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If question B is a t test i need the degree of freedom V Capadel The owner of a chain of mini-markets wants to compare

If question B is a t test i need the degree of freedom

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V Capadel The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Though the two stores have been comparable In the past, the owner has made several Improvements to Store 2 and wishes to see If the Improvements have made Store 2 more popular than Store 1. 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 8 days, chosen at random. She records the sales (In dollars) for each store on these days, as shown In the table below. Day S Store 1 614 279 922 740 222 565 BZ 915 Store 2 576 464 1045 864 277 574 396 907 Difference (Store 1 - Store 2) 38 - 185 -123 - 124 -114 8 Send data bo chiculabor Based on these data, can the owner conclude, at the (101 level of significance, that the mean dally sales of Store 2 exceeds that of Store 17 Answer this question by performing a hypothesis test regarding | (which is | with a letter "d' subscript), the population mean dally sales difference between the two stores. Assume that this population of differences (Store 1(minus Store 2) is normally distributed. Perform a one talled test. Then complete the parts below. Carry your Intermediate computations to three or more decimal places and round your answers as spedfled. (IF necessary, consult a (8) State the null hypothesis ho and the siternative hypothesis H : [ 3 H D (b) Determine the type of teat statistic to use Type of test statistic: [Choose one] 0=0 050 020 (c) Find the value of the test statistic. (Round to three or more dedmal places.) X 5 (d) Find the critical value at the 0 01 level of significance. (Round to three or more decimal places.) (#) At the 0.01 level, can the owner condude that the mean dally sales of Store 2 exceeds that of Store 17 Over ONo

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