Question: Find the expected frequency for the given Contingency Table, where the Observed frequency is 88 and 10. Use a 0.05 significance level to test the

Find the expected frequency for the given Contingency Table, where the Observed frequency is 88 and 10. Use a 0.05 significance level to test the claim that getting an infection (cold) is independent of the treatment group. What does the result indicates about the effectiveness of Echinacea as a treatment for colds?

Treatment Group
	Placebo	Echinacea:20%extract	Echinacea:60%extract
Infected	88	48	42
Not Infected	15	4	10

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