We are interested in conducting a study to determine the percentage of voters of a state would vote for the incumbent governor. what is the minimum sample size needed to estimate the population proportion with a margin of error of .05 or less at 95% confidence? hint: use a planning proportion of p*=0.50 a. 200. b. 100. c. 385. d. 58.

Which expression gives the exact value of x?

Classify the following number. −9.070707…

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95