7.70 CABLE TV SUBSCRIPTIONS VS. STREAMING SERVICES. Refer to the 2018CNBC All American Survey discussed in Exercise 6.460. Recall that a poll wasconducted on a representative sample of 800 US adults in order to investigatethe decline in cable and satellite TV subscriptions. For this sample, 160 adultsrevealed that they are "cord cutters," (i.e., they canceled their cable/satellite TVservice and now only use a video streaming service like Netflix or Hulu). Recallthat a cable TV executive claims that p, the true proportion of all US adults whoare "cord cutters," is only .10. You desire to test this claim using a = .05.a. Write Ho and Ha for this test in symbols and in the problem's context.b. Calculate the test statistic.c. Give the rejection region for the test.d. Calculate the p-value for the test.e. Write the conclusion in the problem's context.

Introduction: Denote p as the true proportion of adults in the country who are “cord cutters”.

Answered: CABLE TV SUBSCRIPTIONS VS. STREAMING…

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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As a destination marketing director, you found that TV executives used the guideline that 25% of the viewers were watching Fox cable network, 22% watching NBC and CBS, and 19% watching ABC. The remaining 12% were watching other cable networks such as CNN and MSNBC on a weekday night. A random sample of 500 viewers in the D.C. metro area last Tuesday night showed 109 homes were tuned in to the Fox station, 125 homes tuning in to NBC affiliate, 100 homes tuning in to CBS affiliate and 81 homes tuning in to ABC affiliate. 85 homes were watching CNN and NSNBC cable stations. At the 0.05 significant level, can we conclude that the guideline is still reasonable?

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