Question: Please Help with this homework question. The attached excel file has what I have been able to complete. I am stuck on the rest of

Please Help with this homework question. The attached excel file has what I have been able to complete. I am stuck on the rest of the problem.

Refer to the Buena School District bus data (Data Set 3).

a. Find the median maintenance cost and the median age of the buses. Organize the data into a two-by-two contingency table, with buses above and below the median of each variable. Determine whether the age of the bus is related to the amount of the maintenance cost. Use the .05 significance level.

b. Is there a relationship between the maintenance cost and the manufacturer of the bus? Use the breakdown in part (a) for the buses above and below the median maintenance cost and the bus manufactures to create a contingency table. Use the .05 significance level.

c.Use the statistical software and the .05 significance level to determine whether it is reasonable to assume that the distributions of age of the bus, maintenance cost, and miles traveled last month follow a normal distribution.

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