Mathematics, 01.08.2019 04:20 kendalljanae

It is claimed that the national average for the price of gasoline in $2.66 per gallon. a sample of 25 gas stations in hays yielded a sample mean of $2.89, and it is known that national standard deviation is σ=0.48. compute the test statistic for this test

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It is claimed that the national average for the price of gasoline in $2.66 per gallon. a sample of 2...