Adult IQs Are Normally Distributed, with a Standard Deviation of 15.We

question 51

Multiple Choice

Adult IQs are normally distributed, with a standard deviation of 15.We sample 10 adults and find .What is a 95% confidence interval for the mean adult IQ?

• A) (65.6, 124.4)
• B) (85.703, 104.297)
• C) (83.967, 106.033)
• D) (85.513, 104.487)

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