In a random sample of patients with oropharyngeal cancer ; the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer .

In a random sample of patients with oropharyngeal cancer ; the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer . The study has an alpha of 0.05 and a P value = 0.01.

Question 1:
what is the dependent variable?

Q2; what would be an appropriate test for testing for null hypothesis? Explain?

Q3 : what decision should be made about the null hypothesis? Explain?

Q4 : If this decision is not correct , what potential error could it be??

Solutions

Expert Solution

1) dependent variable = gender

Independent variable = oropharyngeal cancer

2) we use chi square test

null and alternate hypothesis

H0: there is no relationship between gender and type of oropharyngeal cancer

H1: there is relationship between gender and type of oropharyngeal cancer.

3) since p value = 0.01

P value is less than level of significance so we reject the null hypothesis.

4) If this decision is not correct type I error could be occured.

Because type I error = probability of rejecting the null hypothesis when its irue

orchestra answered 1 year ago

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