Solution Found!
In the hospital study cited in Exercise 19, the mean noise
Chapter 7, Problem 22(choose chapter or problem)
QUESTION:
In the hospital study cited in Exercise 19, the mean noise level in the 171 ward areas was 58.0 decibels, and the population standard deviation is 4.8. Find the 90% confidence interval of the true mean.
Questions & Answers
QUESTION:
In the hospital study cited in Exercise 19, the mean noise level in the 171 ward areas was 58.0 decibels, and the population standard deviation is 4.8. Find the 90% confidence interval of the true mean.
ANSWER:Step 1 of 9
We are going to use the following expression (the Fourier discrete transform basic equation)