A random sample of people from three different job classifications labeled A, B, and C was asked to indicate preferences for three brands of camping lanterns: Big Star, Lone Star, and Bright Star. The preferences were as follows:
Group A
Big Star, 54;
Lone Star, 67;
Bright Star, 39
Group B
Big Star, 23;
Lone Star, 13;
Bright Star, 44
Group C
Big Star, 69;
Lone Star, 53;
Bright Star, 59
Do these data indicate that there is a difference in ratings for the three different groups?
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