Would the margin of error be larger or smaller for 80% confidence? explain.
a. to be less confident, the interval needs to contain the true proportion more often, so the margin of error would be smaller.
b. to be less confident, the interval needs to contain the true proportion more often, so the margin of error would be larger.
c. to be less confident, the interval needs to contain the true proportion less often, so the margin of error would be smaller.
d. to be less confident, the interval needs to contain the true proportion less often, so the margin of error would be larger.