Statistical Questions

Open Ended

Current Event:

Must use your name and must be appropriate for school

Multiple Choice

On what is a confidence interval based?

• Hypothetical data

• Sample data

• Population data

• Assumed data

Multiple Choice

Which of the following is NOT a component of a confidence interval?

• Lower bound

• Upper bound

• Sample mean

• Population mean

Multiple Choice

What is the purpose of constructing confidence intervals?

• To determine the exact value of a parameter

• To know how much confidence we have that the interval captures the parameter

• To find the mean of a data set

• To calculate the standard deviation

Multiple Choice

What is the correct interpretation of a confidence interval?

• It captures the sample mean.

• It captures the sample proportion.

• It captures the parameter.

• It captures the statistic.

Multiple Choice

What is the purpose of calculating a point estimate?

• To find the exact value of the mean

• To estimate the midpoint of the confidence interval

• To determine the range of the data

• To calculate the standard deviation

Multiple Choice

What is the main goal of using a margin of error?

• To find the exact population mean

• To account for sampling variability

• To calculate the standard deviation

• To determine the sample size

Multiple Choice

What is the sample mean symbolized by in the document?

• x̄

• μ

• σ

• n

Multiple Choice

What are the two components needed to create an interval of plausible values for a parameter?

• Point estimate and margin of error

• Mean and median

• Standard deviation and variance

• Range and interquartile range

Multiple Choice

Which of the following best describes a confidence interval?

• A range of values

• A single value

• A fixed point

• A constant number

Poll

Can you:

Interpret a confidence interval.

• Not at all

• With difficulty

• Somewhat

• Very well

Poll

Can you:

Determine the point estimate and margin of error
from a confidence interval.

• Not at all

• With difficulty

• Somewhat

• Very Well

Poll

Can you:

Use confidence intervals to make decisions.

• Not at all

• With difficulty

• Somewhat

• Very Well