Sampling Distribution

What name refers to the standard deviation of the sampling distribution?

• sampling deviation

• mean deviation

• sampling error

• standard error

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 64 data values with a mean between 195 and 200?

• 41%%

• 48%

• 1.5%

• 0.5%

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 100 data values with a mean greater than 202?

• 45%

• 36%

• 25%

• 16%

The mean and standard deviation of a population are 200 and 20, respectively. Sample size is 25. 
What is the variance of the sampling distribution?

• 200

• 16

• 25

• 4

What is the relationship between the mean of the population and the mean of the sampling distribution of the sample means?

• the mean of the population is greater than the mean of the sampling distribution of the sample means.

• the mean of the population is lesser than the mean of the sampling distribution of the sample means.

• the mean of the population is equal to the mean of the sampling distribution of the sample means.

• the mean of the population is not equal to the mean of the sampling distribution of the sample means.

• 50

• 25

• 20

• 5

• 5

• 0.91

• 0.71

• 0

The population mean age of the residents in a certain city is 56.12 years with a standard deviation of 15.3 years. A group of 2000 residents from a certain barangay in the city is taken as a sample. If the population of the city 150 000, find the mean of the sampling distribution of the sample mean of the residents’ ages.

• 150 000

• 2 000

• 15.3

• 56.12

The population mean age of the residents in a certain city is 56.12 years with a standard deviation of 15.3 years. A group of 2000 residents from a certain barangay in the city is taken as a sample. If the population of the city 150 000, find the standard deviation of the sampling distribution of the residents’ ages.

• 150 000

• 0.34

• 0.5

• 56.12

The mean and standard deviation of a population are 400 and 40, respectively. Sample size is 25. 
What is the mean of the sampling distribution?

• 400

• 40

• 25

• 8