ne figurebeforeUse OnlineCoupons17.05%21.61%17.05%4.96%4.96%Check Price OnlineBefore Shopping4.96%4.96%Use a Smart Phoneto Save Money A survey of shopping habits found the percentage of respondents that use technology for shopping as shown in the figureto the right. For example, 17.05% only use online coupons; 21.61% use online coupons and check prices online beforeshopping, and so on. Use the figure to complete parts a through ga. What is the probability that a shopper will check prices online before shopping?The probability is 0.4858(Round to four decimal places as needed)b. What is the probability that a shopper will use a smart phone to save money?The probability is(Round to four decimal places as needed.)Use OnlineCoupons17.05%21.61%17.05%4.96%LeC4.96%

Answered: A survey of shopping habits found the…

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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According to a 2009 Reader's Digest article, people throw away about 11% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 79 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.18?Note: Calculate z to two decimal places.Answer = (Enter your answer as a number accurate to 4 decimal places.)
Find the indicated probability and interpret the result. From 1975 through 2020, the mean annual gain of the Dow Jones Industrial Average was 653. A random sample of 34 years is selected from this population. What is the probability that the mean gain for the sample was between 400 and 800? Assume o = 1540. The probability is (Round to four decimal places as needed.) Interpret the result. Select the correct choice and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About OB. About OC. About OD. About % of samples of 46 years will have an annual mean gain between 400 and 800. % of samples of 34 years will have an annual mean gain between 653 and 800. % of samples of 34 years will have an annual mean gain between 400 and 800. % of sampl of 34 years will have an annual mean gain between 400 and 653.
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