Stats: Unit 7 Review

Before a nationwide election, a polling company is trying to predict who will win. Which choice is the best representation of a statistic they may obtain?

• A selection of voters over age 50.

• All voters.

• The percentage of voters in favor of the candidate.

• 53% of a selection of voters support the candidate.

Tags

CCSS.HSS.IC.B.3

A restaurant chain wanted to find out how the customer experience was in a particular store.

Which choice best represents a statistic they may obtain?

• The percentage of all customers that reported a positive experience.

• The percentage of customers surveyed that reported a positive experience.

• All customers.

• A random selection of customers that were surveyed.

Tags

CCSS.HSS.IC.B.3

A mayor wanted to see if the people in the town thought they were doing a good job.

Which choice best represents a statistic they may obtain?

• The percentage of all townspeople who believe the mayor is doing a good job.

• The percentage of townspeople surveyed who believe the mayor is doing a good job.

• All townspeople.

• A random selection of 100 townspeople.

A survey company was trying to see if people in a state thought the pollution was too high.

Which choice best represents the parameter of interest?

• All people in the state.

• Percentage of all people in the state who thought the pollution was too high.

• 500 randomly selected residents of the state.

• 71% of the residents surveyed thought the pollution was too high.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents the population of interest?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

• Population Mean

• Mean of the Sampling Distribution of X-bar

• Sample Mean

• Proportion

Select the correct description

• Standard Deviation of the Sampling Distribution of Sample Means

• Standard Deviation

• Population Standard Deviation

• Sample Standard Deviation

Select the correct description

• Average Percent

• Population Proportion

• Sample Proportion

• Percent Slope of a Distribution

Select the correct description

• Population Mean

• Proportion

• Sample Mean

• Population Median

Tags

CCSS.6.SP.A.3

Sigma of P-Hat

• Population Standard Deviation

• Standard Deviation of the Sampling Distribution of Sample Means

• Sample Percents of the Standard Deviation

• Standard Deviation of the Sampling Distribution of Sample Proportions