A random sample of 16 companies was selected and asked for their annual dividend rate in three different industries: utilities,banking,and insurance.The ANOVA comparing the mean annual dividend rate among three industries rejected the null hypothesis.The Mean Square Error (MSE)was 3.36.The following table summarized the results: When comparing the mean annual dividend for companies in the utilities and insurance industries,the following 95% confidence interval can be constructed:
A)5.78 $\pm$2.160 * 2.40
B)5.78 $\pm$ 2.120 * 2.40
C)5.78$\pm$ 2.160 * 1.11
D)5.78$\pm$ 2.120 * 1.11

Question

A random sample of 16 companies was selected and asked for their annual dividend rate in three different industries: utilities,banking,and insurance.The ANOVA comparing the mean annual dividend rate among three industries rejected the null hypothesis.The Mean Square Error (MSE)was 3.36.The following table summarized the results:  When comparing the mean annual dividend for companies in the utilities and insurance industries,the following 95% confidence interval can be constructed:
A)5.78 $\pm$2.160 * 2.40 
B)5.78 $\pm$ 2.120 * 2.40 
C)5.78$\pm$ 2.160 * 1.11 
D)5.78$\pm$ 2.120 * 1.11

Quizplus · Accepted Answer

The Answer of A random sample of 16 companies was selected and asked for their annual dividend rate in three different industries: utilities,banking,and insurance.The ANOVA comparing the mean annual dividend rate among three industries rejected the null hypothesis.The Mean Square Error (MSE)was 3.36.The following table summarized the results:  When comparing the mean annual dividend for companies in the utilities and insurance industries,the following 95% confidence interval can be constructed:
A)5.78 $\pm$2.160 * 2.40 
B)5.78 $\pm$ 2.120 * 2.40 
C)5.78$\pm$ 2.160 * 1.11 
D)5.78$\pm$ 2.120 * 1.11

A Random Sample of 16 Companies Was Selected and Asked ±\pm±

A Random Sample of 16 Companies Was Selected and Asked $\pm$