An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data obtained follow. Car Compact Intermediate Full-sized Ho: "Computerized * #Electronic # Ha: "Computerized = "Electronic Ho: Computerized Electronic Ha: "Computerized * #Electronic Computerized 52 53 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. = 63 O Ho: #Compact Intermediate Full-sized Ha: "Compact Intermediate Full-sized Analyzer Ho: MCompact = "Intermediate = "Full-sized Ha: "Compact # #Intermediate Full-sized Electronic = 41 O Ho: #Computerized Electronic Compact Intermediate H₂: Not all the population means are equal. 45 46 "Full-sized

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An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine
analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in
the experiment. The data obtained follow.
Car
Compact
Intermediate
Full-sized
#
Ho: MComputerized * μElectronic
Ha: Computerized
MElectronic
Ho: "Computerized MElectronic
#
Ha: μComputerized ‡ µElectronic
Computerized
52
Use a = 0.05 to test for any significant differences.
State the null and alternative hypotheses.
=
53
=
63
# μFull-sized
Ho: MCompact MIntermediate
#
Ha: Compact = MIntermediate μFull-sized
Analyzer
Electronic
41
45
Ho: MComputerized = μElectronic Compact MIntermediate
Not all the population means are equal.
Ha:
Ho: MCompact = MIntermediate Full-sized
Ha: MCompact #
#
MIntermediate Full-sized
46
Full-sized
Transcribed Image Text:An automobile dealer conducted a test to determine if the time in minutes needed to complete a minor engine tune-up depends on whether a computerized engine analyzer or an electronic analyzer is used. Because tune-up time varies among compact, intermediate, and full-sized cars, the three types of cars were used as blocks in the experiment. The data obtained follow. Car Compact Intermediate Full-sized # Ho: MComputerized * μElectronic Ha: Computerized MElectronic Ho: "Computerized MElectronic # Ha: μComputerized ‡ µElectronic Computerized 52 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. = 53 = 63 # μFull-sized Ho: MCompact MIntermediate # Ha: Compact = MIntermediate μFull-sized Analyzer Electronic 41 45 Ho: MComputerized = μElectronic Compact MIntermediate Not all the population means are equal. Ha: Ho: MCompact = MIntermediate Full-sized Ha: MCompact # # MIntermediate Full-sized 46 Full-sized
Find the value of the test statistic. (Round your answer to two decimal places.)
0.0859
Find the p-value. (Round your answer to three decimal places.)
p-value = = 0.020
X
State your conclusion.
Reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
Do not reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
Do not reject Ho. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
Reject Ho. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
Transcribed Image Text:Find the value of the test statistic. (Round your answer to two decimal places.) 0.0859 Find the p-value. (Round your answer to three decimal places.) p-value = = 0.020 X State your conclusion. Reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. Do not reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. Do not reject Ho. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. Reject Ho. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
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Given that

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