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QUESTION:

PART A

A fast food chain wants to compare daily sales during three types (A,B,C) of sales promotions. The sales promotions were employed in four different cities, and the orders of promotions were randomly assigned within each city. The amount of sales (in thousands of dollars) for one store in each city was measured. Test if the mean amount of sales for the three types of promotions are different. State the null and alternative hypotheses. H0: muA=muB=muC, Ha: At least two mu's are different H0: At least two mu's are different, Ha: muA=muB=muC H0: mu1=mu2=mu3=mu4, Ha: At least two mu's are different H0: At least two mu's are different, Ha: mu1=mu2=mu3=mu4 Continue to consider Question 8. Fill in DF the ANOVA table. Source DF SS MS F Treatment (a) 30 15 (e) Block (b) 0.9 0.3 (f) Error (c) 9 1.5 Total (d) 39.9 O (a) = 3, (b) = 2, (c) = 6, (d) = 11 O (a) = 3, (b) = 2, (c) = 7, (d) = 12 O (a) = 2, (b) = 3, (c) = 7, (d) = 12 O (a) = 2, (b) = 3, (c) = 6, (d) = 11\fContinue to consider Question 8. Find the rejection region. Use a 0.10 level of significance. OF > 2.86 OF 3.46Continue to consider Question 8. What is your conclusion at 0.10 level of significance? O Do not reject HO. Insufficient evidence that all promotions have the same mean sales. O Reject HO. Sufficient evidence that all promotions have the same mean sales. O Do not reject HO. Insufficient evidence that at least two promotions have different mean sales. O Reject HO. Sufficient evidence that at least two promotions have different mean sales.Continue to consider Question 8. Match up the response variable, factor, blocks, and experimental units to the items on the right. Response variable J [Choose ] Amount of sales City Factor Fast food chain stores Promotion type BIOCk [ Choose] 4P Experimental units [ Choose ] 4F