Mathematics, 25.11.2019 22:31 tcapele252
*some college students did a study of textbook pricing. they compared pries at the campus bookstore and amazon for the same price. to be fair, they included the sales tax for the local store and the added shipping form amazon. here are the prices for a sample of 10 books. campus amazon 99.34 113.94 51.53 61.44 20.45 31.59 97.22 108.29 61.89 78.44 58.17 65.74 61.63 63.49 44.63 40.39 96.69 117.99 48.88 58.94 a. we want to determine if there is a significant difference in the price of textbooks from the campus bookstore and from amazon. which type of test would we use for this data? b. determine a 95% confidence interval for the difference of the population means. c. interpret your results. is there a substantial difference between the two ways to be textbook? assuming that the populations remain unchanged and you have just these two sources, where would you buy
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*some college students did a study of textbook pricing. they compared pries at the campus bookstore...
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