A population has a mean muequals148 and a standard deviation sigmaequals22. Find the mean and standard deviation of the sampling distribution of sample means with sample size nequals57.
The mean is mu Subscript x overbarequals
nothing, and the standard deviation is sigma Subscript x overbarequals
nothing.

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.