Dallas some fire trucks were painted yellow (instead ofred) to heighten their vi

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Dallas some fire trucks were painted yellow (instead ofred) to heighten their visibility. During a test period the fleetof red fire trucks made 153348 runs and had 20 accidents whilethe fleet of yellow fire trucks made 135035 runs and had 4accidents. At = .01 did the yellow fire trucks have asignificantly lower accident rate? (a) State the hypotheses. (b)State the decision rule and sketch it. (c) Find the sampleproportions and z test statistic. (d) Make a decision. (e) Find thep-value and interpret it. (f ) If statistically significant do youthink the difference is large enough to be important? If so towhom and why? (g) Is the normality assumption fulfilled?Explain.

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