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Use technology to find the p-value. (Round your answer to four decimal places.) p-value = 0.0001 X State your conclusion. Fail to reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Fail to reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. (c) Provide a 95% CI (in ppm) for the difference in mean CO between the smoking and nonsmoking working environments. (Enter your answer using interval notation. Round your numerical values to two decimal places.) (2.59, 7.61) ppm

Use technology to find the p-value. (Round your answer to four decimal places.) p-value = 0.0001 X State your conclusion. Fail to reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Fail to reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. (c) Provide a 95% CI (in ppm) for the difference in mean CO between the smoking and nonsmoking working environments. (Enter your answer using interval notation. Round your numerical values to two decimal places.) (2.59, 7.61) ppm

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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please help finding p-value and (c)

Pulmonary Disease Suppose a 1980 study was conducted whose purpose was to compare the indoor air quality in offices where smoking was permitted with that in offices where smoking was not permitted. Measurements were made of carbon monoxide (CO) at 1:20 p.m. in 40 work areas where smoking was permitted and in 40 work areas where smoking was not permitted. Where smoking was permitted, the mean CO level was 11.5 parts per million (ppm) and the standard deviation CO was 7.4 ppm. Where smoking was not permitted, the mean CO was 6.8 ppm and the standard deviation CO was 2.9 ppm. (Let population 1 be smoking was permitted and population 2 be smoking was not permitted. Use smoking - nonsmoking.)
Transcribed Image Text:Pulmonary Disease Suppose a 1980 study was conducted whose purpose was to compare the indoor air quality in offices where smoking was permitted with that in offices where smoking was not permitted. Measurements were made of carbon monoxide (CO) at 1:20 p.m. in 40 work areas where smoking was permitted and in 40 work areas where smoking was not permitted. Where smoking was permitted, the mean CO level was 11.5 parts per million (ppm) and the standard deviation CO was 7.4 ppm. Where smoking was not permitted, the mean CO was 6.8 ppm and the standard deviation CO was 2.9 ppm. (Let population 1 be smoking was permitted and population 2 be smoking was not permitted. Use smoking - nonsmoking.)
Use technology to find the p-value. (Round your answer to four decimal places.) p-value = 0.0001 X State your conclusion. Fail to reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Fail to reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. (c) Provide a 95% CI (in ppm) for the difference in mean CO between the smoking and nonsmoking working environments. (Enter your answer using interval notation. Round your numerical values to two decimal places.) (2.59, 7.61) ppm X
Transcribed Image Text:Use technology to find the p-value. (Round your answer to four decimal places.) p-value = 0.0001 X State your conclusion. Fail to reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is insufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. Fail to reject Ho. There is sufficient evidence to conclude that the mean CO is significantly different in the two types of working environments. (c) Provide a 95% CI (in ppm) for the difference in mean CO between the smoking and nonsmoking working environments. (Enter your answer using interval notation. Round your numerical values to two decimal places.) (2.59, 7.61) ppm X
Expert Solution
Step 1: Given information

Given that,

Population 1 be smoking was permitted and Population 2 be smoking was not permitted.

x subscript 1 is a random variable for population 1 and x subscript 2 is a random variable for population 2.

For population 1:

The sample size is n equals 40

the sample mean is top enclose x subscript 1 end enclose equals 11.5

the sample standard deviation is s subscript 1 equals 7.4

For population 2:

The sample size is n subscript 2 equals 40

the sample mean is top enclose x subscript 2 end enclose equals 6.8

The sample standard deviation is s subscript 2 equals 2.9

the level of confidence is C L equals 0.95

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Pvalue is incorrect as well as the solutin for (c), it keeps giving me an X saying it's wrong

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