A market research firm conducts telephone surveys with a 38% historical response rate. What is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? In other words, what is the probability that the sample proportion will be at least $ \frac{150}{400} = 0.375 $? Calculate the probability to 4 decimals. Use a z-table.

Defines that p is true proportion of telephone numbers that will cooperate and respond to the…

Answered: A market research firm conducts…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were $444, $447, $470, and $207 O. Compute the mean, median, and mode cost of repair. Compute the mean cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mean cost of repair is $ (Round to the nearest cent as needed.) O B. The mean does not exist. Compute the median cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The median cost of repair is $ (Round to the nearest cent as needed.) O B. The median does not exist. Compute the mode cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode cost of repair is $ (Round to the nearest cent as needed.) O B. The mode does not exist.
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