Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 8: Q.129 (page 491)

Use the following information to answer the next two exercises: Five hundred and eleven (511) homes in a certain southern California community are randomly surveyed to determine if they meet minimal earthquake preparedness recommendations. One hundred seventy-three (173) of the homes surveyed met the minimum recommendations for earthquake preparedness, and 338 did not.

The point estimate for the population proportion of homes that do not meet the minimum recommendations for earthquake preparedness is ______.

a. 0.6614

b. 0.3386

c. 173

d. 338

Short Answer

Expert verified

The point estimate for the population proportion of homes that do not meet the minimum recommendations for earthquake preparedness is (b)0.3386

Step by step solution

01

Introduction

The number of homes surveyed met the minimum recommendations for earthquake preparedness = 173

The number of homes surveyed doesn't meet the minimum recommendations for earthquake preparedness =338.

02

Explanation

Calculating the point estimate = HousesthatmettheearthquakepreparednessNo.ofhousessurveyed

The number of homes surveyed met the minimum recommendations for earthquake preparedness = 173

Total number of houses surveyed = 511

Hence the point estimate is = role="math" localid="1653890892269" 173511=0.3386

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

The data in the Table are the result of a random survey of 39national flags (with replacement between picks) from various countries. We are interested in finding a confidence interval for the true mean number of colors on a national flag. Let X=the number of colors on a national flag.

XFreq.11273184756

Construct a 95%confidence interval for the true mean number of colors on national flags.

The 95%confidence interval is_____.

List two difficulties the company might have in obtaining random results, if this survey were done by email.

The data in the Table are the result of a random survey of 39national flags (with replacement between picks) from various countries. We are interested in finding a confidence interval for the true mean number of colors on a national flag. Let X=the number of colors on a national flag.

XFreq.11273184756

What is X¯estimating?

Fill in the blanks on the graph with the areas, upper and lower limits of the confidence interval, and the sample mean.

In words, define the random variables X andX¯.
See all solutions

Recommended explanations on Math Textbooks

Logic and Functions

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Mechanics Maths

Read Explanation

Pure Maths

Read Explanation

Statistics

Read Explanation

Probability and Statistics

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