Statistics vs Parameters Concepts

The video tutorial explains the difference between statistics and parameters, emphasizing that statistics are derived from samples while parameters come from entire populations. It provides examples to illustrate how to identify whether a given value is a statistic or a parameter, using scenarios involving National Parks sales, male shoppers' waistlines, Miami home sales, American opinions on drilling, and flight arrival times.

What is the primary difference between a statistic and a parameter?

• A statistic is derived from a sample, while a parameter is from a population.

• Both are derived from populations.

• Both are derived from samples.

• A statistic is derived from a population, while a parameter is from a sample.

Which mnemonic can help you remember the difference between a statistic and a parameter?

• S for sample, S for statistic; P for population, P for parameter.

• S for statistic, P for parameter; S for population, P for sample.

• S for sample, P for parameter; P for population, S for statistic.

• S for statistic, P for sample; P for parameter, S for population.

What must be conducted to obtain a parameter from a population?

• A survey

• A sample

• An experiment

• A census

In the example of National Parks sales receipts, why is the average revenue considered a parameter?

• Because it was derived from every sales receipt in the population.

• Because it was calculated from a random selection.

• Because it was derived from a sample of sales receipts.

• Because it was estimated from a survey.

Why is the average waist size of 60 male shoppers considered a statistic?

• Because it was derived from a sample of 60 shoppers.

• Because it was estimated from a census.

• Because it was calculated from the entire population.

• Because it was calculated from a survey of all shoppers.

In the Miami homes auction example, why is the average sale price a parameter?

• Because it was calculated from all homes sold at auction.

• Because it was estimated from a survey.

• Because it was derived from a random selection.

• Because it was derived from a sample of homes.

Why is the proportion of 500 Americans against oil drilling considered a statistic?

• Because it was derived from the entire population.

• Because it was estimated from a census.

• Because it was derived from a survey of all Americans.

• Because it was calculated from a sample of 500 Americans.

In the flight arrival times example, why is the on-time rate considered a parameter?

• Because it was derived from a sample of flights.

• Because it was estimated from a survey.

• Because it was calculated from every flight that landed.

• Because it was derived from a random selection.