Question

The Population Mean for daily high temperatures in Hawaii for the month of January is 80 degrees; however, the Population Standard Deviation is Unknown. A researcher tests whether mean January temperatures in Hawaii have been significantly higher over the last 9 years. The researcher calculates the mean temperature for the month of January for the years 2012 through 2020. The Sample Mean temperature for this 9-year period (sample) is 87 degrees. The researcher wants to maximize the Power of the Test. The data are presented below.

Subject	January Temps
1	96
2	90
3	90
4	89
5	87
6	87
7	86
8	84
9	74

Sum 783

Mean 87

N   9

**Calculate the Coefficient of Skew to test the Assumption of Normality. Input Answer the answer you calculate to 2 Decimal Places.

Answer 1

Solution:

The formula for finding the coefficient of skewness is:

Where: