Step 1: Female
a) Health GDP is on the horizontal axis and Life expectancy is on the vertical axis.
b) It is reasonable to find a regression lien for the data if there is no strong curvature present in the scatterplot. We note that there is no strong curvature in the scatterplot of part (a) and thus it is reasonable to find a regression line for the data.
c) Let us first determine the necessary sums:
Next, we can determine
The estimate b of the slope
The mean is the sum of all values divided by the number of values:
The estimate a of the intercept
Replace
d) There appear to be an outlier to the far right in the graph, because the point lies much far too the right than all other points in the scatterplot. The outlier appears to be an influential observation as well, because the regression line doesn't follow the general pattern in points excluding the outlier.
e) Let us first determine the necessary sums:
Next, we can determine
Prove this version of the Bonferroni inequality:
Solve the given Alternate Coordinate Systems and give a correct answer 10) Convert the equation from Cartesian to polar coordinates solving for
Use the Student's t distribution to find