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Determine the alternative hypothesis:

A researcher wanted to determine if using an octane booster would increase gasoline mileage. A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster.

Miles / Gal Without	Miles / Gal With
21.2	23.8
25.4	25.6
20.9	22.4
27.6	28.3
22.8	24.5
27.3	28.8
23.4	25.2

State the alternative hypothesis?

a. H1: μD _ 0

b. H1: μD < 0

c. H1: μD = 0

d. H1: μD _ 0

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9172013

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