nformation concerning the average amount of money spent on textbooks during the fall emester. University A 50 University B 40 ample Size verage Purchase tandard Deviation (ơ) $260 $ 20 $250 $ 23 ) Find the point estimate of the difference between the mean amount spent on textbooks between University A and University B. ) Find the 95% confidence interval for the difference between the mean amount spent on textbooks between University A and University B. ) Find the 99% confidence interval for the difference between the mean amount spent on textbooks between University A and University B.

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