A Study Was Conducted to Determine If Differences in New

question 156

Multiple Choice

A study was conducted to determine if differences in new textbook prices exist between on-campus bookstores,off-campus bookstores,and Internet bookstores.To control for differences in textbook prices that might exist across disciplines,the study randomly selected 12 textbooks and recorded the price of each of the 12 books at each of the three retailers.You may assume normality and equal-variance assumptions have been met.The partially completed ANOVA table based on the study's findings is shown here: Based on the study's findings,can it be concluded that there is a difference in the average price of textbooks across the three retail outlets? Conduct the appropriate hypothesis test at the alpha = 0.10 level of significance.

• A)F = 0.0411 < F_α=0.10 = 2.56,reject the null hypothesis.Thus,based on these sample data we can conclude that there is a difference in textbook prices at the three different types of retail outlets.
• B)F = 0.0411 < F_α=0.10 = 2.56,do not reject the null hypothesis.Thus,based on these sample data we cannot conclude that there is a difference in textbook prices at the three different types of retail outlets.
• C)F = 0.031 < F_α=0.10 = 2.56,reject the null hypothesis.Thus,based on these sample data we can conclude that there is a difference in textbook prices at the three different types of retail outlets.
• D)F = 0.031 < F_α=0.10 = 2.56,do not reject the null hypothesis.Thus,based on these sample data we cannot conclude that there is a difference in textbook prices at the three different types of retail outlets.

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