A study was performed to determine whether men and women differ in their repeata-bility in assembling components on printed circuit boards. Random samples of 25men and 21 women were selected, and each subject assembled the units. What is thesampling distribution for the ratio of the sample varianceS2men/S2women?

The required sampling distribution is 1.1057.

Step-by-step explanation:

Since we have given that

Number of men  = 25

Number of women = 21

And,

So, the sampling distribution for the ratio of the sample variance

So, the required ratio would be

Hence, the required sampling distribution is 1.1057.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.