12.1.49Question HelpIn a poll, 800 adults in a region were asked about their online vs. in-store clothes shopping. One finding was that 41% of respondents never clothes-shop online. Find andinterpret a 95% confidence interval for the proportion of all adults in the region who never clothes-shop online.Click here to view page 1 of the table of areas under the standard normal curve.Click here to view page 2 of the table of areas under the standard normal curve.The 95% confidence interval is fromto(Round to three decimal places as needed.) 12.2.79Question HelpThe number of successes and the sample size for a simple random sample from a population are given below.x = 8, n = 40, Ho:p= 0.4, Ha:p<0.4, a = 0.01a. Determine the sample proportion.b. Decide whether using the one-proportion z-test is appropriate.c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test.Click here to view a table of areas under the standard normal curve for negative values of z.Click here to view a table of areas under the standard normal curve for positive values of z.a. The sample proportion is 0.2.(Type an integer or a decimal. Do not round.)b. Is it appropriate to use the one-proportion z-test?YesNoc. Determine the test statistic, if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer.O A.(Round to two decimal places as needed.)O B. The one-proportion z-test is not appropriate.

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In a poll, 800 adults in a region were asked about their online vs. in-store clothes shopping. One finding was that 41% of respondents never clothes-shop online. Find and interpret a 95% confidence interval for the proportion of all adults in the region who never clothes-shop online. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The 95% confidence interval is from to (Round to three decimal places as needed.)

In a poll, 800 adults in a region were asked about their online vs. in-store clothes shopping. One finding was that 41% of respondents never clothes-shop online. Find and interpret a 95% confidence interval for the proportion of all adults in the region who never clothes-shop online. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The 95% confidence interval is from to (Round to three decimal places as needed.)

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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