Sampling Distribution Review

These symbols represent the mean and standard deviation for which of the following?

• population

• sampling distribution

• sample

• probability distribution

These symbols represent the mean and standard deviation for which of the following?

• population

• sampling distribution

• sample

• probability distribution

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

• 200

• 25

• 16

• 4

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

• 200

• 25

• 16

• 4

At a particular college, 78% of all students are receiving some kind of financial aid.The school newspaper selects a random sample of 100 students and 72% of the respondents say they are receiving some sort of financial aid. Which of the following is true?

• 78% is a population and 72% is a sample.

• 78% is a parameter and 72% is a statistic

• 72% is a population and 78% is a sample

• 72% is a parameter and 78% is a statistic

The mean and standard deviation of a population are 200 and 20, respectively. 
What is the probability of selecting 25 data values with a mean less than 190?

• 49.38%

• 0.62%

• 0.58%

• 45.82%

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

• 200

• 25

• 16

• 4

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

• sampling deviation

• sampling error

• mean deviation

• standard error

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?

• 34.13%

• 3.98%

• 20.88%

• 15.87%

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

• 25

• 16

• 4