Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 6 inches. The heights of 6 randomly selected students are 64, 66, 74, 61, 74 and 65. * = Ex: 12.34 Margin of error at 90% confidence level = Ex: 1.23 90% confidence interval = [ Ex: 12.34 Ex: 12.34 ] %3D [smaller value, larger value]

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5.7.1: Confidence intervals for population means.
ACTIVITY
Jump to level 1
1
Suppose the mean height in inches of all 9th grade students at one high school is
estimated. The population standard deviation is 6 inches. The heights of 6
randomly selected students are 64, 66, 74, 61, 74 and 65.
* = Ex: 12,34
Margin of error at 90% confidence level = Ex: 1.23
90% confidence interval = [ Ex: 12.34
Ex: 12.34 ]
[smaller value, larger value]
1
Check
Next
Transcribed Image Text:CHALLENGE 5.7.1: Confidence intervals for population means. ACTIVITY Jump to level 1 1 Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 6 inches. The heights of 6 randomly selected students are 64, 66, 74, 61, 74 and 65. * = Ex: 12,34 Margin of error at 90% confidence level = Ex: 1.23 90% confidence interval = [ Ex: 12.34 Ex: 12.34 ] [smaller value, larger value] 1 Check Next
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