Data from gapminder.org on 184 countries was used to examine if there is an association between (average) female life expectancy (that is, the average lifespan of women in the country) and the average number of children women give birth to for the year 2019. A scatterplot of the data and a regression table from the Corr/Regression applet follows.
-Is there significant evidence of an association between female life expectancy and the average number of children women give birth to for the year 2019?
A) Yes, since the slope of the regression line is negative.
B) Yes, since the intercept of the regression line is positive.
C) Yes, since the correlation is negative.
D) Yes, since the p-value for the intercept is less than 0.01.
E) Yes, since the p-value for the slope is less than 0.01.

Question

Data from gapminder.org on 184 countries was used to examine if there is an association between (average) female life expectancy (that is, the average lifespan of women in the country) and the average number of children women give birth to for the year 2019. A scatterplot of the data and a regression table from the Corr/Regression applet follows. 
-Is there significant evidence of an association between female life expectancy and the average number of children women give birth to for the year 2019?
A) Yes, since the slope of the regression line is negative. 
B) Yes, since the intercept of the regression line is positive. 
C) Yes, since the correlation is negative. 
D) Yes, since the p-value for the intercept is less than 0.01. 
E) Yes, since the p-value for the slope is less than 0.01.

Quizplus · Accepted Answer

The p-value for the slope is less than 0.01, which means that there is a statistically significant association between female life expectancy and the average number of children women give birth to.

Data from Gapminder