Statistical Techniques in Business and Economics
16th Edition
ISBN: 9780077639723
Author: Lind
Publisher: Mcgraw-Hill Course Content Delivery
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Chapter 16, Problem 9E
a.
To determine
State the null and alternative hypotheses.
b.
To determine
Provide the decision rule.
c.
To determine
Interpret the results using the necessary computations.
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A publisher reports that 67% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 250 found that 62% of the readers owned a particular make of car. State the null and alternative hypotheses.
what is HO and HA ?
STATE THE NULL AND ALTERNATIVE HYPOTHESES OF THE FOLLOWING.
NEWBORN BABIES ARE MORE LIKELY TO BE BOYS THAN GIRLS. A RANDOM SAMPLE FOUND 12,193 BOYS WERE BORN AMONG 26,468 NEWBORN CHILDREN. THE SAMPLE PROPORTION OF BOYS WAS 0.4607. IS THIS SAMPLE EVIDENCE THAT THE BIRTH OF BOYS IS LESS COMMON THAN THE BIRTH OF GIRLS IN THE ENTIRE POPULATION?
A radio station states that 30% of the songs they play each week are from Canadian artists. A DJ working at the station claims that the actual percentage differs from what the station states. The DJ takes a random sample of 87 songs played during a given week and finds that 28 of them are from Canadian artists. Use this information to answer the questions below.
a. Suppose the DJ wishes to perform a hypothesis test of his claim. Select the most appropriate null and alternative hypotheses for this hypothesis test.
H0:p^≠0.3Ha:p^=0.3
H0:x―=0.3Ha:x―≠0.3
H0:μ≠0.3Ha:μ=0.3
H0:p=0.3Ha:p≠0.3
H0:μ=0.3Ha:μ≠0.3
H0:p≠0.3Ha:p=0.3
H0:p^=0.3Ha:p^≠0.3
H0:x―≠0.3Ha:x―=0.3
b. To assess his hypothesis, the DJ wants to compute a bootstrap-based confidence interval from his sample. Which of the following uses of the quantile() function would produce the correct interval bounds for a 96% bootstrap-based confidence interval?
c(quantile(B$mean, 0.04), quantile(B$mean, 0.96))
c(quantile(B$mean, 0.02),…
Chapter 16 Solutions
Statistical Techniques in Business and Economics
Ch. 16 - Prob. 1SRCh. 16 - Prob. 1ECh. 16 - Prob. 2ECh. 16 - Calorie Watchers has low-calorie breakfasts,...Ch. 16 - Prob. 4ECh. 16 - Prob. 2SRCh. 16 - Prob. 5ECh. 16 - Prob. 6ECh. 16 - Prob. 7ECh. 16 - Prob. 8E
Ch. 16 - Prob. 3SRCh. 16 - Prob. 9ECh. 16 - Prob. 10ECh. 16 - Prob. 4SRCh. 16 - Prob. 11ECh. 16 - Prob. 12ECh. 16 - Prob. 13ECh. 16 - Prob. 14ECh. 16 - Prob. 5SRCh. 16 - Prob. 15ECh. 16 - Prob. 16ECh. 16 - Prob. 17ECh. 16 - Prob. 18ECh. 16 - Prob. 6SRCh. 16 - Prob. 19ECh. 16 - Prob. 20ECh. 16 - Prob. 21ECh. 16 - Prob. 22ECh. 16 - Prob. 23ECh. 16 - Prob. 24ECh. 16 - Prob. 7SRCh. 16 - Prob. 25ECh. 16 - Prob. 26ECh. 16 - Prob. 27ECh. 16 - Prob. 28ECh. 16 - Prob. 29CECh. 16 - Prob. 30CECh. 16 - Prob. 31CECh. 16 - Prob. 32CECh. 16 - Prob. 33CECh. 16 - Prob. 34CECh. 16 - Prob. 35CECh. 16 - Prob. 36CECh. 16 - Prob. 37CECh. 16 - Prob. 38CECh. 16 - Prob. 39CECh. 16 - Professor Bert Forman believes the students who...Ch. 16 - Prob. 41DECh. 16 - Refer to the Baseball 2012 data, which report...Ch. 16 - Prob. 43DECh. 16 - Prob. 1PCh. 16 - The manufacturer of childrens raincoats wants to...Ch. 16 - Prob. 3PCh. 16 - Prob. 4PCh. 16 - B. Thomas Testing Labs John Thomas, the owner of...Ch. 16 - Prob. 1.1PTCh. 16 - Prob. 1.2PTCh. 16 - Prob. 1.3PTCh. 16 - Prob. 1.4PTCh. 16 - Prob. 1.5PTCh. 16 - Prob. 1.6PTCh. 16 - Prob. 1.7PTCh. 16 - Prob. 1.8PTCh. 16 - Prob. 1.9PTCh. 16 - Prob. 1.10PTCh. 16 - Prob. 2.1PTCh. 16 - Prob. 2.2PTCh. 16 - Prob. 2.3PTCh. 16 - Prob. 2.4PT
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