Question

The superior of a product line belives that the average time to assemble an electronic component is 14 min. Assume that assembly time is normaly distributed with a standard deviation of 3.4 minutes. The supervisor times the assembly of 14 components and finds that the average time for competition is 11.6.
What are approciate null and alternativ hypotheses?
Which is most accurate

1.Reject the null hypothesis at a<0.10

2. Fail to reject the null hypothesis at a< 0.10 or a=0.10

3. reject the null hypothesis at a=0.01

Reject null hyp at a=0.023, but not a=0.05

Answer 1