T F It is possible to get a sampling distribution for the si

T F It is possible to get a sampling distribution for the simple standard deviation. Sampling distribution for sample proportion is used for a categorical variable. Randomization condition says that the samples must be randomly taken. 10% condition says that the sample size must be greater than 10% of the population size. Nearly Normal condition says that the population distribution must be Normal. Success/Failure condition says that both np and n(1-p) must be larger than 10.

Solution

e) True, The distribution of the standard deviation is positively skewed for small N but is approximately normal if N is 25 or greater. Thus, procedures for calculating the area under the normal curve work for the sampling distribution of the standard deviation as long as N is at least 25 and the distribution is approximately normal.

f)   True, the proportion is used for categorical variable.

g)   True.

h)   False, 10% condition says that the sample size must be less than 10% of the population size.

i)    False, nearly normal means there should be no extreme outliers.

j)    False, Success/Failure means there must be only two outcomes, like fail/pass, true/false etc.