Question: A study was done on children, aged 6 months to 18 years, who had nonlethal scorpion stings. Each child was randomly assigned to receive an

A study was done on children, aged 6 months to 18 years, who had nonlethal scorpion stings. Each child was randomly assigned to receive an experimental antivenom or a placebo. "Good" results were no symptoms after four hours and no detectable plasma venom.

Antivenom Placebo Total No Improvement Improvement Total 15 Antivenom Placebo Bad Good

The alternative hypothesis is that the antivenom leads to improvement. The p-value for a one-tailed Fisher's Exact Test with these data is 0.009.
a. Suppose the study had turned out differently, as in the following table.

0 Antivenom Placebo Bad Good

Would Fisher's Exact Test have led to a p-value larger or smaller than 0.009? Explain.
b. Suppose the study had turned out differently, as in the following table.

Would Fisher's Exact Test have led to a p-value larger or smaller than 0.009? Explain.
c. Try the two tests, and report the p-values. Were you right? Search for a Fisher's Exact Test calculator on the Internet, and use it.

Antivenom Placebo Total No Improvement Improvement Total 15 Antivenom Placebo Bad Good 0 Antivenom Placebo Bad Good

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