A researcher measures the correlation between gender and student aptitude scores from 0 to 100 among 20 participants.If r_pb = .49,then what is the decision for this correlation test? A) retain the null hypothesis B) reject the null hypothesis C) there is not enough information to answer this question

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The correlation coefficient r is positive and greater than 0.3, indicating a moderate positive correlation between gender and student aptitude scores. With a sample size of 20, a correlation coefficient of 0.49 is statistically significant at the 0.05 level (two-tailed test) with a critical value of r = ±0.444. Therefore, we reject the null hypothesis and conclude that there is a significant correlation between gender and student aptitude scores in this sample.

A Researcher Measures the Correlation Between Gender and Student Aptitude