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Question 7 7.5 pts Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with o = 2.0%. A random sample of 23 Australian bank stocks has a sample mean of x = 7.67%. For the entire Australian stock market, the mean dividend yield is u = 7.6%. Do these data indicate that the dividend yield of all Australian bank stocks is higher than 7.6%? Use a = 0.05. What is the value of the test statistic? O -0.035 O 0.168 O 0.007 O'-0.007 O 0.035 Previous Next