The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At a = 0.10, can you conclude that the number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi-square independence test by completing parts (a) through (e) below. Number of times tried to quit before habit-free e 4 or more Gender 2-3 Male Female 273 146 258 139 147 79 (a) Identify the claim and state Ho and Ha. Họ: The number of times former smokers tried to quit is independent of gender. Ha: The number of times former smokers tried to quit is dependent on gender. Which hypothesis is the claim? V Alternative hypothesis O Null hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. Enter vour answer in the answer h ox and then click Check Answer

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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(c) Calculate the test statistic.

d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.

The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At a = 0.10, can you conclude that the
number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi-square independence test by completing parts (a) through (e) below.
Number of times tried to quit before habit-free
4 or more
Gender
1
2-3
Male
273
258
147
Female
146
139
79
.....
(a) Identify the claim and state H, and Ha.
Ho: The number of times former smokers tried to quit is independent of gender.
Ha: The number of times former smokers tried to quit is dependent on gender.
Which hypothesis is the claim?
Alternative hypothesis
Null hypothesis
(b) Determine the degrees of freedom, find the critical value, and identify the rejection region.
Calculate the degrees of freedom.
df - 2
Enter your answer in the answer box and then click Check Answer.
Transcribed Image Text:The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At a = 0.10, can you conclude that the number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi-square independence test by completing parts (a) through (e) below. Number of times tried to quit before habit-free 4 or more Gender 1 2-3 Male 273 258 147 Female 146 139 79 ..... (a) Identify the claim and state H, and Ha. Ho: The number of times former smokers tried to quit is independent of gender. Ha: The number of times former smokers tried to quit is dependent on gender. Which hypothesis is the claim? Alternative hypothesis Null hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. df - 2 Enter your answer in the answer box and then click Check Answer.
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