plz help use the above pic to answer this question
Posted: Wed May 11, 2022 11:26 am
plz help
use the above pic to answer this question
Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. Model A Model B Model Model D 23 18 30 25 25 16 28 26 24 19 32 25 26 20 27 28 Test the claim that the four different models have the same population mean. Use a significance level of 0.05. Conclusion: Ho Hi: Test statistic: P-value: Reject or Fail to Reject:
24. Use the information to answer the questions below using a p-value of 0.05. Tukey HSD(A.aov) Tukey multiple comparisons of means 95% family-wise confidence level SModel p adj diff lwr upr B-A -6.25 -9.809587 -2.6904126 0.0010747 C-A 4.75 1.190413 8.3095874 0.0088290 D-A 1.50 -2.059587 5.0595874 0.6085251 C-B 11.00 7.440413 14.5595874 0.0000047 D-B 7.75 4.190413 11.3095874 0.0001575 D-C -3.25 -6.809587 0.3095874 0.0777382 a. Which Model has gas mileage that is not significantly different from all the others? b. Which models are not significantly different from your anwer to part a? c. Which model is significantly different from your answer to part a?
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24. Use the information to answer the questions below using a p-value of 0.05. Tukey HSD(A.aov) Tukey multiple comparisons of means 95% family-wise confidence level SModel p adj diff lwr upr B-A -6.25 -9.809587 -2.6904126 0.0010747 C-A 4.75 1.190413 8.3095874 0.0088290 D-A 1.50 -2.059587 5.0595874 0.6085251 C-B 11.00 7.440413 14.5595874 0.0000047 D-B 7.75 4.190413 11.3095874 0.0001575 D-C -3.25 -6.809587 0.3095874 0.0777382 a. Which Model has gas mileage that is not significantly different from all the others? b. Which models are not significantly different from your anwer to part a? c. Which model is significantly different from your answer to part a?