A random sample of workers was selected and asked the number of emails they sent and the number of phone calls they made that day.The data collected is provided below.

x # emails y # phone calls

5 16

13 4

9 9

7 14

4 13

Identify each of the following:

x =

x =

xy =

x2=

y2=

Compute the value of the correlation coefficient. (round to 3 decimal places)

Compute the value of the slope. (round to one decimal place)

Compute the value of the y-intercept. (round to one decimal place)

Use the regression equation to predict the number of phone calls if an employees sent 10 emails. (round to one decimal place)