A pet association claims that the mean annual costs of food for dogs and cats are the same. The results for samples of the two types of pets are shown at the right. At a = 0.10, can you reject the pet association's claim? Assume the population variances are not equal. Sample Statistics for Annual Food Costs Dogs Cats ₁$239 ₂ = $203 $2= $21 n₂ = 18 S₁ = $32 n₁ = 16

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