Question: #6. In previous test, baseballs were dropped 24 feet onto a concrete surface and they bounced an average of 92.84 inches with a standard deviation of 1.8 inches. In a test of 40 new baseballs, the bounce heights had a mean of 92.67 inches. Use of 0.05 significance level to determine if the new balls have bounce heights different from the original height of 92.84 inches.