Question
James wanted to know ifat least90% of the students at his university own a car. He randomly sampled500 students and found that440 of them own
James wanted to know ifat least90% of the students at his university own a car. He randomly sampled500 students and found that440 of them own cars.
James conducts a one-proportionhypothesis testat the5% significance level, to test whether the true proportion of students that own a car at this university is greater than90%.
For this test:H0:p=0.9
Ha:p>0.9, which is a right-tailed test.
The test results are:z0=1.491,p-value is = 0.932
Which of the following are appropriate conclusions for this hypothesis test?Select all that apply.
1) We rejectH0.
2) We fail torejectH0.
3) At the5% significance level, the data provide sufficient evidence to conclude the true proportion of students that own a carat this university is greater than90%.
4) At the5% significance level, the data do not provide sufficient evidence to conclude the true proportion of students that own a car at this university is greater than90%.
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