Question: A travel agency reported that a random sample of 30 couples vacationing in Jamaica for a week spent an average of $2,750 with a sample standard deviation of $100. A random sample of 30 couples vacationing in Bermuda spent an average of $3050 with a standard deviation of $250.

a. What is an appropriate null hypothesis for the difference in the two means?

b. At 90% confidence, what is the test statistic?

c. What is the critical value?

d. What is your conclusion concerning the null hypothesis?