**Problem Statement:**Based on a smartphone survey, assume that 43% of adults with smartphones use them in theaters. In a separate survey of 243 adults with smartphones, it is found that 103 use them in theaters.**Questions:**a. If the 43% rate is correct, find the probability of getting 103 or fewer smartphone owners who use them in theaters.b. Is the result of 103 significantly low?**Solution Guide:**- To solve part (a), calculate the probability using the binomial distribution formula. You will need to use the binomial probability formula or a statistical software/calculator to find the cumulative probability.- For part (b), evaluate if the result of 103 is significantly lower than expected by comparing the probability found in part (a) with a significance level (commonly 0.05).**Answer Prompt:**a. If the 43% rate is correct, the probability of getting 103 or fewer smartphone owners who use them in theaters is [Box for answer input]. *(Round to four decimal places as needed.)*

We have given that Sample size n= 243 Favorable cases x=104 Success of probability p= 0.43

Answered: Based on a smartphone survey, assume…

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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Based on a smartphone survey, assume that 42% of adults with smartphones use them in theaters. In a seperate survey os 221 adults, it is found that 91 use them in theaters. A. If the 42% rate is correct, find the probability of getting 91 or fewer smartphone owners who use them in theaters. B. Is the result of 91 low?
Based on a smartphone survey, assume that 43% of adults with smartphones use them in theaters. In a separate survey of 241 adults with smartphones, it is found that 101 use them in theaters. a. If the 43% rate is correct, find the probability of getting 101 or fewer smartphone owners who use them in theaters. b. Is the result of 101 significantly low?
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