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Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amou monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a = 0.10, can supported? Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Which of the following correctly states Ho and Ha? Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. (b) Use technology to find the critical value(s) and identify the rejection region(s). The critical value(s) is/are to = 1: (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the graph which shows the rejection region. OB. Oc. OD. O A. t< - to, t> to t to - to

Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amou monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a = 0.10, can supported? Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Which of the following correctly states Ho and Ha? Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. (b) Use technology to find the critical value(s) and identify the rejection region(s). The critical value(s) is/are to = 1: (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the graph which shows the rejection region. OB. Oc. OD. O A. t< - to, t> to t to - to

MATLAB: An Introduction with Applications
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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Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a=0.10, can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Which of the following correctly states Ho and H,? Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. (b) Use technology to find the critical value(s) and identify the rejection region(s). The critical value(s) is/are to = : (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the graph which shows the rejection region. OB. Oc. OD. O A. t< - to, t> to t< to - to <t<to t> to Click to select your answer(s). Save for Later
Transcribed Image Text:Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a=0.10, can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Identify the claim and state Ho and Ha. Which of the following correctly states Ho and H,? Ho: Ha: (Type integers or decimals. Do not round.) The claim is the hypothesis. (b) Use technology to find the critical value(s) and identify the rejection region(s). The critical value(s) is/are to = : (Use a comma to separate answers as needed. Round to two decimal places as needed.) Choose the graph which shows the rejection region. OB. Oc. OD. O A. t< - to, t> to t< to - to <t<to t> to Click to select your answer(s). Save for Later
Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a = 0.10, can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. t>to - to <t<to t< -to, t> to t<to -4 0 to -to 0 to -4 to (c) Find the standardized test statistic, t. The standardized test statistic is t= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. V Ho because the standardized test statistic V in the rejection region. (e) Interpret the decision in the context of the original claim. V enough evidence at the % level of significance to V the claim that the mean amount of carbon monoxide in the air in U.S. cities is There parts per million. (Type integers or decimals. Do not round.) Click to select your answer(s).
Transcribed Image Text:Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.32 parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of 66 cities is 2.39 parts per million and the standard deviation is 2.09 parts per million. At a = 0.10, can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. t>to - to <t<to t< -to, t> to t<to -4 0 to -to 0 to -4 to (c) Find the standardized test statistic, t. The standardized test statistic is t= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. V Ho because the standardized test statistic V in the rejection region. (e) Interpret the decision in the context of the original claim. V enough evidence at the % level of significance to V the claim that the mean amount of carbon monoxide in the air in U.S. cities is There parts per million. (Type integers or decimals. Do not round.) Click to select your answer(s).
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