Superman weakness (Observed)

Kryptonite exposure Yes NoTotal

Yes 20 1838

No 173855

Superman weakness (Expected)

Kryptonite exposure Yes No

Yes 15.12 22.88

No 21.88 33.12

ho: Kryptonite exposure (yes/no) and weakness of Superman (yes/no) are independent

h1: Kryptonite exposure (yes/no) and weakness of Superman (yes/no) are not independent (I would choose this one b/c they are associated)

What is the p-value for the Pearson Chi-Square test statistic using Excel? (what is the excel formula please....need to know how to work it)

a.0.054

b.0.035

c.0.450

Using this p-value for the calculated Pearson Chi-Square, what is the hypothesis decision for alpha = .05?

Reject the null hypothesis or

Fail to reject the null hypothesis