Body frame size is determined by a person's wrist circumference in relation to height. A researcher measures the wrist circumference and height of a random sample of individuals. The data is displayed below.

55.566.577.588.595560657075808590Wrist Circumference (in)Height (in)

Coefficients:

	Estimate	Std Err	t-value	p-value
(Intercept)	29.7403	5.1272	5.8004	1.74 E -6
wrist	6.0758	0.7135	8.5154	7.70 E -10

Residual standard error: 4.101 on 33 degrees of freedom
R-squared: 0.6872, Adjusted R-squared: 0.6778
F-statistic: 72.512 on 1 and 33 DF, p-value: 7.70 E -10

a) Write the equation of the best-fit line. Use x and y for your variables.
b) Calculate the correlation coefficient.
c) Identify the coefficient of determination.
d) Use the equation of the best-fit line to predict the height of a person with a wrist circumference of 6 inches. inches