The ticket sales and the number of units of popcorn sold at AMC Cinema for 8 days is shown below.

(a) Determine the correlation coefficient between ticket sales and units of popcorn sold. 

(b) Determine whether a correlation exists at a=0.05. 

(c) Determine the equation of the line of best fit for ticket sales and units of popcorn sold. 

(d) Use the equation in part (c) to estimate the units of pop-corn sold if 115 tickets are sold.

Round both m and b the nearest hundredth.

Transcribed Image Text:

Ticket sales Units of popcorn 22 89 110 125 92 100 95 108 97 28 30 26 22 21 28 25