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mariasmakatof mariasmakatof
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A year ago
Adult IQs are normally distributed, with a standard deviation of 15. We sample 10 adults and find\(\style{font-family:Times New Roman;}{\overline x=95}\). What is a 95% confidence interval for the mean adult IQ?


(65.6, 124.4)



(85.703, 104.297)



(83.967, 106.033)



(85.513, 104.487)

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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kraftykrafty
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A year ago
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mariasmakatof Author
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A year ago
Thank you, thank you, thank you!
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You make an excellent tutor!
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