A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 5 of 8: Find the degrees of freedom associated with the test statistic for this problem.

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A new vaccination is being used in a laboratory-experiment to investigate whether it is effective. There are 258 subjects in the study. Is there
sufficient evidence to determine if vaccination and disease status are related?
Vaccination Status Diseased
Not Diseased
Total
Vaccinated
55
62
117
Not Vaccinated
70
71
141
Total
125
133
258
Copy Data
Step 6 of 8: Find the critical value of the test at the 0.025 level of significance. Round your answer to three decimal places.
Transcribed Image Text:A new vaccination is being used in a laboratory-experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 6 of 8: Find the critical value of the test at the 0.025 level of significance. Round your answer to three decimal places.
A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 258 subjects in the study. Is there
sufficient evidence to determine if vaccination and disease status are related?
Vaccination Status
Diseased
Not Diseased
Total
Vaccinated
55
62
117
Not Vaccinated
70
71
141
Total
125
133
258
Copy Data
Step 5 of 8: Find the degrees of freedom associated with the test statistic for this problem.
Transcribed Image Text:A new vaccination is being used in a laboratory experiment to investigate whether it is effective. There are 258 subjects in the study. Is there sufficient evidence to determine if vaccination and disease status are related? Vaccination Status Diseased Not Diseased Total Vaccinated 55 62 117 Not Vaccinated 70 71 141 Total 125 133 258 Copy Data Step 5 of 8: Find the degrees of freedom associated with the test statistic for this problem.
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