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.
- Is the hypothesis: left tailed, right tailed, two tailed
- True or False. We fail to reject the Null hypothesis at 5% level of significance.
- True or False. We do not have enough evidence to reject the Null Hypothesis at 1% level of significance.