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March 28, 2015

Homework Help: statistics

Posted by Misty on Tuesday, September 25, 2012 at 9:01am.

A soft drink distributor was interested in examining the relationship between the number of ads (x) for his product during prime time on a local television station and the number of sales per week (y) in 1000ís of cases. He compiled the figures for 20 weeks and computed the following summary information: n=20, sum of x=92, sum of y=177, sum product of x and y=884, stdev of x=1.3917 and stdev of y=2.9069. Find the correlation coefficient for the number of ads during prime time
weekly sales.

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