Biostatistics · NEET PG Preparation Community Medicine (PSM)
A study reports that the correlation coefficient (r) between maternal age and birth weight is -0.15 with a p-value of 0.40. How should this result be…
Practice question from Biostatistics (NEET PG Preparation Community Medicine (PSM)), with the correct answer and a step-by-step solution.
medium · MCQ · Q-D42536
A study reports that the correlation coefficient (r) between maternal age and birth weight is -0.15 with a p-value of 0.40. How should this result be interpreted?
- A.There is a strong inverse linear relationship that is statistically significant.
- B.There is a weak inverse linear relationship that is statistically significant.
- C.There is a weak linear relationship, but it is not statistically significant.Correct answer
- D.There is no relationship at all because r is negative.
Solution
A correlation coefficient of -0.15 indicates a very weak inverse linear relationship. Furthermore, the p-value of 0.40 is greater than 0.05, meaning the result is not statistically significant.
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