At a large publishing company, the mean age of proofreaders is 36.2 years, and the standard deviation is 3.7 years. Assu
Posted: Wed Jul 06, 2022 12:09 pm
At a large publishing company, the mean age of proofreaders is36.2 years, and the standard deviation is 3.7 years.
Assume the variable is normally distributed. If a proofreaderfrom the company is randomly selected, find the probability thathis or her age will be between 34.2 and 35.9 years.
P(34.2<x<35.9)
If a random sample of 15 proofreaders is selected, find theprobability that the mean age of the proofreaders in the samplewill be between 34.2 and 35.9 years.
Assume the variable is normally distributed. If a proofreaderfrom the company is randomly selected, find the probability thathis or her age will be between 34.2 and 35.9 years.
P(34.2<x<35.9)
If a random sample of 15 proofreaders is selected, find theprobability that the mean age of the proofreaders in the samplewill be between 34.2 and 35.9 years.