Visit to the Physician 0-1 2-4 5 and Above Total Smoker 20 60 80 Nonsmoker 110 90 40 Total Test at the 1% significance level if smoking and visits to the physician are related for all persons. Step 1: State the 2 hypotheses Step 2: Select the distribution and specify the a-value. Distribution: Level of Significance: Step 3: Find the citical region. df =

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The following table gives the two-way classification of 400 randomly selected persons based on their status as a smoker or a non-smoker and on the number of visits they made to their physicians last year. The continuation is in the photo.
Visit to the Physician
0-1
2-4
5 and Above
Total
Smoker
20
60
80
Nonsmoker
110
90
40
Total
Test at the 1% significance level if smoking and visits to the physician are related for all
persons.
Step 1: State the 2 hypotheses
Step 2: Select the distribution and specify the a-value.
Distribution:
Level of Significance:
Step 3: Find the critical region.
df =
9.210
Critical value:
Decision rule:
Step 4: Calculate the test statistics.
Compute for expected frequencies:
e11 =
e12 =
e13=
e21 =
e22 =
e23=
Compute for x2
Step 5: Make a decision.
目
Transcribed Image Text:Visit to the Physician 0-1 2-4 5 and Above Total Smoker 20 60 80 Nonsmoker 110 90 40 Total Test at the 1% significance level if smoking and visits to the physician are related for all persons. Step 1: State the 2 hypotheses Step 2: Select the distribution and specify the a-value. Distribution: Level of Significance: Step 3: Find the critical region. df = 9.210 Critical value: Decision rule: Step 4: Calculate the test statistics. Compute for expected frequencies: e11 = e12 = e13= e21 = e22 = e23= Compute for x2 Step 5: Make a decision. 目
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