Final answer:
To calculate the correlation coefficient between physician/population ratios and maternal death rates by state, use an online statistical calculator.
Step-by-step explanation:
The question is asking for research on the physician/population ratios and maternal death rates by state. To calculate the correlation coefficient, an online statistical calculator can be used.
A correlation coefficient measures the strength and direction of the relationship between two variables. A positive correlation means that as one variable increases, the other variable also increases.
A negative correlation means that as one variable increases, the other variable decreases. The significance of the correlation can be determined by looking at the p-value, which indicates the probability of obtaining a correlation coefficient as extreme as the one calculated if there was no true relationship in the population.
A p-value less than the chosen significance level (e.g., p < .01, p < .05, p < .10) suggests that the relationship between the variables is statistically significant.