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Consider the following sample. 23 45 25 35 72 35 50 82 39 72 71 94 50 91 35 86 33 54 77 36 14 49 45 64 45 45 56 25 13 64 a) Calculate the mean and standard deviation for this data. b) Determine the percentage of data values that fall in each of the intervals x ±s, x ±2s, and x ± 3s. c) Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell-shaped population? a) What is the mean of the data set? x = 50.83 (Round to two decimal places as needed.) What is the standard deviation of the data set? s = 22.38 (Round to two decimal places as needed.) b) What percentage of the data values fall within the interval x ±s? %. The percentage of data values that fall within the interval is (Round to the nearest percent as needed.)

Consider the following sample. 23 45 25 35 72 35 50 82 39 72 71 94 50 91 35 86 33 54 77 36 14 49 45 64 45 45 56 25 13 64 a) Calculate the mean and standard deviation for this data. b) Determine the percentage of data values that fall in each of the intervals x ±s, x ±2s, and x ± 3s. c) Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell-shaped population? a) What is the mean of the data set? x = 50.83 (Round to two decimal places as needed.) What is the standard deviation of the data set? s = 22.38 (Round to two decimal places as needed.) b) What percentage of the data values fall within the interval x ±s? %. The percentage of data values that fall within the interval is (Round to the nearest percent as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Consider the following sample. 23 72 72 45 25 35 35 86 33 54 77 36 35 50 82 39 14 49 45 64 45 71 94 50 91 45 56 25 13 64 a) Calculate the mean and standard deviation for this data. b) Determine the percentage of data values that fall in each of the intervals x ±s, x ±2s, and x ± 3s. c) Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell-shaped population? a) What is the mean of the data set? x = 50.83 (Round to two decimal places as needed.) 0 What is the standard deviation of the data set? s = 22.38 (Round to two decimal places as needed.) b) What percentage of the data values fall within the interval x ±s? %. The percentage of data values that fall within the interval is (Round to the nearest percent as needed.)
Transcribed Image Text:Consider the following sample. 23 72 72 45 25 35 35 86 33 54 77 36 35 50 82 39 14 49 45 64 45 71 94 50 91 45 56 25 13 64 a) Calculate the mean and standard deviation for this data. b) Determine the percentage of data values that fall in each of the intervals x ±s, x ±2s, and x ± 3s. c) Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell-shaped population? a) What is the mean of the data set? x = 50.83 (Round to two decimal places as needed.) 0 What is the standard deviation of the data set? s = 22.38 (Round to two decimal places as needed.) b) What percentage of the data values fall within the interval x ±s? %. The percentage of data values that fall within the interval is (Round to the nearest percent as needed.)
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