................

A paint manufacturing company claims that the mean drying time for its paint is 45 minutes. A consumer agency is suspicious about this claim and believes the drying time is higher than 45 minutes. The consumer agency intends to check it by taking a sample of 25 separate gallons of paint selected from the production line of this company. The mean drying time for this sample is 49.5 minutes and the sample standard deviation is 9.62 minutes. Assume that the drying time for all the company's paints has a normal distribution. Choose the best answer for Ho , Ha , Test Statistic E. ~ State the Null Hypothesis, Ho A. 3.01 C. ~ State the Alternative B. Ha > 45 Hypothesis, Ha C. Ha 49.5 G. Ho # 45 C. State the Alternative B. Ha > 45 Hypothesis, Ha C. Ha 49.5 G. Ho # 45 H. 2.34 1. 0.47 1 0