In the isosceles trapezoid shown, GJ = 5 and HI = 9. Determine the length of the midsegment of the trapezoid. Question 10 options:

A)

7

B)

5

C)

14

D)

9

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.