The fuel efficiencies for a sample of 27 compact, midsize, and large cars are entered into a statistical software package. Use the 0.05 significance level.

		Summary
Groups	Count	Sum	Average	Variance
Compact	12	266.3	22.19167	9.626196
Midsize	9	173.5	19.27778	7.511210
Large	6	100.6	16.76667	7.495

Additional results are shown below.

ANOVA
Source of Variation	SS	DF	MS	F	p-Value
Between Groups	164.4883	2	82.24415	10.169905	0.000632
Within Groups	194.0883	24	8.08701
Total	336.0950	26

a. What is the critical value and the test statistic? (Round the final answers to 2 decimal places.)

Critical value is .

The test statistic is .

b. Investigate whether there are any differences in the mean fuel efficiencies of the three cars.

The mean fuel efficiencies are (Click to select) not different different .

c. State the decision regarding the null hypothesis?

The null hypothesis of equal means is (Click to select) rejected not rejected .