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, 6:30 pm ad1c9bdddf
In this question,
N = 40
M = 6.05
SD = 2.44
we use two-tailed 95% t value with ...
Solution provides clear example on how to construct a confidence interval for the mean number of misspelled words in a collection of student essays.