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The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of dally requests is bell-shaped and has a mean of 40 and a standard deviation of 6. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 28 and 40? Do not enter the percent symbol. ans = 96

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of dally requests is bell-shaped and has a mean of 40 and a standard deviation of 6. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 28 and 40? Do not enter the percent symbol. ans = 96

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 30PPS
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The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of dally requests is bell-shaped and has a mean of 40 and a standard devlation of 6. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 28 and 40? Do not enter the percent symbol. ans =
Transcribed Image Text:The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of dally requests is bell-shaped and has a mean of 40 and a standard devlation of 6. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 28 and 40? Do not enter the percent symbol. ans =
Expert Solution
Step 1

Using Empirical (or 68-95-99.7) rule, about 68% of all values fall within 1 standard deviation of the mean.

Statistics homework question answer, step 1, image 1

About 95% of all values fall within 2 standard deviation of the mean.

Statistics homework question answer, step 1, image 2

About 99.7% of all values fall within 3 standard deviation of the mean.

Statistics homework question answer, step 1, image 3

 

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