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A motor car company claims that their cars run an average of 30 miles per gallon of gasoline.

A random sample of 25 ca

By Aubrey

A motor car company claims that their cars run an average of 30 miles per gallon of gasoline.

A random sample of 25 cars was tested and found to run an average of 29.6 miles to a gallon

of gasoline with standard deviation = 1 miles. With 1% of significance, should we accept

the claim of the motor car company? If the level of significance is 5%, will there be any change

in the decision? ​

About the author
Aubrey

CONVERSATION: Imagine you are a reporter of ‘SURFER MAGAZINE’. Write a brief conversation between you and Nick about his achieveme

find the mod of the following data
12, 23, 30, 15, 23, 16, 25.​

1 thought on “A motor car company claims that their cars run an average of 30 miles per gallon of gasoline. <br /><br />A random sample of 25 ca”

  1. Step-by-step explanation:

    I have a different Question than the ones listed above.

    Since this Q asks for avg miles per gallon, why can’t we just use the other formula of avg speed ie 2.speed1.speed2/speed1+speed2?

    Why can’t we use the same formula tweaked for gallons eg (2.2/5.5.4)/(2/5+5/4)

    Reply

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