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A business statistics class conducted a student survey in which 299 students were randomly selected and asked a variety of questions. One of the
A business statistics class conducted a student survey in which 299 students were randomly selected and asked a variety of questions. One of the questions asked "How many friends do you have on a popular social media site?" To find a confidence interval for the mean number, a student drew 1000 bootstrap samples of the data and obtained the following histogram and summary statistics. Complete parts a through c below. Click here to view the results from resampling. a) Use the data to construct a 98% confidence interval for the mean number of friends. (Round to three decimal places as needed.) Resampling Results # of Samples 250- 200- 150- 100- 50- 0- 720 Summary statistics of the mean: 0.5% 1% 2% 2.5% 707.557 712.528 716.207 717.526 740 760 Mean Number of Friends 780 800 o 5% 95% 97.5% 98% 99% 726.800 791.481 797.946 799.183 803.481 99.5% 806.422
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