One of the psychologist's findings is that 18 months after the workshop, a sample of 49 job seekers who received training on setting career goals scored an average of 6.5 as measured on a 9-point job search satisfaction scale, with a standard deviation of 1.2.The typical job seeker scores 5.8 points. The psychologist finds that the estimated Cohen's d is:.
a) 0.583
b) 0.015
c) 4.084
d) 0.438

The psychologist finds that the estimated Cohen's d is 0.583.

Step-by-step explanation:

The Cohen's d is used to calculate the effect size, appied when a null hypothesis is rejected.

It can be calculated for this case of population mean as:

The psychologist finds that the estimated Cohen's d is 0.583.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.