Statistics question and answers for September 05, 2023
- Q The probability that event A will occur is P A 0 32 What is the probability in decimal form that event A will not occur P A What are the...
- Q Find the indicated probability Empirical evidence shows that the normal resting ac normally distributed with a mean of 98 2 degrees Fah deviation of 0 7 degrees Fahrenheit What is...
- Q a the indicated area Find the area of the indicated region under the sta 0 0606 0 0574 0 1 50 2 50
- Q Find the indicated probability The CDC estimates that 75 of children betwe vaccination If 7 children within this age group probability that more than 5 of them have rece 0...
- Q Question 20 1 point Find the indicated probability A battery company has found that the defect Each day 7 batteries are randomly tested Fin to be defective 0 257 035
- Q uestion 27 1 point Identify the data value corresponding to the indic The length of human pregnancies from conception distribution that is approximately normal with a m deviation of 16...
- Q estion 30 1 point terpret the median study of unemployment rates in all 50 s ate of 8 Half of the 50 states had an unemplo The average unemployment rate...
- Q uestion 14 1 point Select the most appropriate response The average percentage of correct responses on th with a standard deviation of 6 What can be said about a particular...
- Q 5 Solve the following LP problem using Dual SA Minimize g x1 x2 x3 5x1 x2 2x3 subject to 2x x3 0 X1 X 1 X2 3x1x x3 3
- Q Based on your answers for the mean and standard deviation found in Question 8 determine the Range Rule of Thumb for the number of people infected with this new disease...
- Q Group A Group B Results of a test administered to two groups of people 245 32 Passed 55 18 Failed Use the made up data about results of a test...
- Q 6 16 Is college four year college degree and are not currently enrolled in school 48 said they decided not to go to college because they could not afford school...
- Q Precipitation cm 400 38 0 16 0 340 32 0 300 280 26 0 240 220 200 18 0 160 14 0 12 0 100 8 0 60 40 2...
- Q A mortgage company shows its rates for 30 year fixed rate mortgages from 197 y Year 1975 1980 1985 1990 1995 2000 2005 2010 r Mortgage rate 9 05 13...
- Q For questions 9 10 use the random numbers given and the information in the question to assign numbers and estimate the probability of making two free throws in a row...
- Q The pmf of the amount of memory X GB in a purchased flash drive is given as the following 2 4 8 16 p x 0 05 0 20 0...
- Q A small market orders copies of a certain magazine for its magazine rack each week Let X demand for the magazine with the following pmf X p x 2 3...
- Q A chemical supply company currently has in stock 100 lb of a certain chemical which it sells to customers in 7 1b batches Let X the number of batches ordered...
- Q A mail order company business has six telephone lines Let X denote the number of lines in use at a specified time Suppose the pmf of X is as given...
- Q Another possibility would be to use a lottery to generate a single priority list and then apply the over and above processing rule Based on the application statistics from the...
- Q Say that a selection rule respects the spirit of affirmative action if making an applicant reserve eligible can NEVER cause them to lose a spot that they otherwise would have...
- Q Many investors and financial analysts believe the Dow Jones Industrial Average DJIA gives a good barometer of the overall stock market On January 31 2006 9 of the 30 stocks...
- Q Next question You can retry this question below 6 18 Is college worth it Part II Exercise 6 16 presents the res who decide to not go to college do...
- Q 6 16 Is college worth it Part I Among a simple random sample of 331 American adults who do not have a four year college degree and are not currently...
- Q You are concerned that nausea may be a side effect of Tamiflu but you cannot just give Tamiflu to patients with the flu and say that nausea is a side...
- Q Past studies have indicated that the percentage of smokers was estimated to be about 34 Given the new smoking cessation programs that have been implemented you now believe that the...
- Q A political candidat assume p 5 If the candidate on
- Q 13 Studies have found that people find symmetrical faces more attractive than faces that are not symmetrical To test this theory a psychiatrist selected a random sam ple of people...
- Q CHOROSCO Number of hits at a baseball tournament 30 25 20 15 10 5 0 1st place 11 2nd 3rd place place Based on the bar graph above which of...
- Q 8 In Problem 1 19 we noted that the Wright brothers in the design of their 1900 and 1901 gliders used aerodynamic data from the Lilienthal table given in Figure...
- Q ed information llowing information applies to the questions dis ompany prepared the following contribution for evant range of production is 500 units to 1 500
- Q 1 Define the term statistically significant in terms of your text s usage 2 Define the term test statistic 3 Define the term p value 4 Is a p value...
- Q 7 Glaxco claims that its new sleeping pill Somatripan has a mean time of entering the bloodstream of less than 10 min What should the null hypothesis be The alternate...
- Q Transcribed image text TABLE B 1 National Football League 1976 Team Performance y 10 11 11 X1 2113 2003 2957 X2 1985 2855 1 737 X3 38 9 38 8...
- Q 8 A surgical team claims that their new procedure has a mean recovery time that is shorter than the existing procedure of 3 days What should the null hypothesis be...
- Q 98 A sample of 16 small bags of the same brand of candies was selected Assume that the population distribution of bag weights is normal The weight of each bag...
- Q 8 What is the statistical symbol for the slope of the regression line For this problem its value is Use a completa sentence to write an interpretation of the slope...
- Q The probability distribution for the number of students in Statistics classes offered at a small college is given but one value is missing Fill in the missing value then answer...
- Q An online streaming service that offers TV shows documentaries and movies charges an initial fee of 20 25 and an additional monthly membership fee of 3 75 The total cost...
- Q 0 11 0 24 0 11 0 16 0 31 0 07 2 4 6 7 9 11 Find the expected value of the above random variable
- Q Porter is visiting India and would like to purchase some local spices He finds some spices that cost 320 38 rupees If the current exchange rate is 1 dollar 73...
- Q Mikaela purchased a paddleboard originally priced at 699 If all merchandise was on sale for 40 off and the state tax rate is 7 25 what is the total amount...
- Q Which of the following expressions is equivalent to 2 x 4 of 8 03 0 4
- Q Quincy has a jewelry business in which he designs and sells bracelets His daily profit Q x can be modeled by the function Q x 8 25x 24 75 where...
- Q An event manager is tracking participation in a tournament by age group The manager created the following histogram Number of People 60 50 40 30 20 10 0 O 10...
- Q Electric circuit boards are rated excellent acceptable or unacceptable Suppose that 30 of boards are excellent 60 are acceptable and 10 are unacceptable Further suppose that 10 of excellent boards...
- Q The median home value in South Carolina and Washington adjusted for inflation are shown below Year South Carolina 1950 2000 31000 94900 Washington 43400 168300 If we assume that the...
- Q The probability distribution for a random variable x is given in the table 10 5 0 5 10 15 20 Probability 20 15 05 1 25 1 15 X
- Q n a test for the difference between two proportions the sample sizes were n 119 and 80 and the numbers of events were x 64 and X 35 test is...
- Q amples come from populations that are approximately normal Let denote the mean weight of boys Can you conclude that the mean weight of boys is les han the mean weight...
- Q nterpret calculator display The following TI 84 Plus calculator display presents the results of a hypothesis test for the difference between two means ample sizes are n 22 and n...
- Q Finding t What critical value t from Table T 3 should be used in constructing a confidence interval for the population mean in each of the following settings Assume the...
- Q Mineral loss during nursing Breast feeding mothers secrete calcium into their milk Some of the calcium may come from their bones so mothers may lose bone mineral Research measured the...
- Q What can be said of the correlation between the brand of an automobile and its quality The correlation is negative because smaller cars tend to have higher quality and larger...
- Q An economist conducted a study of the possible association between weekly income and weekly grocery expenditures The particular interest was whether higher income would cause shoppers to spend more on...
- Q C The following is a scatterplot of the liters of alcohol from drinking wine per person and the death rates from heart disease per 100 000 people for each of...
- Q The data and the graph below show the scores students in an advanced statistics course received for homework Hw completed and for the subseque based on assignments that preceded the...
- Q 5 points Suppose the least squares regression line for a set of data has slope 72 4 Now suppose we remove a point from the data compute the least squares...
- Q According to the 2010 census those states with an above average number of people who fail to complete high school X tend to have an above average number of infant...
- Q A researcher measures the correlation between two variables This correlation tells us whether a scatterplot shows an interesting pattern whether a cause and effect relation exists between two variables the...
- Q The volume of oxygen consumed in liters per minute while a person is at rest and while a person is exercising running on a treadmill were both measured for 50...
- Q A researcher states that bone density in women is negatively associated with age This means that older women aren t any more likely than younger women to have below average...
- Q Step 1 Sketch the star polygon for each set of points containing the number of star point vertices ranging from 3 to 11 and k the count between points connected...
- Q fixed expenses grants car insurance nonsufficient funds cover letter fee schedule bonds portfolio capital gains PIN Personalidentification Number Resume diversification realestate budget surplus benefits bank statement checking account health insurance...
- Q Construct a 95 confidence interval for the difference in means from the two locations O 2 40 9 60 O 4 573 7 427 O 2 539 9 461 O...
- Q http www mathsisfun com data quincunx html Page 3 In the simulator create a quincunx with 8 rows of pegs and with a 50 chance of bouncing left and a...
- Q in 2008 the per capita consumption of soft drinks in Country A was reported to be 18 18 gallons Assume that the per capita consumption of soft drinks in Country...
- Q QUESTION 1 hospital administrator wante cords ear umber of Admissions
- Q ESTION 4 particular relationship N 80 How many point ession line 0 30 4
- Q State Alaska Arkansas Colorado Connecticut Delaware Idaho Indiana lowa Maine Missouri Montana Nebraska New Jersey New York Ohio Exercise Time mins Life Expectancy years 48 0 78 9 30 0...
- Q ESTION 6 regression constant for predicting Y Y
- Q STION 8 near regression analysis to predict the Midt
- Q Perform a linear regrssion analysis on this data Then pred Match each statistic with its value The coefficient of determination The predicted daily rating of a day where 25 people...
- Q QUESTION 2 S Y Y equals 0 1 cannot be determined from information gi who cares QUESTION 3 If the relationship between X and Y is perfect Or by O2...
- Q Noise levels at 6 airports were Construct the 80 confidence Step 1 of 4 Calculate the came
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