/*! 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} Q4 The accompanying histogram is co... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Q4 (page 281)

The accompanying histogram is constructed from the diastolic blood pressure measurements of the 147 women included in Data Set 1 鈥淏ody Data鈥� in Appendix B. If you plan to conduct further statistical tests and there is a loose requirement of a normally distributed population, what do you conclude about the population distribution based on this histogram?

Short Answer

Expert verified

The population distribution is approximately normal.

Step by step solution

01

Given information

A sample is considered showing the diastolic blood pressure measurements of 147 women. The histogram of the 147 blood pressures is plotted.

02

Shape of a histogram for normal distribution

A histogram of the sample values can be plotted to check whether a sample comes from a normally distributed population.

If the histogram is bell-shaped, then the sample can be assumed to be from a normally distributed population, otherwise not.

Here, the histogram of the 147 blood pressure levels appears to be approximately bell-shaped.

Therefore, the population from which the sample is taken is approximately normally distributed.

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 Exercises 9鈥�12, find the indicated IQ score and round to the nearest whole number. The graphs depict IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler IQ test).

Standard Normal Distribution Identify the two requirements necessary for a normal distribution to be a standard normal distribution

Distributions In a continuous uniform distribution,

渭=minimum+maximum2鈥�鈥�鈥�and蟽=range12

a. Find the mean and standard deviation for the distribution of the waiting times represented in Figure 6-2, which accompanies Exercises 5鈥�8.

b. For a continuous uniform distribution with 渭=0鈥�鈥�鈥�and鈥�鈥�鈥�蟽=1, the minimum is-3 and the maximum is 3. For this continuous uniform distribution, find the probability of randomly selecting a value between 鈥�1 and 1, and compare it to the value that would be obtained by incorrectly treating the distribution as a standard normal distribution. Does the distribution affect the results very much?

Normal Distribution What鈥檚 wrong with the following statement? 鈥淏ecause the digits 0, 1, 2, . . . , 9 are the normal results from lottery drawings, such randomly selected numbers have a normal distribution.鈥�

Good Sample? A geneticist is investigating the proportion of boys born in the world population. Because she is based in China, she obtains sample data from that country. Is the resulting sample proportion a good estimator of the population proportion of boys born worldwide? Why or why not?
See all solutions

Recommended explanations on Math Textbooks

Decision Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Calculus

Read Explanation

Probability and Statistics

Read Explanation

Mechanics Maths

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.