Q1) As MSU student, you would like to know average grade point average (GPA) for all students enrolled in MSU in spring semester of 2007.  You make a decision to take a sample of 200 students who were enrolled at MSU in spring semester of 2007 and ask them each what their GPA is.  Mean of this sample is 2.71 with sample standard deviation of .55.  What is range of values within which you can be 99% certain that mean GPA of all students enrolled in MSU in spring semester of 2007 falls?  Mention your conclusion in one complete sentence.

Q2) A researcher at MSU reported that according to her sample, college graduate students at MSU take have average of 7.1 sexual partners with sample standard deviation of 3.4.  N of this study was 4396.

i) Determine the point estimate in this study?

ii) Compute the standard error in this example?

iii) What is the population in this example?