Sampling Distribution Review

What is a sampling distribution?

• The theoretical probability distribution of a statistic, from all possible samples of size n.

• The probability distribution of all data values from a sample of size n.

• The probability distribution of a population of data values.

• Doing a simulation to estimate the shape of the probability distribution of a statistic.

Which of the following is an example of a sampling distribution?

• The probability distribution modeling the population of all roll results of a die.

• The probability distribution modeling the results of a sample of 50 rolls of a die.

• A probability distribution of all possible sample means occurring from samples of size 5.

28% of all Woodrow students believe Monday will be snow day. You take a sample of 50 students and find that 15 of them believe Monday will be a snow day. What does 50 represent? 

• n
• P
• phat
• standard deviation

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

• The Population
• The Sample
• The Sampling Distribution

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

• The Population
• The Sample
• The Sampling Distribution

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

Tags

CCSS.HSS.IC.B.3

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

• The Population

• The Sample

• The Sampling Distribution

Researchers will conduct a study of the television-viewing habits of children. They will select a simple random sample of children and record the number of hours of television the children watch per week. The researchers will report the sample mean as a point estimate for the population mean. Which of the following statements is correct for the sample mean as a point estimator?

• A sample of size 25 will produce more variability of the estimator than a sample of size 50.

• A sample of size 25 will produce less variability of the estimator than a sample of size 50.

Tags

CCSS.HSS.IC.B.4

28% of all Suncoast students believe in Santa. You take a sample of 50 students and find that 15 of them believe in Santa. What does 15/50 represent?

• n

• P

• phat

• standard deviation

Tags

CCSS.HSS.IC.B.4

Which of the following refers to the subset of a population?

• statistic

• variable

• parameter

• sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1