STATISTICAL TECH IN BUSN CONNECT <LCPO>
18th Edition
ISBN: 9781266505942
Author: Lind
Publisher: MCG
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Chapter 15, Problem 9E
To determine
Check whether people can conclude that there is a difference in the proportion of vines infested using Pernod 5 as opposed to Action.
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Students have asked these similar questions
Some commercial airlines recirculate about half the air in the cabin during flights as a way to improve fuel efficiency. Other airlines make a policy of NOT recirculating the air and instead, have fresh air from the atmosphere constantly being inserted into the cabin with the “old” air being pumped out of the plane.
A total of 1100 passengers flying from San Francisco to Denver were used for an experiment. After their flight, they were each given a list of symptoms associated with the common cold. They were asked to report if they experienced cold symptoms within 24 hours of the flight landing.
Of the 517 passengers who flew on planes that recirculate the air, 108 reported post-flight cold symptoms. Of the 583 passengers who flew on airlines that do not use recirculation in the cabin, 110 reported symptoms.
Suppose now that we want to use the recirculation of air data to explore “Goal #2”, which is to resolve a hypothesis test about .
a) If we want to resolve this hypothesis…
The Damon family owns a large grape vineyard in western New York along Lake Erie. The grapevines must be sprayed at the beginning of the growing season to protect against various insects and diseases. Two new insecticides have just been marketed: Pernod 5 and Action. To test their effectiveness, three long rows were selected and sprayed with Pernod 5, and three others were sprayed with Action. When the grapes ripened, 390 of the vines treated with Pernod 5 were checked for infestation. Likewise, a sample of 420 vines sprayed with Action were checked. The results are:
Insecticide
Number of VinesChecked (sample size)
Number ofInfested Vines
Pernod 5
390
23
Action
420
46
At the 0.02 significance level, can we conclude that there is a difference in the proportion of vines infested using Pernod 5 as opposed to Action? Hint: For the calculations, assume the Pernod 5 as the first sample.
State the decision rule. (Negative values should be indicated by a minus sign. Do…
The Damon family owns a large grape vineyard in western New York along Lake Erie. The grapevines must be sprayed at the
beginning of the growing season to protect against various insects and diseases. Two new insecticides have just been marketed:
Pernod 5 and Action. To test their effectiveness, three long rows were selected and sprayed with Pernod 5, and three others were
sprayed with Action. When the grapes ripened, 400 of the vines treated with Pernod 5 were checked for infestation. Likewise, a
sample of 400 vines sprayed with Action were checked. The results are:
Insecticide
Pernod 5
Action
Number of Vines Checked (sample
size)
400
400
At the 0.05 significance level, can we conclude that there is a difference in the proportion of vines infested using Pernod 5 as opposed
to Action? Hint For the calculations, assume the Pernod 5 as the first sample.
HO is rejected if z
Chapter 15 Solutions
STATISTICAL TECH IN BUSN CONNECT <LCPO>
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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- The Damon family owns a large grape vineyard in western New York along Lake Erie. The grapevines must be sprayed at the beginning of the growing season to protect against various insects and diseases. Two new insecticides have just been marketed: Pernod 5 and Action. To test their effectiveness, three long rows were selected and sprayed with Pernod 5, and three others were sprayed with Action. When the grapes ripened, 440 of the vines treated with Pernod 5 were checked for infestation. Likewise, a sample of 360 vines sprayed with Action were checked. The results are: Number of Vines Checked (sample size) Insecticide Number of Infested Vines Pernod 5 440 30 Action 360 36 At the 0.02 significance level, can we conclude that there is a difference in the proportion of vines infested using Pernod 5 as opposed to Action? Hint. For the calculations, assume the Pernod 5 as the first sample. 1. State the decision rule. (Negative amounts should be indicated by a minus sign. Do not round the…arrow_forwardA researcher working at Hershey's is interested in comparing two new chocolate bars: Chocolate Bar A versus Chocolate Bar B. The researcher expects the bars to be different in how much customers will eat per month. The researcher believes the more candy bars someone eats will indicate which one tastes the best. An experiment is designed to compare the two new bars. The number of candy bars eaten by one group of 8 people in a month is measured with Candy Bar A and then the number of candy bars eaten in the same month by another group of 8 participants is measured with Candy Bar B. Use the data below to determine if there is a difference in the consumption of the two candy bars. Candy Bar A Candy Bar B Number of Candy Bars eaten within a month 10, 30, 5, 35, 60, 3, 20, 30, 28, 27, 26, 27, 17, 25 12, 20 With a = .05, determine the critical value of t* that needs to be employed here. The value of the appropriate of t* is: 2.145 O 1.717 2.064 2.819 2.074 O The correct answer is not listed.arrow_forwardA researcher working at Hershey's is interested in comparing two new chocolate bars: Chocolate Bar A versus Chocolate Bar B. The researcher expects the bars to be different in how much customers will eat per month. The researcher believes the more candy bars someone eats will indicate which one tastes the best. An experiment is designed to compare the two new bars. The number of candy bars eaten by one group of 8 people in a month is measured with Candy Bar A and then the number of candy bars eaten in the same month by another group of 8 participants is measured with Candy Bar B. Use the data below to determine if there is a difference in the consumption of the two candy bars. Number of Candy Bars eaten within a month. Candy Bar A Candy Bar B 10, 30, 5, 35, 60, 3, 30, 28, 27, 26, 27, 20, 25 17, 12, 20 With a = .05, complete step 4 of the hypothesis testing procedure. What decision should the researcher make regarding "life" satisfaction and gender? The researcher should retain HO and…arrow_forward
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