An individual in the market for a new cell phone was interested in the proportion of the U.S. population that uses an iPhone. A random sample of 1,234 was obtained and an approximate 95% confidence interval for this situationwas calculated to be (0.42, 0.48). Which of the following statements is the best interpretation of this confidence interval?O a. We are 90% confident that the interval (0.42, 0.48) captures the sample proportion of U.S. residents who use an iPhone.O b. There is a between a 42% and 48% chance that a randomly selected U.S. resident uses an iPhone.OC, 95% of the U.S. residents who use an iPhone falls in the interval (0.42, 0.48).Od. We are 95% confident that the interval (0.42, 0.48) captures the population proportion of U.S. residents who use an iPhone.

The random variable use an iPhone follows normal distribution. We have to interpret the 95%…

Answered: An individual in the market for a new…

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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Come up with your own data for a problem that would ask for a 90% confidence interval utilizing Z. Clearly label your variables.
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