Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Q. 48 (page 53)

Political pollsters may be interested in the proportion of people who will vote for a particular cause.

Short Answer

Expert verified

a. The population is entirely made up of voters.

b. Asampleisasamplingofallthevotersatrandom.

c. The percentage of voters who are concerned about this issue.

d. Thepercentageofvoterswhosupportthissample'sparticularcause.

e. The variable is X, which represents the number of voters that are interested in this issue.

f. Thevariable,suchasyesorno,providesdata.

Step by step solution

01

Introduction

A pollster is someone who conducts surveys of people to find out who they are voting for or to learn more about their views.

02

Explanation of a

The population will be the voters, 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

The parameter of this data will be the population proportion of voters who will vote for a certain cause, according to the facts supplied.

05

Explanation of d

The sample proportion of people who will vote for a certain cause will be the statistic of this data, according to the specified facts.

06

Explanation of e

According to the information supplied, the variable of this data will be the number of votes cast by voters.

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.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A “random survey” was conducted of 3,274people of the “microprocessor generation” (people born since 1971, the year the microprocessor was invented). It was reported that 48% of those individuals surveyed stated that if they had $2,000to spend, they would use it for computer equipment. Also, 66%of those surveyed considered themselves relatively savvy computer users.

a. Do you consider the sample size large enough for a study of this type? Why or why not?

b. Based on your “gut feeling,” do you believe the percents accurately reflect the U.S. population for those individuals born since 1971? If not, do you think the percents of the population are actually higher or lower than the sample statistics? Why? Additional information: The survey, reported by Intel Corporation, was filled out by individuals who visited the Los Angeles Convention Center to see the Smithsonian Institute's road show called “America’s Smithsonian.”

c. With this additional information, do you feel that all demographic and ethnic groups were equally represented at the event? Why or why not?

d. With the additional information, comment on how accurately you think the sample statistics reflect the population parameters

A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every eighth house in the neighborhood around the park was interviewed. The sampling method was:

a. simple random

b. systematic

c. stratified

d. cluster

Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least \(5per share, and have reported annual revenue between \)5million and $1billion. Table 1.37shows the ages of the chief executive officers for the first 60ranked firms.

a. What is the frequency for CEO ages between 54 and 65?

b. What percentage of CEOs are 65 years or older?

c. What is the relative frequency of ages under 50?

d. What is the cumulative relative frequency for CEOs younger than 55?

e. Which graph shows the relative frequency and which shows the cumulative relative frequency?

Determine what the key terms refer to in the following study. We want to know the average (mean) amount of money spent on school uniforms each year by families with children at Knoll Academy. We randomly survey 100 families with children in the school. Three of the families spent \(65, \)75, and $95, respectively.

For the following exercises, identify the type of data that would be used to describe a response (quantitative discrete, quantitative continuous, or qualitative), and give an example of the data. brand of toothpaste
See all solutions

Recommended explanations on Math Textbooks

Statistics

Read Explanation

Logic and Functions

Read Explanation

Mechanics Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Calculus

Read Explanation

Applied Mathematics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free