(60)A researcher hypothesized that there was an association between smoking and lung disease. The following data...

(60)A researcher hypothesized that there was an association between smoking and lung disease. The following data were observed:

Smoking Status	Disease Status
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease
smoker	disease free
smoker	disease free
smoker	disease free
non-smoker	disease
non-smoker	disease
non-smoker	disease free
non-smoker	disease free
non-smoker	disease free
non-smoker	disease free
	disease free
	disease free

1. Create a Contingency Table to represent these data
1. The Following results were obtained in R:

Pearson's Chi-Squared test with Yates' Community correction

data: smoke and disease

X-squared = 3.0387, df= 1, p-value = 0.0813

State the Null and Alternative Hypothesis

c. What is the critical Chi-square value for this test at the alpha = 0.05 level?

d. State your conclusion for this problem?

Expert Solution

orchestra answered 3 years ago

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