Basic Math question and answers for August 27, 2023
- Q Open the files for the Course Project and the data set.For each of the five variables, process, organize, present, andsummarize the data. Analyze each variable by itself using graphicaland numerical...
- Q ) The Paralyzed Veterans of America is a philanthropicorganization that relies on contributions. They send free mailinglabels and greeting cards to potential donors on their list and askfor a voluntary...
- Q This problem is based on information taken from The Merck Manual(a reference manual used in most medical and nursing schools).Hypertension is defined as a blood pressure reading over 140 mm...
- Q Crime concerns in China. A 2013 poll found that 24.2% of Chineseadults see crime as a very big problem, and the standard error forthis estimate, which can reasonably be modeled...
- Q Clint Barton is a self-employed consultant who runs hiscompany, Hawkeye Solutions, out of a house that he owns that hedoes not live in. He uses the main floor for his...
- Q t-test data,Calculate the pooled variance for this dataset.Group 1= 9.7, 9.5, 9.2, 8.5, 10.9, 9.8, 8.7, 9.8, 7.9, 9.0,10.5, 8.9, 10.0, 8.9, 6.8, 8.2, 9.3, 10.5, 8.5, 9.4Group 2= 8.1,...
- Q You are given the sample mean and the population standarddeviation. Use this information to construct the​ 90% and​ 95%confidence intervals for the population mean. Interpret the resultsand compare the widths...
- Q . You measure 36 textbooks' weights, and find they have a meanweight of 30 ounces. Assume the population standard deviation is 10ounces. Based on this, construct a 90% confidence interval...
- Q For a sample of eight​ bears, researchers measured the distancesaround the​ bears' chests and weighed the bears. Minitab was usedto find that the value of the linear correlation coefficient isr=0.931...
- Q The number of men and women among professors in Math, Physics,Chemistry, Linguistics, and English departments from a SRS of smallcolleges were counted, and the results are shown in the tablebelow.Dept....
- Q A random sample of 1500 residential telephones in Phoenix foundthat 385 of the numbers were unlisted. A random sample in the sameyear of 1200 telephones in Scottsdale found that 311...
- Q The personnel office at a large electronics firm regularlyschedules job interviews and maintains records of the interviews.From the past records, they have found that the length of a firstinterview is...
- Q Access the hourly wage data on the below Excel Data File (HourlyWage). An economist wants to test if the average hourly wage isless than $28. Assume that the population standard...
- Q Researchers at a food company are interested in how a newketchup made from green tomatoes (and green in color) will compareto their traditional red ketchup. They are worried that the...
- Q Consider a random sample of 200 one-way commute distances (inmiles) from Radcliffe College to a student’s primary place ofresidence. The sample mean is 10.33 miles and the sample standarddeviation is...
- Q A food safety guideline is that the mercury in fish should bebelow 1 part per million​ (ppm). Listed below are the amounts ofmercury​ (ppm) found in tuna sushi sampled at...
- Q All logs are to base eSize is in cubic centimeters, Age is in years, Weight is inpounds, Temperature is in degrees Fahrenheit, Height is in inches,Cost is in dollars, and...
- Q The paint used to make lines on roads must reflect enough lightto be clearly visible at night. Let μ denote the trueaverage reflectometer reading for a new type of paint...
- Q Time spent using​ e-mail per session is normally​ distributed,with mu equals 7 minutes and sigma equals 2 minutes. Assume thatthe time spent per session is normally distributed. Complete parts​(a) through​...
- Q “Larry’s logs†is planning to change the supplier. For completeanalysis he needs to compute the Multifactor Productivity (MFP) foreach supplier. He expects to produce 240 units using old supplier,and 260...
- Q 1)Â Â Â A lawn and garden retailer operates 4stores in the DFW Metroplex. One of its most popular items is alawn tractor. Weekly customer demand is distributedN(10,52) at each store. Each...
- Q a) What is an exponential distribution (include an APA citation)?___________________________b) When would you use an exponential distribution?________________________c) What is a binomial distribution (include an APAcitation)?_______________________d) When would you use a...
- Q The health of thebear population in Yellowstone National Park is monitored byperiodic measurements taken from anesthetized bears. A sample of 38bears has a mean weight of 189.6 lb.At α =...
- Q n a 2008​ survey, people were asked their opinions on astrology​- whether it was very​ scientific, somewhat​ scientific, or not atall scientific. Of 1438 who​ responded, 76 said astrology was...
- Q In 2018 and 2019, Health Canada commissioned two nationalsurveys on the use of cannabis among people aged 20 to 24. Theyfound 175 users out of the 1000 surveyed individuals in...
- Q Suppose 56% of the population has a college degree. If a randomsample of size 503 is selected, what is the probability that theproportion of persons with a college degree will...
- Q You and a friend, along with an eccentric rich probabilist, areobserving a Poisson process whose arrival rate is λ = .5 per hour.The probabilist offers to pay you $100 if...
- Q Suppose data made available through a health system trackershowed health expenditures were $10,348 per person in the UnitedStates. Use $10,348 as the population mean and suppose a surveyresearch firm will...
- Q The results of a​ two-way ANOVA using the accompanying data andhypothesis tests for interaction between Factor A and Factor B andfor each factor are provided below. Using these data and​...
- Q Assume that a researcher is interested in finding out therelationship between standardized test scores and household income.Seven participants have been randomly selected and their ACTComposite score and household income are...
- Q The survival times in days of 72 guinea pigs after they wereinjected with infectious bacteria in a medical experiment isdisplayed in the table.434553565657586667737479808081818182838384888991919292979999100100101102102102103104107108109113114118121123126128137138139144145147156162174178179184191198211214243249329380403511522598To access the complete data set, click the...
- Q The owner of Maumee Ford-Volvo wants to study the relationshipbetween the age of a car and its selling price. Listed below is arandom sample of 12 used cars sold at...
- Q (A) Discuss the probability of landing on heads if you flipped acoin 10 times?(B) What is the probability the coin will land on heads on eachof the 10 coin flips?(C)...
- Q For each of the following statements, list the independent anddependent variables, and give the research hypothesis and the nullhypothesis.An official at the state transportation office thinks thatswitching over from manual...
- Q The health of the bear population in Yellowstone National Parkis monitored by periodic measurements taken from anesthetizedbears. A sample of 38 bears has a mean weight of 188.2 lb.At α...
- Q Analysis Paper on : The impact of family structure on the healthof children: Effects of divorce.
- Q An air conditioning company servicing a certain machine roomguarantees that the temperature in the room stays below 20o C. Dueto malfunctioning of the equipment operating in the machine room,it is...
- Q The Federal Drug Administration wishes to determine whether theclaims that Vitamin C prevents colds has any truth. In a clinicaldrug trial, 30 subjects were randomly assigned to either theVitamin C...
- Q In a town, 36% of the citizens contributed to the Republicans,46% contributed to the Democrats, and 12% contributed to both. Whatpercentage contributed to neither party?A box contains 4 white, 3...
- Q Companies X, Y and Z all manufacture a specific componentrequired to make a touch screen tablet. Of these three companies, Xshipped 1024 components, Y shipped 512 and Z shipped 256....
- Q Sample of Size 510810811011099999595109109Sample of Size 1210810811011099999595109109929211811811111110610699999191101101Sample of Size 301081081101109999959510910992921181181111111061069999919110110197979393103103949496961171179494969610610610710791911061061011011191191051051181181071071071071. What is the median of the sample of size​ 30?2.For each data set recalculate the mean and​ median, assumingthat the...
- Q One of the quirks of the ground is occasional acid fog. Only 150grounders are immune to acid fog out of a total of 3000 grounders.For a random group of 250...
- Q What is the probability that if Paul, Mary, and Susan are in agroup of 7 people randomly seated in 7 chairs, they want to be inconsecutive chairs. What is the...
- Q Independent random samples of professional football andbasketball players gave the following information. Assume that theweight distributions are mound-shaped and symmetric.Weights (in lb) of pro football players:x1; n1 = 21247262254251244276240265257252282256250264270275245275253265271Weights (in...
- Q •Vocabulary list (define)normal distributionGaussian distributionStandard normalZ score (or Z value)•What is the area under a normal distribution?•What is the area under any distribution?
- Q Find the standard deviation for a set of data that has a mean of100 and 95% of the data falls between 70 and 130.** Please show me the procedure, thanks!!!
- Q he file Utility contains the electricity costs, in dollars,during July of a recent year for a random sample of 50 one-bedroomapartments in a large city: SELF TEST 96 171 202...
- Q Fill in the missing values for this ANOVA summary table round totwo decimal places:S.S.d.f.M.S.FBetween2371.4886WithinTOTAL5843.48837S.S.d.f.M.S.FBetween576.453WithinTOTAL2276.4537S.S.d.f.M.S.FBetween107.07Within5160TOTAL5695.3565S.S.d.f.M.S.FBetween7.664Within43010TOTAL50
- Q Consider babies born in the \"normal\" range of 37–43 weeksgestational age. A paper suggests that a normal distribution withmeanμ = 3500 gramsand standard deviationσ = 710 gramsis a reasonable model...
- Q A particular manufacturing design requires a shaft with adiameter of 17.000 ​mm, but shafts with diameters between 16.988 mmand 17.012 mm are acceptable. The manufacturing process yieldsshafts with diameters normally​...
- Q A coin with probability p>0 of turning up heads is tossed 4times. Let X be the number of times heads are tossed.(a) Find the probability function of X in terms...
- Q Use R to generate n = 400 samples (idependent identicallydistributed random numbers) of X ∼ N(0, 4). For each Xi , simulateYi according to Yi = 3 + 2.5Xi +...
- Q Q1: A study of environmental air quality measured suspendparticular matter in air samples at two sites. DATA is listed inthe table. Site 1 22 68 36 32 42 24 28...
- Q After a group of (volunteer) experimental subjects achieved aspecified blood alcohol level from consuming liquor, psychologistsplaced each subject in a room and threatened them with electricshocks. Using special equipment, the...
- Q Suppose the incidence of ketosis in Holstein dairy cows is 11.8%in the state of Michigan (Dyk and Emery, 1996; ProcTri-State Nutrition Conference). Assume the state ofketosis (1 = diseased, 0...
- Q Let’s check in on your tomato plants…again. Say that you haveplanted 240 tomato seeds. You set up an infrared camera and recordtheir germination over 24 hours.Do these data meet the...
- Q 4. A space probe encounters a planet capable of sustaining lifeon average every 3.4 lightyears. (Recall that a lightyear is ameasure of distance, not time.)a) Let L be the number...
- Q The average LSAT score (the standardized test required to applyto law school) in the United States is µ =150 (σ = 10). Also, theLSAT is normally distributed. Use these parameters...
- Q Communicating the correct amount of data to stakeholders isimportant. Discuss specific strategies that can be used to ensurethe right balance in terms of communicating dataset findings tostakeholders. Illustrate your ideas...
- Q Use the sample informationx¯= 40, σ = 7, n = 13 to calculatethe following confidence intervals for μ assuming thesample is from a normal population.(a) 90 percent confidence. (Round youranswers...
- Q Box 1 contains 3 red balls, 5 green balls and 2 white balls. Box2 contains 5 red balls, 3 green balls and 1 white ball. One ball ofunknown color is...
- Q 2. Industrialist H.E. Pennypacker wantsinformation on the customers that patronize his bicycle stores. Hesurveyed 81 randomly-selected individuals who made a purchase athis Pasadena store to find out how much they...
- Q                Age CategoryAMUSEMENT (Ride){0 -5}{6 –17}{18-35}Over 35Bouncing Houses (BH)140100305275Horror Tunnels (HT)301007540245Ruffle (R)060801002401702601851457601. Give the literal formula first (not with numbers) and thensolve:“What is the probability of being in the youngest age...
- Q 1.Which of the following is not a characteristic of a binomialrandom variable?a. n identical trialsb. probability of failure is the same for each trialc. non-correlated outcomes for each triald. non...
- Q The rates of on-time flights for commercial jets arecontinuously tracked by the U.S. Department of Transportation.Recently, Southwest Air had the best reate with 80 % of its flightsarriving on time....
- Q Suppose you are a researcher in a hospital. You areexperimenting with a new tranquilizer. You collect data from arandom sample of 9 patients. The period of effectiveness of thetranquilizer for...
- Q In an article in the Journal of Advertising, Weinbergerand Spotts compare the use of humor in television ads in the UnitedStates and in the United Kingdom. Suppose that independent randomsamples...
- Q Assignment #8: Chi-Square Test of Independence Directions:Use the Crosstabs option in the Descriptives menu to answer thequestions based on the following scenario. (Be sure to selectChi-square from the Statistics submenu...
- Q A consulting firm submitted a bid for a large research project.The firm's management initially felt they had a 50-50 chance ofgetting the project. However, the agency to which the bid...
- Q CITYXYPopulationA3.34.334,000B1.13.46,500C5.51.28,000D3.72.45,000E1.11.11500This is for Geography Stats.I have already found the weighted mean center of population.Which is (3.34,3.48)and the unweighted mean center (2.94,2.48).I need to find the Bachi's Weighted Standard Distance. I...
- Q A poll conducted between February and April of 2006 surveyed2822 Internet users and found that 198 of them had downloaded apodcast to listen to it or view it later at...
- Q Sally’s Toyota Corolla is an old car but it served her well. Sheis planning to take a trip to the Grand Canyon from the east coast.Before starting the trip she...
- Q howcan you determine whether a source is reliable andtrustworthy?
- Q Why is it “harder†to find a significant outcome (all otherthings being equal) when the research hypothesis is being tested atthe .01 rather than the .05 level of significance?
- Q How can Chi Square test for independence be used to evaluatetest re-test reliability?
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