An advertising firm has decided to ask 92 customers at each…
An advertising firm has decided to ask 92 customers at each of three local shopping malls if they are willing to take part in a market research survey. According to previous studies, 38% of Americans refuse to take part in such surveys. Use a 0.01 significance level to test the claim that the proportions of those who are willing to participate are equal. Results Table Mall A Mall B Mall C Will participate 52 45 36 Will not participate 40 47 56
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