PrintThe 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 chiindependence test by completing parts (a) through (e) below.3.GenderMaleNumber of times tried to quit before habit-free a2-32564 or more1501270Female14814181(a) Identify the claim and state H, and H,.Hn: The number of times former smokers tried to quit (1)H,: The number of times former smokers tried to quit (2)Which hypothesis is the claim?O Null hypothesisAlternative hypothesis(b) Determine the degrees of freedom, find the critical value, and identify the rejection region.Calculate the degrees of freedom.d.f. =Find the critical value.(Round to three decimal places as needed.)Which region below is the correct rejection region?O A. X > x%O B. xsx?OC. x2x3O D. x?

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Description: PrintThe 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 bef

Thank you for posting this question! Since it contains multiple sub-parts, I will solve the first three sub-parts for you. To get the remaining sub-parts solved, please resubmit this complete question and mention the sub-parts to be solved. Solution: It is asked to test the claim if the number of times former smokers tried to quit smoking before they were habit free is related to gender. The level of significance is given to be 0.10. Part a) The null and alternative hypotheses are: H0: 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. Thus, the claim is alternative hypothesis. Part b) Degrees of freedom: df = (r-1)*(c-1), where r is the number of rows and c is the number of columns in the given data. Number of rows: r = 2 Number of columns: c = 3 df = (2-1)*(3-1) = 1*2 = 2 The chi-square critical value can be found using MS-Excel as follows: In any empty cell of an excel sheet, type =CHIINV(0.10,2) and hit enter. It gives 4.605170. Rounding this to three decimal places, it becomes 4.605. Part c) Test statistic is required to calculate. Number of times tried to quit before habit-free Total Gender 1 2--3 4 or more Male 270 256 150 676 Female 148 141 81 370 Total 418 397 231 Grand Total= 1046 For that, we first need to find the expected counts using the following formula: The formula of chi square test statistic is as follows: Rounding the above value to three decimal places, it becomes 0.013.

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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 ch independence test by completing parts (a) through (e) below. Gender Male Female Number of times tried to quit before habit-free 2-3 256 141 1 270 148 4 or more 150 81 (a) Identify the claim and state Ho and H, Ho: The number of times former smokers tried to quit (1) H The number of times former smokers tried to quit (2) Which hypothesis is the claim? O Null hypothesis O Alternative hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. df. = Find the critical value. (Round to three decimal places as needed.) Which region below is the correct rejection region? OA. r>r OB. rsr Oc Pr OD. r

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 ch independence test by completing parts (a) through (e) below. Gender Male Female Number of times tried to quit before habit-free 2-3 256 141 1 270 148 4 or more 150 81 (a) Identify the claim and state Ho and H, Ho: The number of times former smokers tried to quit (1) H The number of times former smokers tried to quit (2) Which hypothesis is the claim? O Null hypothesis O Alternative hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. df. = Find the critical value. (Round to three decimal places as needed.) Which region below is the correct rejection region? OA. r>r OB. rsr Oc Pr OD. r

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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