that x has a normal distribution with = 2.3%. A random sample of 17 Australian bank stocks has a sample mean of = 7.74%. For the entire Australian stock market, the mean dividend yield is = 6.7%. Do these data indicate that the dividend yield of all Australian bank stocks is higher than 6.7%? Use = 0.05. 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?
a. 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.
b. 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.
c. The P-value is less than the level of significance and so the data are not statistically significant. Thus, we fail to reject the null hypothesis.
d. The P-value is less than the level of significance and so the data are statistically significant. Thus, we reject the null hypothesis.
e. The P-value is greater than the level of significance and so the data are not statistically significant. Thus, we fail to reject the null hypothesis