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

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

pi x^2

step-by-step explanation:

pi times x squared