In a study of the effect of cigarette smoking on the carbon monoxide diffusing capacity (DL) of the lung, researchers found that current smokers had DL readings significantly lower than those of either ex-smokers or nonsmokers. The carbon monoxide diffusing capacities for a random sample of n- 20 current smokers are listed here 103.668 92.195 100.615 102.654 88.502 72.903 122.986 90.952 61.575 90.777 87.917 71.310 108.479 73.254 106.855 90.379 84.023 76.114 82.115 89.222 (a) Do these data indicate that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers? Use a - 0.01. State the null and alternative hypotheses. O Hạ: H- 100 versus H < 100 O HiH- 100 versus H > 100 O Ha: H< 100 versus H: > 100 O Hại H 100 versus H - 100 O Hg: H- 100 versus H: u 100 State the test statistic. (Round your answer to three decimal places.) State the p-value. O p-value < 0.005 O 0.005 < p-value < 0.010 O 0.010 < p-value < 0.025 O 0.025 < p-value < 0.050 O 0.050 < p-value < 0.100 O p-value > 0.100 State the conclusion. O H, is rejected. There is insufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is rejected. There is sufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is not rejected. There is insufficient evidence to condlude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is not rejected. There is sufficient evidence to condude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. (b) Find a 99% one-sided upper confidence bound for the mean DL reading for current smokers. (Round your answer to three decimal places.) Does this bound confirm your condlusions in part (a)? Since u- 100 --Select v in the confidence interval, it is Select-- v that the mean DL reading for current smokers is greater than or equal to 100 DL. This Select v with the conclusion from part (a).
In a study of the effect of cigarette smoking on the carbon monoxide diffusing capacity (DL) of the lung, researchers found that current smokers had DL readings significantly lower than those of either ex-smokers or nonsmokers. The carbon monoxide diffusing capacities for a random sample of n- 20 current smokers are listed here 103.668 92.195 100.615 102.654 88.502 72.903 122.986 90.952 61.575 90.777 87.917 71.310 108.479 73.254 106.855 90.379 84.023 76.114 82.115 89.222 (a) Do these data indicate that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers? Use a - 0.01. State the null and alternative hypotheses. O Hạ: H- 100 versus H < 100 O HiH- 100 versus H > 100 O Ha: H< 100 versus H: > 100 O Hại H 100 versus H - 100 O Hg: H- 100 versus H: u 100 State the test statistic. (Round your answer to three decimal places.) State the p-value. O p-value < 0.005 O 0.005 < p-value < 0.010 O 0.010 < p-value < 0.025 O 0.025 < p-value < 0.050 O 0.050 < p-value < 0.100 O p-value > 0.100 State the conclusion. O H, is rejected. There is insufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is rejected. There is sufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is not rejected. There is insufficient evidence to condlude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. O H, is not rejected. There is sufficient evidence to condude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers. (b) Find a 99% one-sided upper confidence bound for the mean DL reading for current smokers. (Round your answer to three decimal places.) Does this bound confirm your condlusions in part (a)? Since u- 100 --Select v in the confidence interval, it is Select-- v that the mean DL reading for current smokers is greater than or equal to 100 DL. This Select v with the conclusion from part (a).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
22 this question has part a and b
Since ? = 100 ---Select--- falls or does not fall in the confidence interval, it is ---Select--- unlikely or likely that the mean DL reading for current smokers is greater than or equal to 100 DL. This ---Select--- disagrees or agrees with the conclusion from part (a).
Transcribed Image Text:In a study of the effect of cigarette smoking on the carbon monoxide diffusing capacity (DL) of the lung, researchers found that current smokers had DL readings significantly lower than those of either ex-smokers or nonsmokers. The carbon monoxide diffusing capacities for a random sample of n = 20
current smokers are listed here.
90.952
76.114
89.222
90.379
103.668
88.502
72.903
122.986
92.195
61.575
90.777
84.023
87.917
108.479
100.615
71.310
82.115
102.654
73.254
106.855
(a) Do these data indicate that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers? Use a = 0.01.
State the null and alternative hypotheses.
O Ho: u = 100 versus H: u < 100
O H: u = 100 versus H: u > 100
O H: u < 100 versus H: u > 100
O H: u + 100 versus H: u = 100
O H: u = 100 versus H: u + 100
State the test statistic. (Round your answer to three decimal places.)
t =
State the p-value.
O p-value < 0.005
O 0.005 < p-value < 0.010
O 0.010 < p-value < 0.025
O 0.025 < p-value < 0.050
O 0.050 < p-value < 0.100
O p-value > 0.100
State the conclusion.
O H, is rejected. There is insufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers.
O H, is rejected. There is sufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers.
O H, is not rejected. There is insufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers.
O H, is not rejected. There is sufficient evidence to conclude that the mean DL reading for current smokers is significantly lower than 100 DL, the average for nonsmokers.
(b) Find a 99% one-sided upper confidence bound for the mean DL reading for current smokers. (Round your answer to three decimal places.)
Does this bound confirm your conclusions in part (a)?
Since u
100
Select--- v in the confidence interval, it is -Select-- v that the mean DL reading for current smokers is greater than or equal to 100 DL. This --Select--- V with the conclusion from part (a).
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