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

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1