Answered: Why did they take my favorite show off…

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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"Why did they take my favorite show off the air?" The answer lies, no doubt, in low Nielsen ratings. What is the powerful rating system, anyway? Of the 92.1 million households in America, Nielsen Media Research randomly samples 4,000 on which to base their ratings. The sampling design is rather complex, but at the last two stages it involves randomly selecting city blocks (or equivalent units in rural areas) and the randomly selecting one household per block to be the Nielsen household. The rating for a program is the percentage of the sampled household that have a TV set on and turned to the program. The share for a program is the percentage of the viewing households that have a TV set turned to the program, where a viewing household is a household that has at least one TV set turned on. a. How many household are equivalent to one rating point? b. Is a share going to be larger or smaller than a rating point? c. For the week of April 19, 1992, "60 Minutes" was the top-rated show, with a rating of 21.7. Explain what this rating means. d. Discuss potential biases in the Nielsen ratings, even with the randomization on the randomisation on the selection of households carefully built in.

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