Express the alternative hypothesis in symbolic form a

This preview shows page 5 - 8 out of 8 pages.

Express the alternative hypothesis in symbolic form.A professor claims that the mean amount of time (in hours) sophomores spent studying for the statistics final exam is morethan that of freshmen. Assume that the two samples are independent. Let the freshmen be the first population and thesophomores be the second population.A.:H11=B.:H11>C.:H11D.:H11<2222
Express the alternative hypothesis in symbolic form.An automobile technician claims that the mean amount of time (in hours) per domestic car repair is more than that offoreign cars. Assume that two samples are independent. Let the domestic car repair times be the first population and theforeign car repair times be the second population.2222
9/26/2020Module 7 Homework: Textbook Chapter 8 and Chapter -joseph gogue19.Assume that you want to test the claim that the paired sample data come from a population for which the mean differenceis0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed andfinal answers to three decimal places as needed.d=SubjectABCDEFBefore168180157132202124190After162178145125171126180GHI210171195163
6/8
20.is0. Compute the value of the t test statistics. Round intermediate calculations to four decimal places as needed andfinal answers to three decimal places as needed.d=x967y683A.t1.292=B.t2.890=C.t0.415=D.t0.578=Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values ofthe test statistic that would result in rejection of the null hypothesis. Suppose you wish to test the claim that, the meanvalue of the differences d for a population of paired data, is greater than 0. Given a sample of n15 and a significancelevel of0.01, what criterion would be used for rejecting the null hypothesis?d==21.Assume that you want to test the claim that the paired sample data come from a population for which the mean differenceis0. Compute the value of the t test statistics. Round intermediate calculations to four decimal places as needed andfinal answers to three decimal places as needed.d=x967y683A.t1.292=B.t2.890=C.t0.415=D.t0.578=Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test; i.e., describe the values ofthe test statistic that would result in rejection of the null hypothesis. Suppose you wish to test the claim that, the meanvalue of the differences d for a population of paired data, is greater than 0. Given a sample of n15 and a significancelevel of0.01, what criterion would be used for rejecting the null hypothesis?d==51267
9/26/2020Module 7 Homework: Textbook Chapter 8 and Chapter -joseph gogue7/8

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 8 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Fall
Professor
N/A
Tags
Statistics, Null hypothesis, Statistical hypothesis testing

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture