In a Study of Low Tar Cigarettes, Five Cigarettes from Each

question 60

Multiple Choice

In a study of low tar cigarettes, five cigarettes from each of three brands were tested to see if the mean amount of tar per cigarette differs among the brands. i. The F critical value for alpha = 0.05 is 3.74.
ii. If F calculated is 4.75, the decision if $\alpha$ = 0.05 is to reject H₀.
iii. If the calculated F is 4.74, the decision if $\alpha$ = 0.01 is to reject H₀.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (ii) is a correct statement but not (i) or (iii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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