Y. A sample of 16 ATM transactions shows a mean transaction time of 6'." seconds with a standard deviation of 12 seconds. Find the critical value to test whether the mean transaction time exceeds 5D seconds at o = .1. a. 2.583 b. 2.333 c. 2.94? d. 2.532 3. Ajax Peanut Butler's quality control allows 2 percent of the jars to exceed the quality standard for insect fragments. A sample of 15C! jars from the current day's production reveals that 3E} exceed the quality standard for insect fragments. Which is incorrect? a. Normality of p may safely be assumed in the hypothesis test. o. A righttailed test would be appropriate. c. Type II error is more ofa concern in this case than Type I error. d. Common sense suggests that quality control standards aren't met. 9. In the hypothesis Ho: p 2 us, the value of up is not derived from: a. the sample. I]. atarget or benchmark. c. a scientic theory. d. past experience