THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
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.
-Using results of Excel or Minitab to conduct a two-sample t-test for data in the table above,test
H0 : μ1 - μ2 = 0 vs.H1 : μ1 - μ2 ≠ 0 at the 5% significance level.What is your conclusion?
Definitions:
Q6: Test the null hypothesis with the alternative
Q19: Find a 99% confidence interval for the
Q24: Are the 95% confidence intervals for the
Q51: Interpret the estimated regression coefficient b<sub>2</sub>.
Q55: Test the company's claim at the 5%
Q91: What is the value of the coefficient
Q130: Which of the following statements is true?<br>A)
Q131: A null hypothesis is rejected at the
Q219: Does the data provide enough evidence to
Q221: Test the null hypothesis that β<sub>2</sub> is