Answer Happy

12.10c
The number of successes and the sample size for a simple random sample from a population are given below. x=30, n = 50, H₁: p=0.7, H₂: p<0.7, 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 specified hypothesis test. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. B. The one-proportion z-test is not appropriate. Identify the critical value(s), if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. OA. ±²α/2 = ± OB. Zα = C. - Zα = 0.62 (Round to two decimal places as needed.) O D. The one-proportion z-test is not appropriate. (Round to two decimal places as needed.) two decimal places as needed.) (Round