Question

1. What number corresponds to toos,10? a. 1.812 b. 1.372 c. 2.228 d. 1.833 If Pto)-2.50, then the number of degrees of freedom v is: 2. a. 20 b. 21 c. 22 d. 23 3. A professor of linguistics refutes 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 the claim? a. Ho: μ 3 vs. H1: μ > 3

please show your work......................

Answer 1

1.c is the right answer

Critical value of t at 0.05 level of significance at 10 degrees of freedom is 2.228

2.option d is the right answer

Degrees of freedom at 2.50 critical value at right tailed test is 23.

3. Option a is the right answer.

More time than 3 hours means alternative hypothesis mu>3. And the claim is mu=3