Question

Help me plz

A nursing student is studying the relationship between the height and the weight of female students. And here is the table (in the pic) a- use your graphing calc. to state the equation of the line of best fit using least squares model (not just use the coefficients) b- what does the value of the slope of the equation in your model represent ? c- Use the equation to predict the weight of a 5 foot 5.5 inch female student d- An unknown female student states that she weighs 130 pounds. Estimate her height Plz help me show how to figure it out with the graph. calc

Answer 1

Height (x) 60 63 64 67 68 60 63 70 66 62
Weight (y) 115 125 145 145 150 100 135 155 140 110

Answer 2

a. you will have to check your calculators manual.
b. the slope is the ratio of height to weight.
c. you will have a formula in the form of w = mh + c. where m is the slope and c is a constant. just put in the height, and you will get the weight
d. so with your graph, just look at where 130 pounds is, move across to the line and then read off the height at this value

Answer 3

this is linear regression so you need to plot the ordered pairs

and then use the linear regression function on your calculator to get the equation of the line.

Answer 4

the last 2 parts need you equation from the 1st part..