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Chapter 7: Q.2 (page 428)

identify the population, the parameter, the sample, and the statistic in each setting

Unemployment Each month, the Current Population Survey interviews a random sample of individuals in about 55,000U.S. households. One of their goals is to estimate the national unemployment rate. In December 2009,10.0%of those interviewed were unemployed

Short Answer

Expert verified

All individuals in the U.S are the population.

The sample is 55,000U.S households in the population.

The parameter is the unemployment rate.

The statistic is the proportion of people that have been interviewed, that is 10percent is the sample statistic.

Step by step solution

01

Given Information

Each month, the Current populace Survey interviews vs an irregular example of people in around 55,000U.S. family units. One of their objectives is to appraise the national joblessness rate. In December 10.0%of those met were jobless.

02

Explanation

The individuals that are studied are considered as the population. Here, all individuals of the U.S are the population.

A sample is the subpart of the population that is studied to get details about the population.

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Most popular questions from this chapter

The number of unbroken charcoal briquets in a twenty-pound bag filled at the factory follows a Normal distribution with a mean of450briquets and a standard deviation of 20briquets. The company expects that a certain number of the bags will be underfilled, so the company will replace for free the 5% of bags that have too few briquets. What is the minimum number of unbroken briquets the bag would have to contain for the company to avoid having to replace the bag for free?

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