i In the same test the null hypothesis will be rejected at t

i. In the same test, the null hypothesis will be rejected at the 10% level

ii. The sample used had a mean that was 12.5

iii. There is no evidence at the 5% level that the true mean is less than 12.5.

(a) i only

(b) ii only

(c) iii only

(d) i and ii only

(e) i, ii, and iii

(f) None of the above

Solution

We reject null if p-value is less than 0.05, here we failed to reject null => p-value > 0.05

i) may or may not be true. we dont know if p-value is less than 0.1

ii) We dont know this

iii) true, that\'s what we conclude from failure to reject null

(c) iii only