As a measure of productivity, Verizon Wireless records the number of customers each of its retail employees activates weekly. An activation is defined as either a new customer signing a cell phone contract or an existing customer renewing a contract. The following table shows the number of weekly activations for eight randomly selected employees along with their job-satisfaction levels rated on a scale of 1-10 110 = most satisfied2. This data can also be found in the Excel file Verizon satisfaction.xlsx.

Activations Satisfaction Activations Satisfaction 36 8.0 19 6.1 25 7.9 28 7.0 40 8.5 33 8.2 38 9.0 25 7.7

a. Calculate the sample covariance.

b. Calculate the sample correlation coefficient.

c. Describe the relationship between x and y.

AppendixLO1