a T F Confidence interval can be used to test one tailed hyp

a) T F Confidence interval can be used to test one tailed hypothesis

b) T F Type-I error is the probability to reject (H0) ! when it is true

c) T F p-value can be greater than 1

d) T F Central limit theorem (CLT) gives the distribution of sample mean

Solution

a)

False, because confidence interval always is for a two tailed test

b)

True , that is definition Error 1 reject Ho , when Ho is true

c)

No, because p-value is a probability ( the probability of reject Ho)

d)

True, if you know the CLT always give us a sample mean