Prices for regular unleaded gasoline can vary widely from day to day and location to location. These data were obtained on June 1, 2001, from a sample of stations across the respective state (price is in dollars per gallon):
South Carolina: 1.46 1.47 1.42 1.51 1.55 1.52 1.48 1.47 1.53 1.50
Michigan: 1.69 1.79 1.72 1.76 1.80 1.59 1.89 1.72 1.63 1.55 1.91 1.92
A) Use these data to test for equality of variances.
B) What is the P value of your test and what conclusion do you draw?