Please show me the process, thank you. For the Car Reliability study used in Que

Question

Please show me the process, thank you.

For the Car Reliability study used in Questions 23-25, another variable that was recorded was a Road-Test score given for the car by a professional test driver. A 1-way ANOVA of Road-Test score versus Size was done in Minitab with the results below. Use these results to answer Questions 24 and 25. One-way ANOVA: Road-Test Score versus Size Analysis of Variance Source DF Adj SS Adj MS F-Value P-Value Size Erro 51 Total 53 10.65 1275 637.48 053 59.86 4328 2 0.000 Tukey Pairwise Comparisons Grouping Information Using the Tukey Method and 95% Confidence N Mean Grouping Size Upscale Sedan 21 81.14A Family Sedan 20 80.45 A Small Sedan 13 69.46 Means that do not share a letter are significantly different 24. Based on the Tukey Grouping Information, in the plot of Simultaneous 95% confidence intervals for the pairwise differences between the mean Road Test scores, we will see which of the following A. Upscale Sedan - Family Sedan will include 0 B. Upscale Sedan Family Sedan will not include O C. Upscale Sedan - Small Sedan wl not include 0. D. Both A and C. E. Both B and C 25. Based on these ANOVA results, in a regression of Road-Test score vs. Size with Small Sedan as the reference category, which of the statements below is true about the slope of the Family Sedan predictor? A. It is 10.99 and it is significant at the 5% level. B. It is-10.99 and it is significant at the 5% level C. It is 10.99 and it is not significant at the 5% level. D. It is-10.99 and it is not significant at the 5% level

Explanation / Answer

24:

It is written in the output that is means do not share the letter than there is signficant difference between the mean. Means Upscale sedan - Small sedan does not share same letter (one have A and second has B) so they are significantly different.

Means Family sedan - Small sedan does not share same letter (one have A and second has B) so they are significantly different.

That is correct option is A.

25)

Since p-value of F is 0.000 so model is significant. That is slope is also signficant to the model.

For chosing correct option we need coeffcient table.

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