1 1 point A simple random sample of four young American wome

1. (1 point) A simple random sample of four young American women is selected and their heights measured. The four heights, in inches, are: 63 69 62 66.

a. Suppose the heights of young American women, in inches, are Normally distributed with unknown mean and it is known that the population standard deviation is = 2.4. Based on the data above, compute the test statistic you would use to perform the significance test versus .

b. Suppose the heights of young American women, in inches, are Normally distributed with unknown mean and the standard deviation of the population is not known. Based on the data above, compute the test statistic you would use to perform the significance test versus .

Solution