Suppose a study reports that the average price for agallon of self-serve regular unleaded gasoline is $3.16. Youbelieve that the figure is higher in your area of thecountry. You decide to test this claim for your part of theUnited States by randomly calling gasoline stations. Your random survey of 25 stations produces the followingprices.
$3.27
$3.29
$3.16
$3.20
$3.37
3.20
3.23
3.19
3.20
3.24
3.16
3.07
3.27
3.09
3.35
3.15
3.23
3.14
3.05
3.35
3.21
3.14
3.14
3.07
3.10
Assume gasoline prices for a region are normallydistributed. Do the data you obtained provide enough evidence to reject the claim? Use a 1% level of confidence.