The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Sales can vary considerably depending on the day of the week and the season of...

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Extracted text: The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Sales can vary considerably depending on the day of the week and the season of the year, so she decides to eliminate such effects by making sure to record each store's sales on the same sample of days. After choosing a random sample of 10 days, she records the sales (in dollars) for each store on these days, as shown in the table below. Difference Day Store 1 Store 2 (Store 1- Store 2) 1 995 641 354 247 238 9. 3 224 290 -66 997 966 31 561 610 - 49 661 347 314 7 542 322 220 8 252 94 158 442 514 - 72 10 788 778 10 Send data to calculator Based on these data, can the owner conclude, at the 0.05 level of significance, that the mean daily sales of the two stores differ? Answer this question by performing a hypothesis test regarding (which is µ with a letter "d" subscript), the population mean daily sales difference between the two stores. Assume Save For Later Submit Assign Check O2021 McGraw-Hill Education. All Rights Reserved. Terms of Use I Privacy | Ac


Extracted text: Based on these data, can the owner conclude, at the 0.05 level of significance, that the mean daily sales of the two stores differ? Answer this question by performing a hypothesis test regarding u, (which is u with a letter "d" subscript), the population mean daily sales difference between the two stores. Assume that this population of differences (Store 1 minus Store 2) is normally distributed. Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H,. H, :0 H, :0 (b) Determine the type of test statistic to use. O=0 OSO Type of test statistic: (Choose one) v (c) Find the value of the test statistic. (Round to three or more decimal places.) O