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Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 3bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 3bsc

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# Degrees of Freedom and Critical Value For the hypothesis ISBN: 9780321836960 18

## Solution for problem 3BSC Chapter 11.3

Elementary Statistics | 12th Edition

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Problem 3BSC

Degrees of Freedom and Critical Value? For the hypothesis test in Exercise, the test statistic is 3.062. Find the number of degrees of freedom used to find the critical value, then find the critical value. Assume a 0.05 significance level. Exercise Smoking Cessation? The accompanying table summarizes successes and failures when subjects used different methods when trying to stop smoking. The determination of smoking or not smoking was made five months after the treatment was begun, and the data are based on results from the Centers for Disease Control and Prevention. If we test the claim that success is independent of the method used, the TI-83/84 Plus calculator provides a ?P?-value of 0.216 (rounded). What does the ?P?-value tell us about that claim? N N N i i i c c c o o o t t t i i i n n n e e e P I G a n t h u c a m h l e r S m o 1 2 9 k 9 6 5 i 1 3 n g N o t S m 5 5 2 o 9 7 7 k i n g

Step-by-Step Solution:
Step 1 of 3

Solution 3BSC Step1: From the above given problem we have, Nicotine gum Nicotine patch Nicotine inhaler smoking 191 263 95 Not smoking 59 57 27 Step1: First let us understand what is degrees of freedom, “the number of independent values or quantities which can be assigned to a statistical distribution.” Our aim is to find the degrees of freedom, it can be calculated by using the formula df = (r-1)(c-1) Where, r = number of categories in row variable. c = number of categories in column variable. Now, df = (2-1)(3-1) = 1*2 = 2 By using chi square table we can find the critical value of using 2 degrees of freedom with 0.05 level of significance. = 5.991 Therefore the critical value of is = 5.991

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

The answer to “Degrees of Freedom and Critical Value? For the hypothesis test in Exercise, the test statistic is 3.062. Find the number of degrees of freedom used to find the critical value, then find the critical value. Assume a 0.05 significance level. Exercise Smoking Cessation? The accompanying table summarizes successes and failures when subjects used different methods when trying to stop smoking. The determination of smoking or not smoking was made five months after the treatment was begun, and the data are based on results from the Centers for Disease Control and Prevention. If we test the claim that success is independent of the method used, the TI-83/84 Plus calculator provides a ?P?-value of 0.216 (rounded). What does the ?P?-value tell us about that claim? N N N i i i c c c o o o t t t i i i n n n e e e P I G a n t h u c a m h l e r S m o 1 2 9 k 9 6 5 i 1 3 n g N o t S m 5 5 2 o 9 7 7 k i n g” is broken down into a number of easy to follow steps, and 193 words. The full step-by-step solution to problem: 3BSC from chapter: 11.3 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. This full solution covers the following key subjects: smoking, used, test, critical, Find. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. Since the solution to 3BSC from 11.3 chapter was answered, more than 394 students have viewed the full step-by-step answer.

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