Dr. Patton is a Professor of English. Recently he counted the number of misspelled words in a group of student essays. For his class of 40 students, the mean number of misspelled words was 6.05 and the standard deviation 2.44 per essay. Construct a 95 percent confidence interval for the mean number of misspelled words in the population of student essays.© BrainMass Inc. brainmass.com June 3, 2020, 9:29 pm ad1c9bdddf
Step by step method for computing confidence interval for population mean.