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A pharmaceutical firm is interested in the efficacy of a new drug and of a standard drug. The research division of the firm randomly selects two groups of volunteers .. | Quick Homework Help
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3) Independent random samples were collected from two populations and the following statistics calculated:
Sample 1: n1 = 12, = 10, s1 = 2.04; Sample 2: n2 = 15, = 12, s2 = 1.4
4) A restaurant owner is interested in determining whether there is any difference in the weekly sales of his restaurants at two locations. The weekly sales are normally distributed. The sales, in dollars, for seven randomly selected weeks are:
|Week||Restaurant 1||Restaurant 2|
Using a significance level of .01, is there evidence to support the conclusion that there is a significant difference in the weekly sales of the two restaurants?
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