/*! 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} Q24BSC In Exercises 21鈥�24, refer to t... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q24BSC (page 1)

In Exercises 21鈥�24, refer to the data in the table below. The entries are white blood cell counts (1000 cells,ML) and red blood cell counts (million cells,ML) from male subjects examined as part of a large health study conducted by the National Center for Health Statistics. The data are matched, so that the first subject has a white blood cell count of 8.7 and a red blood cell count of 4.91, and so on.

Conclusion: If we analyze the sample data and conclude that there is a correlation between white blood cell counts and red blood cell counts, does it follow that higher white blood cell counts are the cause of higher red blood cell counts?

Short Answer

Expert verified

No, the result does not imply that higher counts of white blood cells cause an increase in the amount of red blood cells.

Step by step solution

01

Given information

Result of statistical analysis: Correlation between two types of blood cell counts

02

Meaning of correlation

Correlation is a measure that is used to estimate the level of linearity between two variables. It helps to signify the direction as well as the magnitude of a linear association.

03

Step 3:Correlation does not imply causation

In the case of two correlated variables, the cause of correlation is not assured. It cannot be indicated that correlation occurs because one variable causes the other to change.

In this case, despite the evident correlation between blood counts, it is incorrect to conclude that one variable causes the change in the other variable. Hence, it cannot be concluded that a higher white blood cell count in males can cause the count of red blood cells to increase.

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

Determine whether the data are from discrete data or continuous data set.

Freshman 15In a study of weight gains by college students in their freshman year, researchers record the amounts of weight gained by randomly selected students.

In Exercises 21-28,determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.

Exit PollFor the presidential election of 2016, ABC News conducts an exit poll in which voters are asked to identify the political party (Democratic, Republican, and so on) that they registered with.

Online Medical Info. USA Today posted this question on its website: 鈥淗ow often do you seek medical information online?鈥� Of 1072 Internet users who chose to respond, 38% of them responded with 鈥渇requently.鈥� What term is used to describe this type of survey in which the people surveyed consist of those who decided to respond? What is wrong with this type of sampling method?

Determine whether the data are from discrete data or continuous data set.

Criminal ForensicsWhen studying the relationship between lengths of feet and heights so that footprint evidence at a crime scene can be used to estimate the height of the suspect, a researcher records the exact lengths of feet from a large sample of random subjects.

In Exercises 21-28,determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.

Lead in Blood: Blood lead levels of low, medium, and high used to describe the subjects in Data Set 7 鈥淚Q and Lead鈥� in Appendix B.
See all solutions

Recommended explanations on Math Textbooks

Geometry

Read Explanation

Logic and Functions

Read Explanation

Probability and Statistics

Read Explanation

Discrete Mathematics

Read Explanation

Decision Maths

Read Explanation

Calculus

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.