STATS:DATA+MODELS-W/DVD
STATS:DATA+MODELS-W/DVD
4th Edition
ISBN: 9780321986498
Author: DeVeaux
Publisher: PEARSON
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 21, Problem 3E

a.

To determine

Check whether the statement is true or false.

a.

Expert Solution
Check Mark

Answer to Problem 3E

The given statement is false.

Explanation of Solution

Justification:

If the P-value is high, then the null hypothesis is not rejected. Thus, there is no strong evidence that the null hypothesis is false.

b.

To determine

Check whether the statement is true or false.

b.

Expert Solution
Check Mark

Answer to Problem 3E

The statement is false.

Explanation of Solution

Justification:

When the P-value is less, the result provides the evidence against the null hypothesis. It means that the value of the hypothesis test says that the null hypothesis is rejected and does not state that it is false.

c.

To determine

Check whether the statement is true or false.

c.

Expert Solution
Check Mark

Answer to Problem 3E

The statement is false.

Explanation of Solution

Justification:

Since the high P-value does not mean that the null hypothesis is true, it proves that the data are consistent with the null hypothesis. However, it does not have any evidence to prove that the null hypothesis is true.

d.

To determine

Check whether the statement is true or false.

d.

Expert Solution
Check Mark

Answer to Problem 3E

The statement is false.

Explanation of Solution

Justification:

If the P-value is less than 0.05, then there is enough evidence to prove that the null hypothesis is rejected. The rejection of null hypothesis depends on the risk of type-I error that depends on the researcher’s willingness to assume the level of significance.

Statistics Concept Introduction

Introduction:

P-value:

The P-value represents the probability value that is associated with a statistical test. The difference between an observed mean (sample mean difference between scores) and a population mean (mean difference between scores) is likely to be supported when the null hypothesis is true. That is, the P-value is defined as the probability that obtains the test statistic is extreme or more extreme from the population parameter if the null hypothesis is true.

Criterion for rejecting the null hypothesis using the P-value approach:

Decision rule:

If P-valueα, then reject the null hypothesis H0.

If P-value>α, then fail to reject the null hypothesis H0.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
For the distribution shown, match the letter to the measure of central tendency. A B C C Drag each of the letters into the appropriate measure of central tendency. Mean C Median A Mode B
A physician who has a group of 38 female patients aged 18 to 24 on a special diet wishes to estimate the effect of the diet on total serum cholesterol. For this group, their average serum cholesterol is 188.4 (measured in mg/100mL). Suppose that the total serum cholesterol measurements are normally distributed with standard deviation of 40.7. (a) Find a 95% confidence interval of the mean serum cholesterol of patients on the special diet.
The accompanying data represent the weights (in grams) of a simple random sample of 10 M&M plain candies. Determine the shape of the distribution of weights of M&Ms by drawing a frequency histogram. Find the mean and median. Which measure of central tendency better describes the weight of a plain M&M? Click the icon to view the candy weight data. Draw a frequency histogram. Choose the correct graph below. ○ A. ○ C. Frequency Weight of Plain M and Ms 0.78 0.84 Frequency OONAG 0.78 B. 0.9 0.96 Weight (grams) Weight of Plain M and Ms 0.84 0.9 0.96 Weight (grams) ○ D. Candy Weights 0.85 0.79 0.85 0.89 0.94 0.86 0.91 0.86 0.87 0.87 - Frequency ☑ Frequency 67200 0.78 → Weight of Plain M and Ms 0.9 0.96 0.84 Weight (grams) Weight of Plain M and Ms 0.78 0.84 Weight (grams) 0.9 0.96 →

Chapter 21 Solutions

STATS:DATA+MODELS-W/DVD

Knowledge Booster
Background pattern image
Statistics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
The Shape of Data: Distributions: Crash Course Statistics #7; Author: CrashCourse;https://www.youtube.com/watch?v=bPFNxD3Yg6U;License: Standard YouTube License, CC-BY
Shape, Center, and Spread - Module 20.2 (Part 1); Author: Mrmathblog;https://www.youtube.com/watch?v=COaid7O_Gag;License: Standard YouTube License, CC-BY
Shape, Center and Spread; Author: Emily Murdock;https://www.youtube.com/watch?v=_YyW0DSCzpM;License: Standard Youtube License