Question

c. Go back to the original data from the two tables you created in #1a (Pepsi Sales & Location, Coke Sales & Location), in which you have a sample size of 50 (n=50) for each. Calculate the t-based confidence intervals (2-tailed) for the means of Average Daily Sales for both Coke and Pepsi at 99% confidence (a/2=.005), at 49 degrees of freedom (df=n-1=49) for each tail.

The mean for Coke is 817.28 and for Pepsi is 711.3.

STD for Coke is 276.83 and for Pepsi is 237.35.

Answer 1