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Let X be a random variable representing dividend yield of Australian bank stocks. We may assume that X has a normal distribution with standard deviation o = 2.4% . A random sample of 19 Australian bank stocks has a sample mean of = = 8.71%. For the entire Australian stock market, the mean dividend yield is / = 5.9%. Do these data indicate that the dividend yield of all Australian bank stocks is higher than 5.9%? Use a = .05. Are the data statistically significant at the given level of significance? Based on your answers, will you reject or fail to reject the null hypothesis? The p-value is less than the level of significance and so the data are not statistically significant. Thus, we reject the null hypothesis. The p-value is less than the level of significance and so the data are statistically significant. Thus, we fail to reject the null hypothesis. The p-value is greater than the level of significance and so the data are statistically significant. Thus, we fail to reject the null hypothesis. The p-value is greater than the level of significance and so the data are not statistically significant. Thus, we reject the null hypothesis. The p-value is less than the level of significance and so the data are statistically significant. Thus, we reject the null hypothesis