Testing hypothesis of average price of gasoline

Reference no: EM1320482

Q1) Average price of regular gasoline in continental US states and District of Columbia was $3.74 on August 18, 2008. Alaska and Hawaii are not included as gas prices there are much higher than continental US. Price of gasoline in eleven western states of US on same day is given below. Test hypothesis that average price of gasoline in western states is higher than national average for Continental USA and the District of Columbia, i.e., higher than $3.74. Utilize level of significance a = 0.05.

California	$4.04
Arizona	$3.72
Colorado	$3.83
Idaho	$4.01
Montana	$3.97
Nevada	$3.84
New Mexico	$3.77
Oregon	$3.92
Utah	$4.04
Washington	$3.99
Wyoming	$3.90

Reference no: EM1320482

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