1.One hundred people are included in a study in which they are compared to a known population that has a mean of 73, a standard deviation of 20, and a rectangular distribution.

a.M = __________.

b.M = __________.

c.The shape of the comparison distribution is __________.

d.If the sample mean is 75, the lower limit for the 99% confidence interval is __________.

e.If the sample mean is 75, the upper limit for the 99% confidence interval is __________.

f.If the sample mean is 75, the lower limit for the 95% confidence interval is __________.

g.If the sample mean is 75, the upper limit for the 95% confidence interval is __________.