The Edmunds. com NHTSA Complaints Activity Report contains consumer vehicle complaint submissions by automaker, brand, and category

Question:

The Edmunds. com NHTSA Complaints Activity Report contains consumer vehicle complaint submissions by automaker, brand, and category ( data extracted from edmu. in/ Ybmpuz). The following table, stored in Automaker1, represents complaints received by automaker for January 2013.

Automaker Number

American Honda................ 169

Chrysler LLC........................ 439

Ford Motor Company ........440

General Motors................... 551

Nissan Motors Corporation ......467

Toyota Motor Sales ............332

Other.................................... 516

a. Compute the percentage of complaints for each automaker.

b. What conclusions can you reach about the complaints for the different automakers?

The following table, stored in Automaker2, represents com-plaints received by category for January 2013.

Category Number

Airbags and seatbelts.................. 201

Body and glass.......................... 182

Brakes.................................................163

Fuel/ emission/ exhaust system..... 240

Interior electronics/ hardware........ 279

Powertrain...................................... 1,148

Steering.......................................... 397

Tires and wheels........................... 71

c. Compute the percentage of complaints for each category.

d. What conclusions can you reach about the complaints for different categories?

Corporation
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