Solution Found!

Statistics / Statistics: Informed Decisions Using Data 4 / Chapter 4 / Problem 4CT

Statistics: Informed Decisions Using Data | 4th Edition | ISBN: 9780321757272 | Authors: Michael Sullivan, III

Change Question

Solved: esearcher collects data regarding the percent of

Chapter 4, Problem 4CT

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

A researcher collects data regarding the percent of all births to unmarried women and the number of violent crimes for the 50 states and Washington, DC. The scatter diagram along with the least-squares regression line obtained from MINITAB is shown. The correlation between percent of births to unmarried women and the number of violent crimes is 0.667. A politician looks over the data and claims that, for each 1% decrease in births to single mothers, violent crimes will decrease by 23. Therefore, percent of births to single mothers needs to be reduced in an effort to decrease violent crimes. Is there anything wrong with the reasoning of the politician? Explain.

Questions & Answers

QUESTION:

A researcher collects data regarding the percent of all births to unmarried women and the number of violent crimes for the 50 states and Washington, DC. The scatter diagram along with the least-squares regression line obtained from MINITAB is shown. The correlation between percent of births to unmarried women and the number of violent crimes is 0.667. A politician looks over the data and claims that, for each 1% decrease in births to single mothers, violent crimes will decrease by 23. Therefore, percent of births to single mothers needs to be reduced in an effort to decrease violent crimes. Is there anything wrong with the reasoning of the politician? Explain.

ANSWER:

Solution:

Step 1 of 2:

We have the Minitab display

The claim is to check is there anything wrong with the reasoning of the politician.

Study Tools You Might Need

Chapter: 9 Problem: 7.75

University Physics 13
Problem 75P A 0.500-kg block, attached to a spring with length 0.60 m and force constant 40.0 N/m, is at rest with the back of the block at point A on a frictionless, horizontal air table (Fig. P7.69). The mass of the spring is negligible. You move the block to the right

Chapter: 20 Problem: 12P

Physics with MasteringPhysics 4
A uniform electric field with a magnitude of 1200 N/C points in the negative x direction, as shown in Figure 2020. (a) What is the difference in electric potential, \(Delta V=V_{B}-V_{A}\), between points A and B? (b) What is the difference in electric potential, \(\Delta V=V_{B}-V_{C

Chapter: 6 Problem: 36P

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 3
Problem 36P The piston of a machine exerts a constant force on a ball as it moves horizontally through a distance of 15 cm. You use a motion detector to measure the speed of five different balls as they come off the piston; the data are shown below. Use theory to find two quantities that, when grap

Chapter: 6 Problem: 20

Anatomy & Physiology 1
Why is cartilage slow to heal? a. because it eventually develops into bone b. because it is semi-solid and flexible c. because it does not have a blood supply d. because endochondral ossification replaces all cartilage with bone

Chapter: 9 Problem: 9.24

Mathematical Statistics with Applications 7
Let Y1, Y2, Y3,... Yn be independent standard normal random variables. a What is the distribution of n i=1 Y 2 i ? b Let Wn = 1 n n i=1 Y 2 i . Does Wn converge in probability to some constant? If so, what is the value of the constant?

Chapter: 11 Problem: 30

The Practice of Statistics 5
How are schools doing? Refer to Exercise 28. Do the data provide convincing evidence of a difference in the distributions of opinions about how high schools are doing among black, Hispanic, and white parents? (a) State appropriate null and alternative hypotheses for a significance test to help answer

Chapter: 6 Problem: 2

What is Psychology?: Foundations, Applications, and Integration 4
Which of the following is an example of operant conditioning? a. Byron doesnt go to the dentist because the last time he did, it was very painful. b. Byron is afraid of dentists because the last time he went to the dentist, it was very painful. c. Byron wants to go to the dentist because when his fr

Chapter: 5 Problem: 1

Biology: Concepts and Applications 10
Which of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

×

Register

Sign up for access to all content on our site!

Or login if you already have an account