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eBook Video Exercise 10.1 (Algorithmic)) Consider the following results for two independent random samples taken from two populations. Sample 1 Sample 2 n 50 n2 35 1-1=13.6 X2= 11.1 a. What is the point estimate of the difference between the two population means? | b. Provide a 90% confidence interval for the difference between the two population means (to 2 decimals). c Provide a 95% confidence interval for the difference between the two population means to 2 decimals
eBook Video Exercise 10.2 (Algorithmic). Consider the following hypothesis test. o The following results are for two independent samples taken from the two populations. oSample 1 Sample 2 n1- 30 n 270 OX1- 25.9x2 22.7 a. What is the value of the test statistic (round to 2 decimals)? b. What is the p-value (round to 4 decimals)? Use z-value rounded to 2 decimal places. O c.With a-.05, what is your hypothesis testing conclusion? O p-value is Select Ho
Consider the following hypothesis test O The following results are for two independent samples taken from two populations. Excel File: data10-03.xls Sample 1 ni = 80 o, = 8.4 Enter negative values as negative numbers a. What is the value of the test statistic? (to 2 decimals) Sample 2 270 106 o,-7.6 3. 4, 5. 6. 0 | 11 = 104 o ο O b. What is the p-value? (to 4 decimals) c.With a -.05, what is your hypothesis testing conclusion? Select your answer 9,
Video indicating better service. A sample of 37 ship Condé Nast Traveler conducts an annual survey in which readers rate their favorite cruise ship. All ships are rated on a 100-point scale, with higher values that carry fewer than 500 passengers resulted in an average rating of 85.38, and sample of 41h。that carry 500 or more passengers provided an average rating of O standard deviation is 4.56 for ships that carry fewer than 500 passengers and 3.98 for ships that carmy 500 or more passengers Round your al answers to two decimal places O What is the point estimate of the dfference between the population mean rating for ships that carry fewer than 500 passengers and the population mean b. At 95% dorndence, what is the margin of error? c what is a 95% conndence interval estimate of the diference between the population mean ratings for the two sizes of Check My Work
Exercise 10.05 Altorithmic Check My Work elook The average expenditure on valentines Day was expected to be $100 89 USA Today Feeruary 13, 2006). Do male and female consumers。mer n the amounts they spend, The average e gendu e ni sample su vey of 58 male喘um es was t 133, and the overage exper ture in a ple survey of 35erna e consume s as 569 Based on parti vers the standard deviation for-ale eur en- assumed to be $35, and the standerd deviation for female consumers is assumed to be $10. The z value is 2.576 Round your answers to 2 decimal places n. What is the point estimate of the difference between the popuiation mean expenditure for males and the population mean expenditure for females? b. At 99% confdence, what is the margin of error? c. Develop a 99% confidence interval for the dfference between the two population means. Check My Work O-lcon Key
Consumer Reports uses survey of reader, to o tain eustomer satin action ratrg·for the nation s Irgest retalles sumerReports, Μ.ch 2012) rach survey meende t Akeaa rate , spe tne respondent completely satisfied in terms of al sis factors. Sanple data representative of independent samples of Target and walmart cutterer are thou-bew Excel File: data10-07.x ed retaler in terms of six factors: qualty of products, selection, value, checkeut omiciency, service, and store layout An overal satisfaction score summarines the rating for each respondent with 100 meaning 10 C Target 25 Walmart 12. 30 1,-71 a. Formulate the null and alternative hypotheses to test whether there is a difference between the population mean customer satisfaction scores the two retalers 0 Mo: μι-at-select your answer . reasonable assumption for both retailers. Conduct the hypotesis b Assume that experience with the Consumer test and report the p-value Round your anwer to four decimal lace p-value - Reports satiofaction rating scale indicates that a population standard deviation of 12sa 20. At a 05 evel of significarce what is your conclusion? The input in the box below will not be graded, but may be reviewed and considered by your instrutor retalers. Which retaler, if other, appears to have the greater ustomer c. Provode a 95% consence inteva, or the orererce bet-een the mation mean customer sestacten son, tr satsfaction
Exerciss 10.2 (Algorithmic) Consider the following results for independent random samples taken from two populations . 9. 10. Sample 1 Sample 2 10 n2 -30 12 X1- 22.8 x2- 20.9 13. C 14. O 15. a. What is the point estimate of the difference between the two population means (to 1 decimal)? 16. O 17 C 18. O 19. C s-2.9 24.8 b. What is the degrees of freedom for the t distribution (round down)? At 95% confidence, what is the margin of error (to 1 decimal)? 20. О d. What isthe 9S% confidence interval fr the difference between the two population means to 1 decimal)?
Consider the following hypothesis test. O The following results are from independent samples taken from two populations. Sample 1 1 35 Xi 13.6 S1 -5.5 Sample 2 2-40 x2 10.1 $2 8.6 O a. What is the value of the test statistic (to 2 decimals)? b. What is the degrees of freedom for the t distribution (to 1 decimal)? c. What is the p-value range? Select d. At a-.05, what is your conclusion? p-value is (Select
eBook Consider the following data for two independent random samples taken from two normal populations Excel File: data10-11.xls Sample1 10 7 13 798 Sample 2 87 846 9 a. Compute the two sample means. (to 0 decimals) O b. Compute the two sample standard deviations. (to 2 decimals) c. What is the point estimate of the difference between the two population means? d, what is the 90% confidence interval estimate of the difference between the two population means? to 2 decimals) (mi , m2)-
The average annual cost (i duding tution, room board, books and fees) to attend p ble eeliege takes nearly 3 third of the annual income of a typical fa h-th colegesge chi re (M ner Apri 2012). Atp ate colleges, the average annual co tisco al to about 60% e, the typical familys income. The following random sampes show the annual cost of attending private and O are in thousands of dollars Click on the webfile logo to reference the data WEB file Private Celleges 528 43.2 45.0 333440 06 45.8 37.8 503 42.0 Public Colleges 3 22.0 28.2 15.6 24.1 285 22.8 25.8 185 256 144 218 Compute the sample mean and sample standard deviation for private and pulblic cotleges. Round your ansmers to two decomal p Si your answer to ene decimal place point estimace of the difflerence between the two population means? Round y Interpret this value in terms of the annual cost of attending private and public colleges c. Develop à 95% confidence interval o/ the diference between the annual cost of attending private and pubic coleges. 95% confidence interval, private coleges have a population mean annual cost □to S more expensive than public colleges
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​​​​​​My dear student you posted multiple questions as per HOMEWORKLIB RULES I have solved the first one.thank you.

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