 Asample of 50 provided a sample mean of 14.12. The populationstandard deviation is 4. a. Compute the...
- Q You’re investigating whether Ike not a new eating plan leads toparticipants consuming an amount of calories different from therecommended 2000 calories. This is your data:17801621155520051930184818921652After performing a one sample t...
- Q M12 Q21Professor Gill has taught General Psychology for many years.During the semester, she gives three multiple-choice exams, eachworth 100 points. At the end of the course, Dr. Gill gives acomprehensive...
- Q 1.Why/When would you use a screening design?2. What does an orthogonal design mean?3.T or F: A 2-factor design is said to be balanced if eachfactor is run an unequal number...
- Q Assume that female students’ heights are normally distributedwith a mean given by µ = 64.2 in. and a standard deviation given by? =2.6 in.a) If one female student is randomly...
- Q 5) The lifetime of a certain type of batteries follows anexponential distribution with the mean of 12 hours.a) What is the probability that a battery will last more than14 hours?b)...
- Q Let us continue with analyses of data from the study of MDaviglus et al (N Engl J Med 1997) on the relationship of fishconsumption with death from coronary heart disease...
- Q A survey by KRC Research for U.S. News reported that40% of people plan to spend more on eating out afterthey retire. Suppose a random sample of 20 people are...
- Q 17. Why should you avoid contrasting red and green as colors ona graph for presentations?18. Why would you use a semilogarithmic scale line graph insteadof an arithmetic scale line graph?19....
- Q IRS data indicates that the tax refunds it issued this yearfollow the normal distribution with ? = 1,200 and ? = 200. Based onthis information calculate the following probabilities.Probability of...
- Q For 300 trading? days, the daily closing price of a stock? (in$) is well modeled by a Normal model with mean ?$196.38 andstandard deviation $7.13.According to this ?model, what is...
- Q Two standardized? tests, test A and test? B, use very differentscales. Assume that in one year the distribution of scores on testA can be modeled by N(1000, 75) and scores...
- Q Majesty Video Production Inc. wants the mean length of itsadvertisements to be 26 seconds. Assume the distribution of adlength follows the normal distribution with a population standarddeviation of 2 seconds....
- Q A frequency distribution is shown below. Complete parts? (a)through? (e). The number of dogs per household in a small town.?(a) Use the frequency distribution to construct a probabilitydistribution. ?(b) Find...
- Q Find the mean, mod, median, and standard deviation of thefollowing data. And Based on these results, check whether the valueof 10 is usual? 5, 6, 7, 8, 9,8,7,8_________________________________________________________________________Pre-Employment Drug Screening...
- Q 1.Agile Methods Practice Problems. Complete these problems, showingyour work.1a. At the end of Day 1 of asprint there are 90 story points worth of work remaining, and atthe end of...
- Q A pizza restaurant monitors the size (measured by the diameter)of the 10-inch pizzas that it prepares. Pizza crusts are made fromdoughsthat are prepared and prepackaged in boxes of 15 by...
- Q 2.The weights of four randomly and independently selected bagsof potatoes labeled 20 pounds were found to be 21, 22?, ,20.4, and21.2Assume Normality.a. Using a? two-sided alternative? hypothesis, should you beable...
- Q Compare the mean and standard deviation for the Coin variable(question 2) with those of the mean and standard deviation for thebinomial distribution that was calculated by hand in question 5.Explain...
- Q Logistic regression predicts a 1._____________, 2._____________,3.______________from one or more categorical or continuouspredictor variables.
- Q Let X1, X2,...,Xnbe independent and identically distributedexponential random variables with parameter ? .a) Compute P{max(X1,X2,..., Xn) ? x}and find the pdf of Y = max(X1,X2,..., Xn).b) Compute P{min(X1,X2,..., Xn) ?...
- Q The given data represent the total compensation for 10 randomlyselected CEOs and their? company's stock performance in 2009.Analysis of this data reveals a correlation coefficient ofrequals=negative 0.2324?0.2324.Compensation?(millions of? dollars)StockReturn? (%)26.8126.816.286.2812.6112.6130.3330.3319.0219.0231.6831.6812.8712.8779.2779.2712.5212.52negative...
- Q An appraiser is appraising an office building in Manhattan.Assume that the population of these appraisals is normallydistributed. For commercial appraisals, a comparison analysis and acost analysis is done. A comparison...
- Q Duracell released an advanced long lasting AAA battery, which itclaims can last on average for at least 200 days with the standarddeviation of 16 days in any remote control devices....
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