Question: Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with = 1.9%. A

Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with = 1.9%. A random sample of 10 bank stocks gave the following yields (in percents). 5.7 4.8 6.0 4.9 4.0 3.4 6.5 7.1 5.3.Sample mean x=5.38 . Mean divided yield is u=4.6 and use a=.01 ..

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