Fill in the blanks a When computing a confidence interval fo

Fill in the blanks.

a. When computing a confidence interval for µ where we know , we use the ______ distribution when n 30 and the ______ distribution when n < 30
b. When computing a confidence interval for p, we use the _____ distribution
c. When computing confidence intervals for , we use the _____ distribution
d. When doing a hypothesis test for µ where we know , we use the ______ distribution when n 30 and the ______ distribution when n < 30
e. When doing a hypothesis test for p, we use the _____ distribution
f. When doing a hypothesis test for , we use the _____ distribution

Solution

a. When computing a confidence interval for µ where we know , we use the ___z___ distribution when n 30 and the ___t___ distribution when n < 30.

b. When computing a confidence interval for p, we use the __z___ distribution
c. When computing confidence intervals for , we use the ___chi^2__ distribution
d. When doing a hypothesis test for µ where we know , we use the __z____ distribution when n 30 and the ___t___ distribution when n < 30
e. When doing a hypothesis test for p, we use the ___z__ distribution
f. When doing a hypothesis test for , we use the ___F__ distribution