QUESTION 9

Using the p-value method of hypothesis testing test the following claim at the

a = 0.05

significance level.

. Claim: Less than 40% of students are STEM majors.

• Data: In a sample of 15 students 3 of them are STEM majors.

Of the following choices, which would be the best way to report the results of the hypothesis test.

1. Less than 40% of students are STEM majors (p= .04723, Exact Binomial Test)

2. Less than 40% of students are STEM majors (p= .02711, Exact Binomial Test).

3. Less than 40% of students are STEM majors (p=09050, Exact Binomial Test).

4. We had expected less than 40% of students to be STEM majors. In our survey of 15 students, 3 were STEM majors (20%) and this was not

statistically significant (p = .09050, Exact Binomial Test).

5. We had expected less than 40% of students to be STEM majors. In our survey of 15 students, 3 were STEM majors (20%) and this was not

statistically significant (p = .0096, Exact Binomial Test).

6. We had expected less than 40% of students to be STEM majors: However, in our survey of 15 students, 3 were STEM majors (20%) which

contradicted our expectations.