Question

police sometimes measure shoe prints at crime scenes so that they can learn something about criminals. listed below are shoe print lengths, foot lengths, and heights of males. construct a scatterplot, find the value of the linear correlation coefficient r, and find the p - value of r. determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. based on these results, does it appear that police can use a shoe print length to estimate the height of a male? use a significance level of α = 0.05.
shoe print (cm) | foot length (cm) | height (cm)
29.7 | 25.3 | 176.5
29.7 | 25.8 | 176.7
32.7 | 27.7 | 181.2
33.1 | 26.7 | 177.5
27.9 | 25.7 | 176.6
construct a scatterplot. choose the correct graph below.
a. scatterplot a
b. scatterplot b
c. scatterplot c
d. scatterplot d

Explanation:

Step1: List data points

Shoe Print (x): 29.7, 29.7, 32.7, 33.1, 27.9
Height (y): 176.5, 176.7, 181.2, 177.5, 176.6

Step2: Match to scatterplot

Check which graph plots these (x,y) pairs correctly. The correct plot aligns each x with its y.

Answer:

B. [Graph B as per the image]