Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 7 randomly selected students are 61, 63, 64, 61, 60, 71 and 65. E = Ex: 12.34 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] (smaller value, larger value]
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 7 randomly selected students are 61, 63, 64, 61, 60, 71 and 65. E = Ex: 12.34 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] (smaller value, larger value]
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![Suppose the mean height in inches of all 9th grade students at one high school is
estimated. The population standard deviation is 5 inches. The heights of 7
randomly selected students are 61, 63, 64, 61, 60, 71 and 65.
T = Ex: 12.34
Margin of error at 95% confidence level = [Ex: 1.23
95% confidence interval = [ Ex: 12.34 Ex: 12.34 ]
[smaller value, larger value]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71d87d18-c291-48f0-93fd-95dc2b9f8086%2F4e863ea5-4333-43a0-981b-9d8a5342ae7b%2Fpj68o2j_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose the mean height in inches of all 9th grade students at one high school is
estimated. The population standard deviation is 5 inches. The heights of 7
randomly selected students are 61, 63, 64, 61, 60, 71 and 65.
T = Ex: 12.34
Margin of error at 95% confidence level = [Ex: 1.23
95% confidence interval = [ Ex: 12.34 Ex: 12.34 ]
[smaller value, larger value]
Expert Solution
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Step 1
Given :
The population standard deviation is 5 inches.
Data : 61,63,64,61,60,71,65
n = 7
Step by step
Solved in 2 steps
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