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A publishing company claims that in fall 2019, the average price of college textbooks for a single semester is $385. Suppose you decide to collect
A publishing company claims that in fall 2019, the average price of college textbooks for a single semester is $385. Suppose you decide to collect data from a random sample of students to assess whether the publisher's claim is reasonable, and you find that in a random sample of 22 college students, the mean price of textbooks for the fall 2019 semester was $433.50 with a standard deviation of $86.92. At the 0.01 significance level, is there sufficient evidence to conclude that the mean price of college textbooks for a single semester is different from the value claimed by the publisher? We can assume that the textbook prices are normally distributed. What are the hypotheses for this test? O Ho: u = 433.5 Ha: M 433.5 O Ho: M = 385 Ha: M + 385 O Ho: M = 385 Ha: M < 385 O Ho: M = 385 Ha: M > 385
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