/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 6 The supervisors of a rural count... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 6

The supervisors of a rural county are interested in the proportion of property owners who support the construction of a sewer system. Because it is too costly to contact all 7000 property owners, a survey of 500 owners (selected at random) is undertaken. Describe the population and sample for this problem.

Short Answer

Expert verified
The population for this problem is the entire set of 7000 property owners in the rural county, while the sample is the 500 owners selected randomly for the survey.

Step by step solution

01

Identify the Population

The population here will be all 7000 property owners in the rural county. These are the complete set of people that the supervisors are interested to learn about.
02

Identify the Sample

The sample in this exercise is the group of 500 owners that was selected randomly to partake in the survey. They are a subset of the population from which data is collected to make conclusions about the entire population.

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

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

In a survey of 100 people who had recently purchased motorcycles, data on the following variables was recorded: Gender of purchaser Brand of motorcycle purchased Number of previous motorcycles owned by purchaser Telephone area code of purchaser Weight of motorcycle as equipped at purchase a. Which of these variables are categorical? b. Which of these variables are discrete numerical? c. Which type of graphical display would be an appropriate choice for summarizing the gender data, a bar chart or a dotplot? d. Which type of graphical display would be an appropriate choice for summarizing the weight data, a bar chart or a dotplot?

For the following numerical attributes, state whether each is discrete or continuous. a. The number of insufficient-funds checks received by a grocery store during a given month b. The amount by which a 1-lb package of ground beef decreases in weight (because of moisture loss) before purchase c. The number of New York Yankees during a given year who will not play for the Yankees the next year d. The number of students in a class of 35 who have purchased a used copy of the textbook

Based on a study of 2121 children between the ages of one and four, researchers at the Medical College of Wisconsin concluded that there was an association between iron deficiency and the length of time that a child is bottle-fed (Milwaukee Journal Sentinel, November 26, 2005). Describe the sample and the population of interest for this study.

For each of the following situations, give a set of possible data values that might arise from making the observations described. a. The manufacturer for each of the next 10 automobiles to pass through a given intersection is noted. b. The grade point average for each of the 15 seniors in a statistics class is determined. c. The number of gas pumps in use at each of 20 gas stations at a particular time is determined. d. The actual net weight of each of 12 bags of fertilizer having a labeled weight of \(50 \mathrm{lb}\) is determined. e. Fifteen different radio stations are monitored during a 1-hr period, and the amount of time devoted to commercials is determined for each.

Water quality ratings of 36 Southern California beaches were given in the article "How Safe Is the Surf?" (Los Angeles Times, October 26, 2002). The ratings, which ranged from \(\mathrm{A}\) to \(\mathrm{F}\) and which reflect the risk of getting sick from swimming at a particular beach, are given in the following list: $$ \begin{array}{llllll} \mathrm{A}+ & \mathrm{A}+ & \mathrm{A}+ & \mathrm{F} & \mathrm{A}+ & \mathrm{A}+ \\ \mathrm{A} & \mathrm{B} & \mathrm{A} & \mathrm{C} & \mathrm{C} & \mathrm{A}- \\\ \mathrm{A} & \mathrm{F} & \mathrm{B} & \mathrm{A}+ & \mathrm{C} & \mathrm{A} \\\ \mathrm{D} & \mathrm{F} & \mathrm{A}+ & \mathrm{D} & \mathrm{A}+ & \mathrm{A} \\\ \mathrm{D} & \mathrm{A} & \mathrm{A} & \mathrm{D} & \mathrm{A}+ & \mathrm{A}+ \\\ \mathrm{A} & \mathrm{A} & \mathrm{C} & \mathrm{F}- & \mathrm{B} & \mathrm{A}+ \end{array} $$ a. Summarize the given ratings by constructing a relative frequency distribution and a bar chart. Comment on the interesting features of your bar chart. b. Would it be appropriate to construct a dotplot for these data? Why or why not?
See all solutions

Recommended explanations on Math Textbooks

Mechanics Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Pure Maths

Read Explanation

Applied Mathematics

Read Explanation

Calculus

Read Explanation

Logic and Functions

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.