z= 1.69 (Round to two decimal places as need (c) Find the P-value. Use technology. P= (Round to three decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Related questions
Question
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 6.7
years. At a = 0.01, 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).
15.2 18.4 18.6 16.2 13.9
7.4 20.3 7.8 7.3
10.2 13.1 19.6
20.5 11.4 10.8 13.8
22.9 12.4 16.9 21.5
8.5
11.8
18.9 11.7 15.7
20.1 16.7 17.9
19.1
10.2 17.6 13.9
FI
SIXD
(a) Identify the claim and state the null hypothesis and alternative hypothesis.
OA. Ho: #13 (claim)
2
B. Ho: 213 (claim)
H₂H<13
OC. Ho: >13 (claim)
Hus 13
H₂ = 13
INS
OD. Ho: >13
E. Ho: 13 (claim)
H₂:13
OF. Hous13 (claim)
H₂:μ> 13
H₂: μs 13 (claim)
MI
(b) Identify the standardized test statistic. Use technology.
z= 1.69 (Round to two decimal places as needed.)
(c) Find the P-value. Use technology.
P=
(Round to three decimal places as needed.)
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 6.7 years. At a = 0.01, 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). 15.2 18.4 18.6 16.2 13.9 7.4 20.3 7.8 7.3 10.2 13.1 19.6 20.5 11.4 10.8 13.8 22.9 12.4 16.9 21.5 8.5 11.8 18.9 11.7 15.7 20.1 16.7 17.9 19.1 10.2 17.6 13.9 FI SIXD (a) Identify the claim and state the null hypothesis and alternative hypothesis. OA. Ho: #13 (claim) 2 B. Ho: 213 (claim) H₂H<13 OC. Ho: >13 (claim) Hus 13 H₂ = 13 INS OD. Ho: >13 E. Ho: 13 (claim) H₂:13 OF. Hous13 (claim) H₂:μ> 13 H₂: μs 13 (claim) MI (b) Identify the standardized test statistic. Use technology. z= 1.69 (Round to two decimal places as needed.) (c) Find the P-value. Use technology. P= (Round to three decimal places as needed.)
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