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What is the interpretation of the p-value of 0.888 in the context of the linear correlation coefficient for a data set of brain volumes (cm³) and IQ scores of six males?

User Soheilpro
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Final answer:

A p-value of 0.888 suggests that there is an 88.8% probability that the observed correlation occurred by chance, indicating that there is no significant statistical evidence to suggest a correlation between brain volumes and IQ scores for the sample of six males.

Step-by-step explanation:

The interpretation of a p-value of 0.888 for the correlation coefficient in a data set of brain volumes (in cm³) and IQ scores is that if the null hypothesis is true (there is no linear correlation), there is an 88.8% probability that the observed sample correlation occurred by random chance. This means that the correlation is not statistically significant because the p-value is much higher than the common significance levels (e.g., 0.05 or 0.01), which indicates that there is insufficient evidence to reject the null hypothesis and assert that there is a significant linear relationship between brain volume and IQ scores in the given sample of six males.

When comparing the p-value to a typical alpha level of 0.05, since the p-value is greater than 0.05, we do not have enough evidence to reject the null hypothesis. Therefore, we do not have enough proof to conclude that there is a significant correlation between brain volume and IQ scores in this sample.

User JonK
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