Is there a good reason to believe that evening
customers purchase, on average, more than day
customers? Support your answer by performing a
statistical test on the difference between the mean
day purchase and the mean evening purchase
(using a one-tailed test). PLEASE JUST HELP
DRAW ONE TAILED TEST WITH EXPLANATION.
THANK YOU
Is There A Good Reason To Believe That Evening Customers Purchase On Average More Than Day Customers Support Your Ans 1 (56.44 KiB) Viewed 37 times
Attachment 1 Purchases and Purchase Cost for Randomly Selected Customers Julie randomly selected 60 customer invoices - 30 from day customers, 30 from evening customers. The purchase revenue and cost data are shown below. (For example, the first day customer made a purchase of $32.50, and the alcohol purchased cost $23.89 to stock.) DAY Purchase Revenue Cost 43.59 28.51 31.38 23.55 32.09 21.66 26.78 17.93 26.39 18.38 33.84 22.96 32.39 25.24 25.29 17.72 EVENING Purchase Revenue 32.50 23.89 40.29 32.00 35.22 25.90 34.66 25.20 39.99 30.40 35.87 24.01 23.08 16.53 36.40 28.60 39.48 28.32 30.95 24.95 30.55 20.17 33.69 22.42 24.77 18.49 33.82 25.89 30.13 21.11 34.92 23.07 31.16 24.91 35.15 25.39 34.67 25.75 32.89 22.99 32.37 25.03 36.30 28.63 40.71 29.61 38.44 29.51 33.07 23.31 32.49 25.36 43.86 29.51 34.91 25.26 45.88 36.39 42.31 29.83 36.69 29.89 21.11 14.41 27.60 22.23 37.79 25.50 38.37 29.00 27.14 21.31 Cost 52.78 37.08 37.43 28.81 30.20 19.86 37.99 26.54 26.90 19.19 47.19 34.88 33.48 25.12 44.20 36.09 33.52 22.76 37.15 26.24 35.81 26.79 37.61 30.29 31.07 23.27 24.35 19.50 34.90 28.07 25.68 24.51
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