Question 1
A single number computed from a sample that serves as a guess for a parameter is called a(n):
◦
point estimate.
◦
approximate estimate.
◦
confidence estimate.
◦
confidence interval.
Question 2
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)