Dr. easily seen test scores and AD-222 took the opportunity to test the old adage that girls are Smarte Dr. easily seen test scores and AD-222 used the opportunity to test the old adage that girls are smarter than boys on the subjects tested by the ACT. Suppose that the degrees of freedom for this problem is 28. Dr. Easy done the math and found the value of the test statistic was 2.69 (alpha equal to .05). What is the critical value (3 decimal places of importance)? If the average score for boys is lower than the average score for girls she may reject the null hypothesis? Yes or No
Critical value = 1.701
Yes, must reject the null hypothesis. Test statistic = 2.69 means P-value (area under the curve of probability) is less than alpha = 0.05.
Girls are smarter than boys
Lol :-)
Posted on September 3, 2010.
