Question 14 4 out of 4 points A professor of linguistics refuses the claim that the average student spends 3 hours studying for the midterm exam. She thinks they spend more time than that. Which hypotheses are used to test her claim? Selected Answer: o HO:p<3vs.Hl:y>3 Answers: , HO: uy#3vs.HL: u=3 b.HO: U= 3vs. Hl: y #3 cIC.HO:us3v5.H1:u>3 dHO:uz3vs.Hl:u<3 Question 15 4 out of 4 points A behaviorist has performed the following experiment. For each of 10 sets of identical twins who were born 30 years ago, he recorded their annual incomes, according to which twin was born first. The results (in $1,000s) are shown in Twin Sets. xisx . Can he infer at 5% significance level that there is a difference in income between the twins? Selected Answer: @, b, The behaviorist can't infer at 5% significance level that there is a difference in income between the identical twins, according to this data, Answers: a, The behaviorist can infer at 5% significance level that there is a difference in income between the identical twins, according to this data. @ b. The behaviorist can't infer at 5% significance level that there is a difference in income between the identical twins, according to this data. ¢. The behaviorist accepts that at 5% significance level that there is a difference in income between the identical twins, according to this data. d. BothAand C
