Confidence Intervals for a Population Mean
A random sample of 144 observations has a mean of 20, a median of 21 and a mode of 22. The population standard deviation is known to equal 4.8. What is the 95.44% confidence interval for the population mean?© SolutionLibrary Inc. solutionlibary.com 9836dcf9d7 https://solutionlibrary.com/statistics/hypothesis-testing/confidence-intervals-for-a-population-mean-7h2r
...=2. So, The 95.44% confidence interval for the population mean ...