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Essentials of Statistics for The B...

9th Edition
Frederick J Gravetter + 2 others
ISBN: 9781337098120

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for The B...

9th Edition
Frederick J Gravetter + 2 others
ISBN: 9781337098120
To determine

To Determine: The type of example for the average of 2.3 meals.

Answer

Answer: The correct option is b. statistic.

Explanation

Reason for correct answer:

Since, average is taken over sample observations. So, it’s a function of sample observations, therefore average 2.3 is a statistic.

Reason for incorrect answer:

Option a.: Parameter is the function of population observations but we are given average of sample observations.

Option c.: Since, population is not a numerical value, so average 2.3 cannot be example of population.

Option d.: Since, sample is not a numerical value, so average 2.3 cannot be example of sample.

Conclusion:

The correct answer is b. statistic.

Concept

Introduction;

Parameter:

A parameter is a functional unit or a numerical characteristic obtained from a population.

Statistic:

Statistic is a numerical characteristic obtained from a sample. A sample is a subset or part of a population.

Population:

A collection of all outcomes, people or measurements of interest is termed as population.

Sample:

The information about the population is obtained from the sample. That is, a sample is considered to be a subset of the given population.

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