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 56 44 Full-sized 62 47 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. O Ho: Hcompact * Hintermediate * Hpull-sized H: Hcompact " Hintermediate " HFull-sized O Ho: HComputerized* Helectronice H: HComputerized" Pelectronic O Hạ: Heomputerized HElectronie H: Hcomputerized" Helectronic O Ho: HComputerized" "electronie " "Compact = HIntermediate = "Full-sized H: Not all the population means are equal. O Ho: "Compaet" "Intermediate " Prull-sized H: HCompact" Hintermediate" HFull-sized 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.

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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
56
44
Full-sized
62
47
Use a = 0.05 to test for any significant differences.
State the null and alternative hypotheses.
O Ho: Hcompact * HIntermediate * HFull-sized
Ha: "Compact = HIntermediate = 4Full-sized
O Ho: HComputerized * HElectronic
Ha: HComputerized = HElectronic
O Ho: HComputerized = HElectronic
Ha: "Computerized * HElectronic
O Ho: HComputerized = HElectronic = "Compact = HIntermediate = "Full-sized
H.: Not all the population means are equal.
O Ho: HCompact = HIntermediate = HFull-sized
Hai H compact * HIntermediate * HFull-sized
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 Reject Ho: There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
O Do not reject H.. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
O Reject H. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
O Do not reject H. 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 56 44 Full-sized 62 47 Use a = 0.05 to test for any significant differences. State the null and alternative hypotheses. O Ho: Hcompact * HIntermediate * HFull-sized Ha: "Compact = HIntermediate = 4Full-sized O Ho: HComputerized * HElectronic Ha: HComputerized = HElectronic O Ho: HComputerized = HElectronic Ha: "Computerized * HElectronic O Ho: HComputerized = HElectronic = "Compact = HIntermediate = "Full-sized H.: Not all the population means are equal. O Ho: HCompact = HIntermediate = HFull-sized Hai H compact * HIntermediate * HFull-sized 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 Reject Ho: There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. O Do not reject H.. There is not sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. O Reject H. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers. O Do not reject H. There is sufficient evidence to conclude that the mean tune-up times are not the same for both analyzers.
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