Another one-sample t test. The one-sample t statistic for testing H0: = 60 Ha: = 60 from a sample of n = 28

Another one-sample t test. The one-sample t statistic for testing H0: μ = 60 Ha: μ = 60 from a sample of n = 28 observations has the value t = 0.75.

(a) What are the degrees of freedom for t?

(b) Locate the two critical values t∗ from Table D that bracket t.

What are the right-tail probabilities p for these two values?

(c) How would you report the P-value for this test?

(d) Is the value t = 0.75 statistically significant at the 5% level?

At the 1% level?

(e) If you have software available, find the exact P-value.