9.4.89Question HelpA researcher examined gross job gains and losses as a percentage of the average of previous and current employment figures. A simple random sample of 20 quartersprovided the net percentage gains (losses are negative gains) for jobs as shown in the accompanying table. Complete parts (a) through (d) below.Click here to view the net percentage jobgain data.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.a. Decide whether, on average, the net percentage gain for jobs exceeds 0.2. Assume a population standard deviation of 0.39. Apply the one-mean z-test with a 1%significance level.State the hypotheses for the one-mean z-test.Ho: H%Ha: H%(Type integers or decimals. Do not round.) -8.2.71Question HelpSome governments have set a safety limit for cadmium in dry vegetables at 0.5 part per million (ppm). Researchers measured the cadmium levels in a random sample ofa certain type of edible mushroom. The accompanying table shows the data obtained by the researchers. Find and interpret a 90% confidence interval for the meancadmium level of all mushrooms of this type. Assume a population standard deviation of cadmium levels in mushrooms of this type of 0.27 ppm. (Note: The sum of thedata is 6.31 ppm.)Click here to view the data.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 90% confidence interval is fromppm toppm.(Round to three decimal places as needed.)

Name: 9.4.89Question HelpA researcher examined gross job gains and losses a
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Description: 9.4.89Question HelpA researcher examined gross job gains and losses as a percentage of the average of previous and current employment figures. A simple random sample of 20 quartersprovided the net percentage gains (losses are negative gains) for job

Since you have asked multiple question, we will solve the first question for you. If you want any specific question to be solved then please specify the question number or post only that question. The null hypothesis isH0:μ=0.2%The alternative hypothesis isH0:μ>0.2%

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a. Decide whether, on average, the net percentage gain for jobs exceeds 0.2. Assume a population standard deviation of 0.39. Apply the one-mean z-test with a 1% significance level. State the hypotheses for the one-mean z-test. Ho: H V Ha:H (Type integers or decimals. Do not round.)

a. Decide whether, on average, the net percentage gain for jobs exceeds 0.2. Assume a population standard deviation of 0.39. Apply the one-mean z-test with a 1% significance level. State the hypotheses for the one-mean z-test. Ho: H V Ha:H (Type integers or decimals. Do not round.)

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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