The heights (in inches) and pulse rates (in beats per minute) for a sample of women were measured. using technology with the paired height/pulse data, the linear correlation coefficient is found to be 0.7200.720. is there sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women? use a significance level of alphaαequals=0.050.05.

There is evidence to support the claim that there is a linear correlation between the heights and pulse rates of women

Step-by-step explanation:

given that the heights (in inches) and pulse rates (in beats per minute) for a sample of 11 women were measured.

correlation coefficient r = 0.7200

(two tailed test at 5% significance level)

r difference = 0.7200

Std error of r =

Test statistic t = r difference/std error = 3.1128

df =9

p value=0.012458

since p <alpha, we reject H0

There is evidence to support the claim that there is a linear correlation between the heights and pulse rates of women

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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