A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the amount of money spent on lunches. To test this claim, she selects random samples of receipts for business related meals. The variance of nine business dinners was $6.12 and the variance of 12 business lunches was $0.87. What is the test value for this test

the correct answer is 828.07

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23