SOLUTION: A sample of 16 students form a large university is taken. The average age in the sample was 22 years with a standard deviation of six years. Construct a 95% confidence interval f
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Question 822164: A sample of 16 students form a large university is taken. The average age in the sample was 22 years with a standard deviation of six years. Construct a 95% confidence interval for the average age of the population. assume the population of student ages is normally distributed. Answer by ewatrrr(24785) (Show Source):
Hi
The average age in the sample of 16 was 22 years with a standard deviation of six years.
ME =
95% confidence interval for the average age of the population.
22 - ME < < 22 + ME
Note:
80% z = 1.28155
90% z =1.645
92% z = 1.751
95% z = 1.96
98% z = 2.326
99% z = 2.576
