# Question: X 16 n 20 90 level a Use the

x = 16, n = 20, 90% level.

a. Use the one-proportion plus-four z-interval procedure, as discussed on page 449, to find the required confidence interval.

b. Compare your result with the corresponding confidence interval found in Exercises 11.17–11.22, if finding such a confidence interval was appropriate.

a. Use the one-proportion plus-four z-interval procedure, as discussed on page 449, to find the required confidence interval.

b. Compare your result with the corresponding confidence interval found in Exercises 11.17–11.22, if finding such a confidence interval was appropriate.

## Relevant Questions

x = 3, n = 100, 99% level. a. Use the one-proportion plus-four z-interval procedure, as discussed on page 449, to find the required confidence interval. b. Compare your result with the corresponding confidence interval ...Of what procedure is Procedure 11.2 a special case? Why do you think that is so? x = 3, n = 100, H0: p = 0.04, H0: p ≠ 0.04, α = 0.10 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion z-test to perform the ...A CNN/USA TODAY/ Gallup Poll, conducted in September, 2005, had the headline “Most Americans Believe New Orleans Will Never Recover.” Of 609 adults polled by telephone, 341 said they believe the hurricane devastated the ...Consider a hypothesis test for two population proportions with the null hypothesis H0: p1 = p2. What parameter is being estimated by the a. Sample proportion pˆ1? b. Sample proportion pˆ2? c. Pooled sample proportion ...Post your question