Solution Found!
A 95% confidence interval for a population mean, , is
Chapter , Problem 5.5(choose chapter or problem)
A 95% confidence interval for a population mean, , is given as (18.985, 21.015). This confidence interval is based on a simple random sample of 36 observations. Calculate the sample mean and standard deviation. Assume that all conditions necessary for inference are satisfied. Use the t-distribution in any calculations.
Questions & Answers
QUESTION:
A 95% confidence interval for a population mean, , is given as (18.985, 21.015). This confidence interval is based on a simple random sample of 36 observations. Calculate the sample mean and standard deviation. Assume that all conditions necessary for inference are satisfied. Use the t-distribution in any calculations.
ANSWER:Step 1 of 2
Given,
The 95% confidence interval, CI = (18.985, 21.015)
Sample size, n = 36
The mean,