Intro Stats, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134210285
Author: Richard D. De Veaux, Paul Velleman, David E. Bock
Publisher: PEARSON
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Chapter 16, Problem 6E
a.
To determine
Check whether the statement is true or false.
b.
To determine
Check whether the statement is true or false.
c.
To determine
Check whether the statement is true or false.
d.
To determine
Check whether the statement is true or false.
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P-value is -.055
You are asked to make a decision about whether to reject the null hypothesis that the population value of gamma equals 0 (i.e., that there is no ordinary association in the population between frequency of prayer and health). If alpha = 0.05 and you use a non-directional alternative hypothesis, which of the following is true?)
A. Since the p-value is larger than alpha, you do not reject the null hypothesis
B. Since the p-value is less than alpha, you do not reject the null hypothesis
C. Since the p-value is larger than alpha, you reject the null hypothesis.
D. Since the p-value is less than alpha, you reject the null hypothesis
Once we have a x? value we need to determine if it is statistically significant. This is accomplished
using a x table (see table below). The values inside the table represent calculated x values. Before
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SLSU-TO/NCMatondo
10
we can either accept or reject the null hypothesis, we need to determine our alpha (P-value) and
degrees of freedom (df). P-values can be interpreted in multiple ways. For example, suppose we
obtained a x? of 0.016 with 1 df. Based on the table, random chance alone would produce a x² value
greater than 0.016 over 90% of the time (see bold square in table). In most statistical hypothesis
testing we adopt an alpha (P-value) of 0.05 or 5%. Examining the table, with 1 df we would need a x?
> 3.841 (known as the critical value) in order to reject the null hypothesis of no significant difference
between observed and expected values. Degrees of freedom is obtained by subtracting 1 from the
total number of categories (n – 1). For example, in…
Using the information provided in the SPSS output. You are asked to make a decision about whether to reject the null hypothesis that the population value of gamma equals 0 (i.e., that there is no ordinary association in the population between frequency of prayer and health). If alpha = 0.05 and you use a non-directional alternative hypothesis, which of the following is true?)
A. Since the p-value is larger than alpha, you do not reject the null hypothesis
B. Since the p-value is less than alpha, you do not reject the null hypothesis
C. Since the p-value is larger than alpha, you reject the null hypothesis.
D. Since the p-value is less than alpha, you reject the null hypothesis
Chapter 16 Solutions
Intro Stats, Books a la Carte Edition (5th Edition)
Ch. 16.2 - An experiment to test the fairness of a roulette...Ch. 16.2 - Prob. 2JCCh. 16.2 - Prob. 3JCCh. 16.3 - Prob. 4JCCh. 16.3 - Prob. 5JCCh. 16.3 - Prob. 6JCCh. 16.3 - Prob. 7JCCh. 16.4 - Remember the bank thats sending out DVDs to try to...Ch. 16.4 - Prob. 9JCCh. 16.4 - For the bank, which situation has higher power: a...
Ch. 16 - True or false Which of the following are true? If...Ch. 16 - False or true Which of the following are true? If...Ch. 16 - P-values Which of the following are true? If...Ch. 16 - Prob. 4ECh. 16 - Prob. 5ECh. 16 - Prob. 6ECh. 16 - Prob. 7ECh. 16 - More critical values For each of the following...Ch. 16 - Prob. 9ECh. 16 - Significant again? A new reading program may...Ch. 16 - SECTION 16.4 11. Errors For each of the following...Ch. 16 - More errors For each of the following situations,...Ch. 16 - CHAPTER EXERCISES 13. P-value A medical researcher...Ch. 16 - Prob. 14ECh. 16 - Alpha A researcher developing scanners to search...Ch. 16 - Prob. 16ECh. 16 - Prob. 17ECh. 16 - Is the Euro fair? Soon after the Euro was...Ch. 16 - Prob. 19ECh. 16 - Prob. 20ECh. 16 - Prob. 21ECh. 16 - Prob. 22ECh. 16 - Prob. 23ECh. 16 - Prob. 24ECh. 16 - Prob. 25ECh. 16 - Prob. 26ECh. 16 - Prob. 27ECh. 16 - Alzheimers Testing for Alzheimers disease can be a...Ch. 16 - Prob. 29ECh. 16 - Quality control Production managers on an assembly...Ch. 16 - Cars, again As in Exercise 29, state regulators...Ch. 16 - Prob. 32ECh. 16 - Equal opportunity? A company is sued for job...Ch. 16 - Stop signs Highway safety engineers test new road...Ch. 16 - Prob. 35ECh. 16 - Ads A company is willing to renew its advertising...Ch. 16 - Prob. 37ECh. 16 - Prob. 38ECh. 16 - Prob. 39ECh. 16 - Catheters During an angiogram, heart problems can...Ch. 16 - Prob. 41ECh. 16 - Prob. 42ECh. 16 - Prob. 43ECh. 16 - Faulty or not? You are in charge of shipping...Ch. 16 - Prob. 45ECh. 16 - Prob. 46ECh. 16 - Prob. 47ECh. 16 - Prob. 48E
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