FILE (Use Excel) A ccess th e m iles per gallon (m pg) data on th e text w e b site labeled MPG.

a. State th e null and th e alternative h y p o th e se s in order to test w h e th e r or n o t th e variance o f m p g differs from 62 m p g 2.

b. Calculate th e relevant te st statistic.

c. U se Excel's fu n c tio n (either CHISQ.DIST.RT or CHISQ.DIST)

to calculate th e p -value.

d. Make a conclusion at α = 0.01.