A sample of 60 items from population 1 has a sample variance of 8 while a sample of 40 items from population 2 has a sample variance of 10. If we want to test whether the variances of the two populations are equal, the test statistic will have a value of

H0:

H1:

The statistic would be given by:

Step-by-step explanation:

Information given

represent the sample size 1

represent the sample size 2

represent the sample variance 1

represent the sample variance 2

The statistic to check the hypothesis is given by:

Hypothesis to test

We want to test if the two variances are equal, so the system of hypothesis are:

H0:

H1:

The statistic would be given by:

d

step-by-step explanation:

d

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.