3710Final.SuI04B

# 3710Final.SuI04B - Print Name Signature Final Exam S.S...

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Use the information given in the paragraph below to answer first four questions. An investor is interested in finding out how Internet stocks performed in comparison to non- Internet technology stocks in the last quarter. Eleven non-Internet technology stocks and nine Internet stocks belonging to each category were randomly selected. Their total percentage returns for last quarter were tabulated and analyzed using Excel , assuming equal population variances , at the 10% significance level . The results are reproduced in the Table below. Use these results to answer the next four questions. Internet Technology 1.2 -1.4 -2.7 -4.3 3.4 -3.5 -4.6 4.3 -1.2 -4.5 -6.9 -3.2 -4.5 5.6 -5.9 t-Test: Two-Sample Assuming Equal Variances Internet Technology Mean -2.65 -1 Variance 12.7685714 17.6733333 Observations 8 7 Pooled Variance 15.0323077 Hypothesized Mean Difference 0 df 13 t Stat -0.8222796 P(T<=t) one-tail 0.21287164 t Critical one-tail 1.35017217 P(T<=t) two-tail 0.42574328 t Critical two-tail 1.7709317 1. The critical value of the appropriate test statistic to conduct the test of hypothesis for the belief that there is a difference in the mean returns is: A. -0.82 B. 0.213 C. 1.35 D. 0.4257 E. 1.77* 2. The calculated value of the appropriate test statistic to conduct the test of hypothesis for the
belief that there is a difference in the mean returns is: A. -0.82* B. 0.213 C. 1.35 D. 0.4257 E. 1.77 3. Assuming the p value associate with the calculated value of the test statistics was 0.41 what is the conclusion? A. Conclude there is insufficient evidence of a difference in the means because the p value is

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## This note was uploaded on 03/09/2011 for the course DSCI 3710 taught by Professor Dr.jay during the Spring '08 term at North Texas.

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3710Final.SuI04B - Print Name Signature Final Exam S.S...

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