choose the statement that best describes what is meant when we say the sample mean is unbiased when estimating the population mean. A. the standard deviation of the sampling distribution and the...

choose the statement that best describes what is meant when we say the sample mean is unbiased when estimating the population mean. A. the standard deviation of the sampling distribution and the population standard deviation mean b. the sample mean will always equal the population mean c. on average the sample mean is the same as the population mean d. none of these Complete the statement In the hypothesis test the null hypothesis H 0 is the statement of ___ and is always about a _____ A. the research hypothesis; statistics B. the research hypothesis; parameter C. no change; statistic D. no change; parameter