A Food Marketing Institute found that 33% of householdsspend more than $125 a week on groceries. Assume thepopulation proportion is 0.33 and a simple random sampleof 366 households is selected from the population. What isthe probability that the sample proportion of householdsspending more than $125 a week is less than 0.31?Note: You should carefully round any z-values you calculateto 4 decimal places to match wamap's approach andcalculations.Answer(Enter your answer as a numberaccurate to 4 decimal places.)

Answered: Image /qna-images/answer/fe41f6be-c547-402f-9000-6ff4b78a8023.jpg

Answered: A Food Marketing Institute found that…

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 approximately 11% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 111 grocery shoppers to investigate their behavior. What is the probability that the sample proportion exceeds 0.08? Note: You should carefully round any intermediate values you calculate to 4 decimal places to match wamap's approach and calculations.Answer = (Enter your answer as a number accurate to 4 decimal places.) Based on past experience, a bank believes that 7.5 % of the people who receive loans will not make payments on time. The bank has recently approved 220 loans.What must be true to be able to approximate the sampling distribution with a normal model? Before proceeding, think about whether the conditions have been met.What are the mean and standard deviation of the sampling distribution of the proportion of people who will not make payments on time in samples of 220?mean, as a decimal…

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