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Chapter 1: Q. 46 (page 53)

A politician is interested in the proportion of voters in his district who think he is doing a good job.

Short Answer

Expert verified

a. In the politician's district, the entire population is made up of voters.

b. A sample is a group of voters chosen at random from the politician's constituency.

c. This is the percentage of voters that believe this politician is doing a good job in this district.

d. The percentage of voters in this district who believe this politician is doing a good job in the sample is the statistic.

e. The variable represents the number of voters in the district who believe this politician is doing a good job, which is X=.

f. Data is given by the variable like 1000 votes or 2000 votes and so on..

Step by step solution

01

Introduction

Apoliticianissomeonewhoparticipatesinpartypoliticsorholdsorseeksanelectedgovernmentposition.
Politicians propose, support, reject, and write laws that control the land and, by implication, the people that live there.
A politician, in broad terms, is somebody who aspires to gain political power in a government.
02

Explanation of a

The population will be the voters in the politician's district, according to the information supplied.

03

Explanation of b

Based on the information supplied, a sample of this data will be drawn from a randomly selected group of voters.

04

Explanation of c

According to the information provided, the parameter of this data will be the population share of votes cast in favor of the politician who is performing well.

05

Explanation of d

Based on the information supplied, the statistic of this data will be the sample proportion of votes cast in favor of the politician who is performing well.

06

Explanation of e

Votes of voters will be the variable of this data, according to the details supplied.

07

Explanation of f

The data will be the value of the variable, such as 1000 votes or 2000 votes, based on the information supplied.

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Most popular questions from this chapter

1.21 You are concerned about the effects of texting on driving performance. Design a study to test the response time

of drivers while texting and while driving only. How many seconds does it take for a driver to respond when a leading

car hits the brakes?

a. Describe the explanatory and response variables in the study.

b. What are the treatments?

c. What should you consider when selecting participants?

d. Your research partner wants to divide participants randomly into two groups: one to drive without distraction and

one to text and drive simultaneously. Is this a good idea? Why or why not?

e. Identify any lurking variables that could interfere with this study.

f. How can blinding be used in this study?

The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of a:

a. parameter.

b. data.

c. statistic.

d. variable.

What type of measure scale is being used? Nominal, ordinal, interval or ratio.

a. High school soccer players classified by their athletic ability: Superior, Average, Above average

b. Baking temperatures for various main dishes: 350, 400, 325, 250, 300

c. The colors of crayons in a 24-crayon box

d. Social security numbers

e. Incomes measured in dollars

f. A satisfaction survey of a social website by number: 1 = very satisfied, 2 = somewhat satisfied, 3 = not satisfied

g. Political outlook: extreme left, left-of-center, right-of-center, extreme right

h. Time of day on an analog watch

i. The distance in miles to the closest grocery store

j. The dates 1066, 1492, 1644, 1947, and 1944

k. The heights of 21–65 year-old women

l. Common letter grades: A, B, C, D, and F

What is the population she is interested in?

a. all Lake Tahoe Community College students

b. all Lake Tahoe Community College English students

c. all Lake Tahoe Community College students in her classes

d. all Lake Tahoe Community College math students

Use the following information to answer the next two exercises: A study was done to determine the age, number of times per week, and the duration (amount of time) of resident use of a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every 8th house in the neighborhood around the park was interviewed.

“Number of times per week” is what type of data?

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