Male and female students in a personal finance class were asked to count how muc

Question

Male and female students in a personal finance class were asked to count how much cash they carried.

1) Choose the appropriate hypotheses. Assume 12 is the variance of cash carried by males and 22 is the variance of cash carried by females. Choose one of the follow correct answer.

a) H0: 12 / 22 1 vs. H1: 12 / 22 < 1.

b) H0: 12 / 22 1 vs. H1: 12 / 22 > 1.

c) H0: 12 / 22 = 1 vs. H1: 12 / 22 1.

2) Specify the decision rule at = .01. (Round your answers to 3 decimal places.)

Reject the null hypothesis if Fcalc > ________ or Fcalc < __________(Fill in the blank)

Male 18.19 18.48 22.62 19.31 25.51 15.83 34.85 16.99 12.63 40.38 27.71 Female 21.88 15.17 15.49 15.05 15.53 21.53 16.75 17.76 16.64

Explanation / Answer

Answer :    1) c) H0 : sigma12/sigma22   =1 vs H1 : sigma12/sigma22 is not equal to 1

2)   reject the null hypothesis if Fcal > Ftab

Fcal = 10.656                     Ftab =2.53804

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