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Exhibit 6.5
USE THE INFORMATION BELOW FOR THE FOLLOWING PROBLEM(S) Rit = return for stock i during period t
Rmt = return for the aggregate market during period t
-Refer to Exhibit 6.5. What is the abnormal rate of return for Stock A during period t using only the aggregate market return (ignore differential systematic risk) ?
Two-sided Test
A hypothesis test in which the critical area of a distribution is two-sided and tests whether a sample is either greater than or less than a certain range of values.
One-sided Test
A hypothesis test in which the alternative hypothesis specifies either an increase or a decrease, but not both.
P-value
The probability of obtaining a statistical summary (e.g., the difference in means) at least as extreme as the one observed in a study assuming the null hypothesis is true.
Two-sided Significance Tests
Statistical tests that assess the significance of an effect in either direction, allowing for the evaluation of both positive and negative differences.
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