A population has a mean u 90 and a standard deviation a 18. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=81. Cm (Simplify your answer) (Simplify your answer)

Find the standard deviation for the given sample data. 2, 5, 9, 13, 17, 20

Find the sample standard deviation. 2, 6, 15, 9, 11, 22, 1, 4, 8, 19 Send data to Excel O 2.1 0 7.1 0 6.8 Continue

The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​ range, mean,​ variance, and standard deviation of the sample data set.   12​, 20​, 23​, 14​, 18​, 18​, 19​, 18​, 15​, 19   1) The range is ______ 2) The mean is ______ 3) The variance is ________

K The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance, and standard deviation of the population data set. 2, 10, 15, 4, 12, 9, 13, 10, 5, 7 The range is 13. (Simplify your answer.) The population mean is 8.7. (Simplify your answer. Round to the nearest tenth as needed.) The population variance is (Simplify your answer. Round to the nearest tenth as needed.)

Find the range, the standard deviation, and the variance for the givien samples. Round non integer results to the nearest tenth. 2 ,6,8,10,12,15,17

only answer D please

Find the sample variance and standard deviation. 6,51,11,51,38,24,34 Choose the correct answer below. Fill in the answer box to complete your choice. ​(Round to one decimal place as​ needed.) s= o=

A  Find the standard error of the mean for each sampling situation (assuming a normal population).  (Round your answers to two decimal places). 1.  O=56, n=4 2. O=56, n=16 3.  O=56, n=64 B.  What happens to the standard error each time you quadruple the sample size? The standard error is ________ by half.

What would the p-value be?