Please solve asap.

Freedom LTE 6:55 PM @ 37% a docs.google.com 3. The sales manager gathered 8 points information on the numbers of sales calls made and the number of copiers sold for a random sample of sales representative. Is there a positive correlation between calls made and copiers? Test at the 0.05 level of significance. Determine the 90% prediction interval for 60 number of calls made. * Calls, X Sold, Y 20 40 20 50 40 60 50 90 40 80 20 40 40 60 30 60 Your answer Back Submit + 56