The following data shows the weekly purchases of printers at a particular electronic store. The data can also be found in the Excel file weekly printer demand.xlsx.

8 15 12 17 19 12 14 5 8 3 3 15 6 16 15 10 12 17 12 12 6 10 9 10 9 17 8 8 16 6 19 11 3 9 12 7 15 10 14 14 13 10 11 7 17 Using a = 0.05, perform a chi-square test to determine if the number of printers sold per week follows the normal probability distribution. Note that x = 11.2 and s = 4.3.

AppendixLO1