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takes only inly not Normal. It is also highly skewed to the right, with a reported median of 200 friends. Suppose that σ= 380 and you take an SRS of 80 adult Facebook users. (a) For your sample, what are the mean and standard deviation of x, the mean number of friends per adult user? (b) Use the central limit theorem to find the probability that the average number of friends for 80 Facebook users is greater than 350.

takes only inly not Normal. It is also highly skewed to the right, with a reported median of 200 friends. Suppose that σ= 380 and you take an SRS of 80 adult Facebook users. (a) For your sample, what are the mean and standard deviation of x, the mean number of friends per adult user? (b) Use the central limit theorem to find the probability that the average number of friends for 80 Facebook users is greater than 350.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4CGP
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5.34 Number of friends on Facebook. To commemorate Facebook's 10-year milestone, Pew Research reported several facts about Facebook obtained from its Internet Project survey. One was that the average adult user of Facebook has 338 friends. This population distribution
Transcribed Image Text:5.34 Number of friends on Facebook. To commemorate Facebook's 10-year milestone, Pew Research reported several facts about Facebook obtained from its Internet Project survey. One was that the average adult user of Facebook has 338 friends. This population distribution
takes only integer values, so it is certainly not Normal. It is also highly skewed to the right, with a reported median of 200 friends. Suppose that o = 380 and you take an SRS of 80 adult Facebook users. (a) For your sample, what are the mean and standard deviation of x, the mean number of friends per adult user? (b) Use the central limit theorem to find the probability that the average number of friends for 80 Facebook users is greater than 350. p W t
Transcribed Image Text:takes only integer values, so it is certainly not Normal. It is also highly skewed to the right, with a reported median of 200 friends. Suppose that o = 380 and you take an SRS of 80 adult Facebook users. (a) For your sample, what are the mean and standard deviation of x, the mean number of friends per adult user? (b) Use the central limit theorem to find the probability that the average number of friends for 80 Facebook users is greater than 350. p W t
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