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. Analyzer Computerized Electronic Compact 50 41 Car Intermediate 57 44 Full-sized 61 47 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. O Ho: HCompact * HIntermediate * HFull-sized Ha: HCompact = HIntermediate = HFull-sized O Ho: HComputerized * HElectronic Ha: MComputerized = HElectronic O Ho: HComputerized = HElectronic = HCompact = Hintermediate = "Full-sized H: Not all the population means are equal. O Ho: HCompact = HIntermediate = "Full-sized H: HCompact * HIntermediate * HFull-sized O Ho: MComputerized = HElectronic Ha: HComputerized * HElectronic Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = State your conclusion. O 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. O 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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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.
Analyzer
Computerized
Electronic
Compact
50
41
Car
Intermediate
57
44
Full-sized
61
47
Use a = 0.05 to test for any significant differences.
State the null and alternative hypotheses.
Ho: HCompact + HIntermediate
Ha: HCompact
H Full-sized
= HIntermediate
HFull-sized
Ho: HComputerized
HElectronic
Ha: "Computerized = HElectronic
Ho: HComputerized
= HElectronic
PCompact = HIntermediate
HFull-sized
%D
H: Not all the population means are equal.
Ho: HCompact = "Intermediate
= HFull-sized
+ HFull-sized
Ha: HCompact * HIntermediate
Hoi HComputerized
HElectronic
Ha: HComputerized * HElectronic
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)
p-value
State your conclusion.
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: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. Analyzer Computerized Electronic Compact 50 41 Car Intermediate 57 44 Full-sized 61 47 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. Ho: HCompact + HIntermediate Ha: HCompact H Full-sized = HIntermediate HFull-sized Ho: HComputerized HElectronic Ha: "Computerized = HElectronic Ho: HComputerized = HElectronic PCompact = HIntermediate HFull-sized %D H: Not all the population means are equal. Ho: HCompact = "Intermediate = HFull-sized + HFull-sized Ha: HCompact * HIntermediate Hoi HComputerized HElectronic Ha: HComputerized * HElectronic Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value State your conclusion. 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.
State your conclusion.
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.
Reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
Transcribed Image Text:State your conclusion. 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. Reject Ho. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
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