The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 5.1 years. At a = 0.06, is there enough evidence to reject the claim that smokers to quit smoking permanently is 13 years? Complete parts (a) through (e). 8.1 21.1 15.8 11.8 7.4 18.3 19.9 21.6 10.1 9.5 20.1 17.5 9.1 18.5 7.3 15.2 16.9 16.8 17.6 14.8 8.1 11.6 11.9 13.1 10.8 19.3 14.3 22.7 7.7 16.4 22.2 21.8 (a) Identify the claim and state the null hypothesis and alternative hypothesis. OA. Ho: ≥ 13 (claim) H₂H<13 O C. Ho: μ> 13 (claim) H₂ μs 13 OF. Ho: ≤13 (claim) H₂:μ> 13 OD. Ho: > 13 Haus 13 (claim) (b) Identify the standardized test statistic. Use technology. z = (Round to two decimal places as needed.) (c) Find the P-value. Use technology. OB. Ho: #13 (claim) H₂p=13 OE. Hop=13 (claim) Ha: #13
The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 5.1 years. At a = 0.06, is there enough evidence to reject the claim that smokers to quit smoking permanently is 13 years? Complete parts (a) through (e). 8.1 21.1 15.8 11.8 7.4 18.3 19.9 21.6 10.1 9.5 20.1 17.5 9.1 18.5 7.3 15.2 16.9 16.8 17.6 14.8 8.1 11.6 11.9 13.1 10.8 19.3 14.3 22.7 7.7 16.4 22.2 21.8 (a) Identify the claim and state the null hypothesis and alternative hypothesis. OA. Ho: ≥ 13 (claim) H₂H<13 O C. Ho: μ> 13 (claim) H₂ μs 13 OF. Ho: ≤13 (claim) H₂:μ> 13 OD. Ho: > 13 Haus 13 (claim) (b) Identify the standardized test statistic. Use technology. z = (Round to two decimal places as needed.) (c) Find the P-value. Use technology. OB. Ho: #13 (claim) H₂p=13 OE. Hop=13 (claim) Ha: #13
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Transcribed Image Text:The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 5.1 years. At a = 0.06, is there enough evidence to reject the claim that the mean time it takes
smokers to quit smoking permanently is 13 years? Complete parts (a) through (e).
8.1
21.1 15.8 11.8 16.9 16.8 17.6 14.8
7.4 18.3 19.9 21.6 8.1 11.6 11.9 13.1
10.1 9.5 20.1 17.5 10.8 19.3 14.3 22.7
9.1 18.5 7.3
15.2 7.7
16.4 22.2 21.8
(…)
(a) Identify the claim and state the null hypothesis and alternative hypothesis.
O A. Ho: μ≥ 13 (claim)
O B. Ho: μ#13 (claim)
H₂: μ = 13
O C. Ho: μ> 13 (claim)
Ha: μ≤13
Ha: μ< 13
O D. Ho: μ> 13
O E. Ho: μ13 (claim)
H₂H13
OF. Ho: u≤ 13 (claim)
Ha: μ> 13
Ha: μ≤ 13 (claim)
(b) Identify the standardized test statistic. Use technology.
Z= (Round to two decimal places as needed.)
(c) Find the P-value. Use technology.
P= (Round to three decimal places as needed.)
(d) Decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim at the 6% level of significance.
O A. Reject Ho. There is not sufficient evidence to reject the claim that the mean time it takes smokers to quit smoking
permanently is 13 years.
O B. Fail to reject Ho. There is not sufficient evidence to reject the claim that the mean time it takes smokers to quit smoking
permanently is 13 years.
O C. Reject Ho. There is sufficient evidence to reject the claim that the mean time it takes smokers to quit smoking
permanently is 13 years.
O D. Fail to reject Ho. There is sufficient evidence to reject the claim that the mean time it takes smokers to quit smoking
permanently is 13 years.
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