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Ket [755]
3 years ago
15

Suppose the mean height in inches of all 9th-grade students at one high school is estimated. The population standard deviation i

s 6 inches. The heights of 7 randomly selected students are 73 ,70 ,61 ,75 ,60 , 60 and 67 .
=


Margin of error at 90% confidence level =


90% confidence interval = [
SAT
1 answer:
Lunna [17]3 years ago
5 0

Answer:

I'

Explanation:

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