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Determine whether the given value is a statistic or a parameter.
"A survey found that 67% of all respondents have a job."
 
a)The value is a statistic because it is a numerical measurement describing some characteristic of a population.
b) The value is a statistic because it is a numerical measurement describing some characteristic of a sample.
c) The value is a parameter because it is a numerical measurement describing some characteristic of a sample.
d) The value is a parameter because it is a numerical measurement describing some characteristic of a population.

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Keith Leannon
Keith LeannonLv2
28 Feb 2020
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Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

Related questions

A statistic is said to be unbiased if

a.) it is used for only honest purposes.

b.) the survey used to obtain the statistic was designed so as to avoid even the hint of racial or sexual prejudice.

c.) both the person who calculated the statistic and the subjects whose responses make up the statistic were truthful.

d.) the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Determine whether the given value is a statistic or a parameter.

a.) The mean salary for construction workers is .

b.) In a study of all students at a college it is found that own a vehicle.

c.) A homeowner measured the voltage supplied to his home on days of a given week, the average (mean) value is .

d.) A particular country has total states. If the areas of states are added and the sum is divided by , the result is  .

1. Matt, the manager, wants to estimate the mean wait time for customers to check out in his Mini-Market. He randomly selects customers and determines the mean wait time is minutes. Define the following for this exercise:

a) Is the data collected qualitative or quantitative?

b) Variable (x):

c) Population of Interest:

d) Sample:

e) Parameter of Interest and Statistic: Do you expect the parameter and the statistic to be the same value? Explain.

f) Discuss the use of descriptive and inferential statistics in this exercise.

g) Is the variable, x, discrete or continuous?

 

2. Identify the population and sample for the following examples:

The P.E. coach of a middle school interested in the mean height for the graders in the school. He randomly selects graders and measures the height of each.

a) Population:

b) 7thgraders Sample:

c) A community college notices that an increasing number of full-time students are working while attending school. The administration randomly selects 200 students and determines how many hours per week each student works.

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