Interpreting Significance Test Results
For a left-tailed significance test of a population mean, the test statistic is t = 1.82 with 24 degrees of freedom, and the p-value is 0.04. Based on these results, a student concludes there is strong evidence that the population mean is less than the hypothesized value. Which of the following identifies a flaw in the student’s reasoning?
A
The sample size is too small to draw any conclusion
B
The significance level wasn’t explicitly stated
C
The degrees of freedom should be n-1, not 24
D
The p-value for a left-tailed test with t = 1.82 cannot be 0.04
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