Question: In last ques it is 152 seconds Question 6 -Assignment 9 (Chap x 4 ducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Flm (Chapter 7) i Saved CRA CDs Inc. wants the mean
In last ques it is 152 seconds

Question 6 -Assignment 9 (Chap x 4 ducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Flm (Chapter 7) i Saved CRA CDs Inc. wants the mean lengths of the "cuts" on a CD to be 148 seconds (2 minutes and 28 seconds). This will allow the disk jockeys to have plenty of time for commercials within each 10-minute segment. Assume the distribution of the length of the cuts follows a normal distribution with a standard deviation of eight seconds. Suppose that we select a sample of 26 cuts from various CDs sold by CRA CDs Inc. a. What can we say about the shape of the distribution of the sample mean? Sample mean Normal What is the standard error of the mean? (Round the final answer to 2 decimal places.) Standard error of the mean 1.56 seconds. What percentage of the sample means will be greater than 152 seconds? (Round the final answer to 2 decimal places.) Sample means 0.53 % What percentage of the sample means will be greater than 144 seconds? (Round the final answer to 2 decimal places.) Sample means 99.46 % What percentage of the sample means will be greater than 144 but less than 152
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
