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)

Question

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)

Quizplus · Accepted Answer

The Answer of 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)

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