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A confidence interval is...

A range of values likely to include the population parameters

The values that define the range of values likely to include the population parameters

The probability value associated with the range of values likely to include the population parameters

None of these options

The confident limits are...

The values that define the range of values likely to include the population parameters

A range of values likely to include the population parameters

The probability value associated with the range of values likely to include the population parameters

None of these options

The confidence level is...

The probability value associated with the range of values likely to include the population parameters

The values that define the range of values likely to include the population parameters

A range of values likely to include the population parameters

None of these options

Which of the following is an example of a confidence interval?

13.43 to 31.47

13.43 and 31.47

13.43%

13.43

Which of the following is an example of confidence limits?

13.43 and 31.47

13.43 to 31.47

13.43%

13.43

Which of the following is an example of a confidence level?

13.43%

13.43 to 31.47

13.43 and 31.47

13.43

A sample is...

A subset taken from a population used to make inferences about the total group

Any total group of people, things, or events that are the target of interest in a research study

A subset of people from a larger population of people

The total number of people of any group who are the target of interest in a research study

The reason we use samples for conducting research instead of populations is..

It would take too much time to reach the entire population

It would be too costly to reach the entire population

It is impossible to access every member of the population

All of these options

According to the central limit theorem, the sampling distribution of sample means forms a normal distribution when...

The sample size of your sample distributions is 30 or greater

The number of samples in your sampling distribution is 30

There are 30 sample means from a population

The sample size is 30 and there are 30 sample means

Also, according to the central limit theorem...

The standard deviation divided by sqrt(N) equals the standard error of the mean

The standard deviation is equal to the population standard deviation

The sampling distribution of the standard deviations equals the population standard deviation

The standard deviation equals the standard error of the mean

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