Consumer Reports uses a surey of readers to obtain customer satisfaction ratings for the nations largest retailers. Each survey respondent is asked to rate a specified retailers in terms of six factors. 1. Quality of products 2. selection 3. value 4. check out effeciency 5. service 6. store layout. An overal satisfaction score summarizes the ratings for each respondent with 100 meaning the respondent is completely satisfied in terms of all six facots. Sample data representative of independent samples of target and walmart are shown below. Target N 25 X 79 Walmart N 79 X 71 A. Assume that experience with the consumer reports satisfactin rating scale indicates that a population standard deviation of 12 is a reasonable assumption for both retailers. Conduct the hyopthesis test and report the p-value below. At a 0.05 level of signficant, what is your conclusion. B. Enter P-value here with 4 decimal places and a 0 in front of decimal. C. conclusion (Enter reject or do not reject
Consumer Reports uses a surey of readers to obtain customer satisfaction ratings for the nations largest retailers. Each survey respondent is asked to rate a specified retailers in terms of six factors. 1. Quality of products 2. selection 3. value 4. check out effeciency 5. service 6. store layout.
An overal satisfaction score summarizes the ratings for each respondent with 100 meaning the respondent is completely satisfied in terms of all six facots. Sample data representative of independent samples of target and walmart are shown below.
Target
N 25
X 79
Walmart
N 79
X 71
A. Assume that experience with the consumer reports satisfactin rating scale indicates that a population standard deviation of 12 is a reasonable assumption for both retailers. Conduct the hyopthesis test and report the p-value below. At a 0.05 level of signficant, what is your conclusion.
B. Enter P-value here with 4 decimal places and a 0 in front of decimal.
C. conclusion (Enter reject or do not reject
D. Provide a 95% confidence interval for the difference between the population mean customer satisfaction scores for the two retailers. Round your answers to 2 decimal places
_____ to ________
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