Essay
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From the top 1000 companies in valuation,a comparison of the mean dividend yield of the top and bottom ten electric utility companies is desired.Let 1 = top ten,and 2 = bottom ten,electric utility companies respectively.The data shown below are for two independent samples,which are drawn at random from populations that are normally distributed.
-25 consumers were provided with a package containing two different brands of instant coffee.A week later,they were asked to rate the taste of each coffee on a scale of 1 (poor taste)to 10 (excellent taste).Is this an example of independent samples or dependent samples? Explain.
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