Question

In a sample of 400 parts manufactured by a factory, the number of defective parts were found to be 30. The company, however, claimed that at most 5% of their produce is defective. We wish to test the company's claim.

Answer the next 3 questions.

1. Is the hypothesis: right-tailed, left tailed, or two-tailed?

2. True or False. We fail to reject the Null hypothesis at 5% level of significance.

3. True or False. We do not have enough evidence to reject the Null Hypothesis at 1% level of significance.

Answer 1

1)right-tailed test

2)

False ; as p vlaue is less than 0.05 level we reject nul hypothesis

3) true as p value is greater than 0.01 level We do not have enough evidence to reject the Null Hypothesis at 1% level of significance.

answered by: anonymous