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1. [1/5 Points] DETAILS MY NOTES PREVIOUS ANSWERS PRACTICE ANOTHER You may need to use the appropriate appendix table or technology to answer this 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 n = 24 days n, = 28 days Sample mean (in $1,000) x1 = 35 x2 = 32 Sample standard deviation (in $1,000) 51 = 3 5 2 = 5 (a) Determine the point estimate of the difference (in thousands of dollars) between the population means. (Use x] - x2.) 3 (b) Determine the degrees of freedom for an interval estimation. (Round your answer down to the nearest integer.) 31 X (c) Compute the margin of error. (Round your answer to three decimal places.) (d) Develop a 95% confidence interval (in thousands of dollars) for the difference between the two population means. (Round your answers to three decimal places.) to Submit Answer Home My Assignments + Request Extension