Use this information to answer questions 9 - 14. Western Apple, a manufacturer o

Question

Use this information to answer questions 9 - 14. Western Apple, a manufacturer of frozen apple juice concentrate, believed that compared to unfrozen canned apple juice Western’s frozen product was more convenient, better quality, and cheaper. In order to decide which attribute to focus on in their advertising, Western developed three preliminary ads and used those in three different cities. The results of the cities’ sales per week in the cities and the statistical test they performed are below. They used a significance level of .05. SUMMARY Groups Count Sum Average Variance Convenience 20 11551 577.55 10775 Quality 20 13060 653 7238.105 Price 20 12173 608.65 8670.239 Source of Variation SS df MS F P-value F crit Between Groups 57512.23 2 28756.12 3.233 0.047 3.159 Within Groups 506983.5 57 8894.447 Total 564495.7 59 Which of the following is the appropriate statistical test to use? Select one: a. One-factor ANOVA b. Two-factor ANOVA c. Difference of sample means – matched pairs samples d. Difference of sample means – independent samples Question 10 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text Which of the following is the appropriate null hypothesis? Select one: a. The mean sales for price equals the mean sales for convenience b. The mean sales for convenience equals the mean sales for quality c. All three means are equal d. The mean sales for quality equals the mean sales for price Question 11 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text Using the P-value of the test and alpha = .05, they should Select one: a. Reject the alternate hypothesis b. Accept the alternate hypothesis c. Accept the null hypothesis d. Reject the null hypothesis Question 12 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text Which of the following is the correct conclusion from this test? Select one: a. Reject the null hypothesis. All three means are equal. b. Accept the alternate hypothesis. All three means are not equal. c. Don’t reject the null hypothesis. All three means are equal. d. Reject the null hypothesis. All three means are not equal. Question 13 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text Which two means are most likely to be different? Select one: a. Quality and convenience b. Convenience and price c. Price and quality Question 14 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text From observing the test results, which advertising theme is likely to be least successful? Select one: a. Price b. Quality c. Convenience Question 15 Not yet answered Marked out of 3.34 Not flaggedFlag question Question text Use this information to answer questions 15 - 20. A manufacturer of car tires developed a new tread design that they hoped would extend tire life. To test the new design (Design 2) relative to the old design (Design 1) the company put a Design 1 and a Design 2 tire on the rear wheels of 20 consumers cars then compared the times until each of the tires wore out. That data and the Excel output of the statistical test are below. Design 1 Design 2 Mean 73.6 69.05 Variance 242.779 316.366 Observations 20 20 Pearson Correlation 0.915 Hypothesized Mean Difference 0 df 19 t Stat 2.818 P(T<=t) one-tail 0.005 t Critical one-tail 1.729 P(T<=t) two-tail 0.011 t Critical two-tail 2.093 This is a ____ test. Select one: a. Difference of proportions b. Two-factor ANOVA c. Difference of means for matched pairs d. Difference of independent sample means

Explanation / Answer

Question 9:-

a. One-factor ANOVA

Question 10:-

c. All three means are equal

Question 11:-

d. Reject the null hypothesis

Question 12:-

b. Accept the alternate hypothesis. All three means are not equal.

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