Gen Combo Ll Statistical Techniques In Business And Economics; Connect Ac
17th Edition
ISBN: 9781260149623
Author: Lind
Publisher: MCG
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Chapter 12, Problem 1P
a.
To determine
State the hypotheses.
b.
To determine
Write the decision rule.
c.
To determine
Find the decision.
d.
To determine
Interpret the context of the study.
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2. Suppose a 95% CI for the proportion of adults that regularly attend a tae kwon do class at least once
a week was found to be (0.2534, 0.3894).
decision
a. For the null and alternative hypothesis: Ho: p = 0.40 versus Ha: p # 0.40, what is
for this test of hypothesis?
your
b. Based on the CI, which of the following statements gives the best conclusion about the true
value of the proportion of adults that regularly attend a tae kwon do class at least once a week?
i. I am 95% confident that the proportion of adults that regularly attend a tae kwon do class
at least once a week is greater than 40%.
ii. I am 95% confident that the proportion of adults that regularly attend a tae kwon do class
at least once a week is different than 40%
iii. I am 95% confident that the proportion of adults that regularly attend a tae kwon do class
at least once a week is less than 40%
iv. I am 95% confident that the proportion of adults that regularly attend a tae kwon do class
at least once a week equals…
4. Conceptual Question: A one sample t-test is conducted for a data set and you fail to reject the null hypothesis
at a =.05. If you conducted the same hypothesis test, but use a =.01 what would be the outcome of the t-test?
Part C: Perform a chi-square test for the hypotheses.
H0: The number of courses enrolled by students at the local college and their employment status have no association.Ha: The number of courses enrolled by students at the local college and their employment status have an association.
What can you conclude based on the p-value?
Chapter 12 Solutions
Gen Combo Ll Statistical Techniques In Business And Economics; Connect Ac
Ch. 12 - Steele Electric Products Inc. assembles cell...Ch. 12 - What is the critical F value when the sample size...Ch. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - Prob. 2SRCh. 12 - Prob. 7ECh. 12 - Prob. 8E
Ch. 12 - Prob. 9ECh. 12 - Prob. 10ECh. 12 - Prob. 3SRCh. 12 - Prob. 11ECh. 12 - The following are six observations collected from...Ch. 12 - Prob. 13ECh. 12 - Prob. 14ECh. 12 - Prob. 4SRCh. 12 - Prob. 15ECh. 12 - For exercises 15 and 16, conduct a test of...Ch. 12 - Prob. 17ECh. 12 - Prob. 18ECh. 12 - Prob. 5SRCh. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - Prob. 23CECh. 12 - Prob. 24CECh. 12 - Prob. 25CECh. 12 - Prob. 26CECh. 12 - In an ANOVA table, the MSE is equal to 10. Random...Ch. 12 - Prob. 28CECh. 12 - Prob. 29CECh. 12 - Prob. 30CECh. 12 - Prob. 31CECh. 12 - Prob. 32CECh. 12 - Prob. 33CECh. 12 - Prob. 34CECh. 12 - Prob. 35CECh. 12 - Prob. 36CECh. 12 - Prob. 37CECh. 12 - Prob. 38CECh. 12 - Shanks Inc., a nationwide advertising firm, wants...Ch. 12 - Prob. 40CECh. 12 - Prob. 41CECh. 12 - Prob. 42CECh. 12 - Prob. 43CECh. 12 - Prob. 44CECh. 12 - Prob. 45CECh. 12 - Prob. 46CECh. 12 - Prob. 47CECh. 12 - Prob. 48CECh. 12 - Prob. 50DACh. 12 - Prob. 51DACh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 1CCh. 12 - Prob. 2CCh. 12 - Prob. 1.1PTCh. 12 - The likelihood of rejecting a true null hypothesis...Ch. 12 - Prob. 1.3PTCh. 12 - Prob. 1.4PTCh. 12 - Prob. 1.5PTCh. 12 - Prob. 1.6PTCh. 12 - In a two-tailed test, the rejection region is...Ch. 12 - Prob. 1.8PTCh. 12 - Prob. 1.9PTCh. 12 - Prob. 1.10PTCh. 12 - Prob. 2.1PTCh. 12 - Prob. 2.2PTCh. 12 - Prob. 2.3PT
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- Review: Suppose a hypothesis test produces P = 0.0512 Will the null hypothesis be rejected at α = 0.10? How will the outcome of the test change if the level of significance is changed to 0.05? Explain in 1 – 2 complete sentences.arrow_forwardState the null and the alternative hypothesesarrow_forwardAnswer A, B1, and B2: A. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population. B. Researchers interested in lead exposure due to car exhaust sampled the blood of 52 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a primarily urban environment. The blood samples of these officers had an average lead concentration of 124.32 µg/l and a SD of 37.74 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level…arrow_forward
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