Question

We are testing H0: μ = 4. Our 95% confidence interval is (1.2,3.5). 15. The sample average was:

16. We expect the t-statistic to be (circle one:) less than -2 / between -2 and 0 / between 0 and 2 / greater than -2 17. We should expect the p-value to be (circle one:) less than .05 / greater than .05
18. We should (circle one:) reject H0 / fail to reject H0
19. It is possible that we could be making a (circle one:) Type I error / Type II error

Answer 1

16:

Here,

Since the sample standard is less than hypothesized price as test statistics must be negative.

Since the confidence interval does not contain as 4 so we reject the null hypothesis.

So as to is test statistics should be smaller than -2.

So that,

Answer: less than -2

17:

Since null hypothesis rejected thus p-value must be less than 0.05

So that,

Less than 0.05

18:

Here,

Reject H0

19:

Here,

Since we reject the H0 consequently type I error is possible.