Assignment:
Suppose that you are testing the hypotheses H0: μ=13 vs. HA: μ > 13. A sample of size 16 results in a sample mean of 13.5 and a sample standard deviation of 1.8.
a) What is the standard error of the mean?
b) What is the critical value of t* for a 90% confidence interval?
c) Construct a 90% confidence interval for μ.
d) Based on the confidence interval, at α = 0.05 can you reject Ho? Explain.