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Selecting a random sample

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Reference no: EM132514569

The BMWP car manufacturer stated that each liter of fuel consumed by its car could on average cover a distance of 13 km. To test this, the R / D division did testing by selecting a random sample of 7 cars with the following results:

Sample Trial results (km / l)

1 12.5

2 12

3 12.5

4 10.5

5 11.0

6 11.0

7 12.5

whether you can conclude that the fuel consumption of the car is more wasteful than stated by the manufacturer.

(Use alpha = 10% ).

Reference no: EM132514569

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