The San Antonio Aquarium management thinks they will get more customers by shifting their Sunday afternoon hours to Saturday afternoon. They take a sample of days with the current Sunday and new Saturday afternoon hours.

Saturday: 60, 60, 60, 80, 80, 100, 70, 70

Sunday: 80, 70, 70, 30, 40, 30, 50, 50

1. Provide null and alternative hypotheses in formal terms and layperson's terms for the t test for independent samples (10)

2. Do the math and reject/accept at a=.05 (15)

3. Explain the results in layperson's terms (20)

4. Calculate and explain a 95% confidence interval in layperson's terms if appropriate. If not, you must explain why not.

5. The aquarium thinks the average number of customers for ALL weekend afternoon hours is 70. Use the ALL the data to answer:

5a. Provide the null and alternative hypotheses formal and layperson's (informal) terms for a t one-sample test. (

5b. Do the math and reject/accept at a=0.05

5c. Explain the results in layperson's terms