MTH 410 Midterm: Hypothesis Testing Small Sample.docx

Suppose we wish to test the hypotheses Ho:u= 10 versus H.: u<10, where u represents the mean age of non-high school aged children who are members of a large gymnastics club in a metropolitan area. Assume age follows a Normal distribution with o=2. A random sample of 16 ages is drawn from the population, and we find the sample mean of these observations to be X = 8.76. 34. What is the value of the test statistic? A) Z=-0.62 B) z=-1.24 C z =-2.48 D) Z=-9.92

A statistician estimated a rate of increase in population   in the city he was living. Find the number of people added after .

A statistician estimated a rate of increase in population   in the city he was living. What is the number of people added after  years?