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Allisa [31]
4 years ago
5

A study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distrib

uted with a mean of 10 hours. The population standard deviation is 2 hours. What is the 95% confidence interval for the mean?
A) 9.88-10
B) 10-10.12
C) 9.88-10.12
D) 9.76-10.24
Mathematics
1 answer:
stepan [7]4 years ago
3 0
<span>The answer for the question above is C) 9.88-10.12</span>
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3 years ago
How to solve this problem in the picture above
IRISSAK [1]

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