Stats Solutions

(Solved) In order to estimate the difference between the average daily sales of two branches of a department store, the following data has been gathered.

Question: In order to estimate the difference between the average daily sales of two branches of a department store, the following data has been gathered.

Downtown Store North Mall Store
Sample size n1 = 23 days n2 = 26 days
Sample mean (in $1,000) = 37 = 34
Sample standard deviation (in $1,000) S1 = 4 S2 = 5
a. Determine the point estimate of the difference between the means.
b. Determine the degrees of freedom for this interval estimation.
c. Compute the margin of error.
d. Develop a 95% confidence interval for the difference between the two population means.

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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