4. Management at a local grocery store is gathering data about the preference of customers forself-check-out lanes. They are willing to transition more lanes to self-checkout if more than 70%of customers prefer, or are willing to use, this method of checkout. They gather data from arandom sample of 255 regular shoppers at this store and find that 184 of them are willing to use,or even prefer, a self-checkout option. Is this enough evidence for the store to transition morelanes to self-checkout options? Work at a a=.01 level of significance.Step 1: State Hypotheses (make sure you use the right symbol, the right signs for this problem, andhave the right numerical value for the hypothesis)H₁: p=.70H₁: p<.70Step 2: Test Statistic (copy the correct formula from the choices at the beginning of this assignment.Show all your values plugged in. Show your final answer, rounded to two decimal places.)

given data claim : p > 0.70n = 255x = 184α = 0.01

Answered: 4. Management at a local grocery store…

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 the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National Institutes of Health (NIH), 42% of college students nationwide engage in “binge drinking” behavior, having 5 or more drinks in one occasion during the past two weeks. A college president wonders if the proportion of students enrolled at her college that binge drink is actually different than the national proportion. In a commissioned study, 364 students are selected randomly from a list of all students enrolled at the college. Of these, 136 admitted to having engaged in binge drinking. Calculate the statistic for this sample. Calculate the standard error for this sample. Verify that we can use a normal distribution for this sample. By hand calculate a 90% confidence interval for the proportion of all students at this college that engage in binge drinking. Show all work. Interpret the results of your confidence interval in the context of the…
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