EBK STATISTICAL TECHNIQUES IN BUSINESS
17th Edition
ISBN: 9781259924163
Author: Lind
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 15, Problem 31CE
a.
To determine
Explain the reason for using z-statistic as the test statistic.
b.
To determine
Write the null and alternative hypotheses.
c.
To determine
Draw a diagram for the decision rule.
d.
To determine
Find the test statistic.
Obtain the decision.
e.
To determine
Find the p-value and explain it.
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Students have asked these similar questions
According to the National Highway and Traffic Safety Administration, the proportion of fatal traffic accidents in the United States in which the driver had a positive blood alcohol concentration (BAC) is .36. Suppose a random sample of 105 traffic fatalities in the state of Hawaii results in 51 that involved a positive BAC.
D) Check whether the conditions for hypothesis testing using the P-value approach are meet.
In a study of
786
randomly selected medical malpractice lawsuits, it was found that
484
of them were dropped or dismissed. Use a
0.05
significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed.
Which of the following is the hypothesis test to be conducted?
A.
H0: p≠0.5
H1: p=0.5
B.
H0: p=0.5
H1: p≠0.5
C.
H0: p=0.5
H1: p>0.5
D.
H0: p<0.5
H1: p=0.5
E.
H0: p>0.5
H1: p=0.5
F.
H0: p=0.5
H1: p<0.5
What is the test statistic?
z=
(Round to two decimal places as needed.)
What is the P-value?
P-value=
In a study of
800
randomly selected medical malpractice lawsuits, it was found that
515
of them were dropped or dismissed. Use a
0.05
significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed.
Which of the following is the hypothesis test to be conducted?
A.
H0: p=0.5
H1: p>0.5
B.
H0: p=0.5
H1: p<0.5
C.
H0: p>0.5
H1: p=0.5
D.
H0: p=0.5
H1: p≠0.5
E.
H0: p<0.5
H1: p=0.5
F.
H0: p≠0.5
H1: p=0.5
Chapter 15 Solutions
EBK STATISTICAL TECHNIQUES IN BUSINESS
Ch. 15 - A recent insurance industry report indicated that...Ch. 15 - The following hypotheses are given. H0:.70H1:.70 A...Ch. 15 - The following hypotheses are given. H0:=.40H1:.40...Ch. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Prob. 2SRCh. 15 - Prob. 7ECh. 15 - The null and alternate hypotheses are: H0:1=2H1:12...
Ch. 15 - Prob. 9ECh. 15 - GfK Research North America conducted identical...Ch. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 3SRCh. 15 - Prob. 13ECh. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Classic Golf Inc. manages five courses in the...Ch. 15 - Prob. 19ECh. 15 - Prob. 20ECh. 15 - Prob. 4SRCh. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - Prob. 25ECh. 15 - Advertising expenses are a significant component...Ch. 15 - Prob. 5SRCh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - Prob. 30ECh. 15 - Prob. 31CECh. 15 - Prob. 32CECh. 15 - Prob. 33CECh. 15 - Prob. 34CECh. 15 - Prob. 35CECh. 15 - Research in the gaming industry showed that 10% of...Ch. 15 - Prob. 37CECh. 15 - Prob. 38CECh. 15 - Prob. 39CECh. 15 - Prob. 40CECh. 15 - Prob. 41CECh. 15 - Prob. 42CECh. 15 - The Consumer Confidence Survey is a monthly review...Ch. 15 - Prob. 44CECh. 15 - Prob. 45CECh. 15 - Prob. 46CECh. 15 - Vehicles heading west on Front Street may turn...Ch. 15 - Prob. 48CECh. 15 - Prob. 49CECh. 15 - Prob. 50CECh. 15 - Prob. 51CECh. 15 - Prob. 52CECh. 15 - Prob. 53CECh. 15 - Prob. 54CECh. 15 - Prob. 55CECh. 15 - Prob. 56CECh. 15 - Prob. 57CECh. 15 - Prob. 58CECh. 15 - Prob. 59CECh. 15 - Prob. 60CECh. 15 - Did you ever purchase a bag of MMs candies and...Ch. 15 - Prob. 62DACh. 15 - Prob. 63DACh. 15 - Prob. 64DA
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- In a study of 800 randomly selected medical malpractice lawsuits, it was found that 515 of them were dropped or dismissed. Use a 0.05 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be conducted? A. H0: p=0.5 H1: p>0.5 Your answer is correct. B. H0: p=0.5 H1: p<0.5 C. H0: p>0.5 H1: p=0.5 D. H0: p=0.5 H1: p≠0.5 E. H0: p<0.5 H1: p=0.5 F. H0: p≠0.5 H1: p=0.5 What is the test statistic? z=8.138.13 (Round to two decimal places as needed.) What is the P-value? P-value=0.0000.000 (Round to three decimal places as needed.) What is the conclusion about the null hypothesis? A. Reject the null hypothesis because the P-value is less than or equal to the significance level, α. Your answer is correct. B. Reject the null hypothesis because the P-value is greater than the significance level, α.…arrow_forwardIn a study of 800 randomly selected medical malpractice lawsuits, it was found that 515 of them were dropped or dismissed. Use a 0.05 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be conducted? A. H0: p=0.5 H1: p>0.5 Your answer is correct. B. H0: p=0.5 H1: p<0.5 C. H0: p>0.5 H1: p=0.5 D. H0: p=0.5 H1: p≠0.5 E. H0: p<0.5 H1: p=0.5 F. H0: p≠0.5 H1: p=0.5 What is the test statistic? z=enter your response here (Round to two decimal places as needed.)arrow_forwardIn the previous year, 40% of women over the age of fifty had regularly scheduled mammograms. Following last year's test, a campaign was initiated to encourage women to be tested regularly. This year, a cancer research group surveys a random sample of 450 women, and 195 respond affirmatively. With a 5% significance level, test to see if the campaign was effective. What is the null hypothesis? options: H0: μ ≤ 0.4 H0: μ ≥ 0.4 H0: p ≠ 0.4 H0: p ≥ 0.4 H0: p ≤ 0.4 H0: μ ≠ 0.4 None of these.arrow_forward
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