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In order to test the effectiveness of the Flu vaccine, it was administered to 600 people who were selected at random. At the
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Answer #1

Proportion (p0) = 0.8

Total number of sample (n) = 600

number of favourable events (X) = 504

\\\hat p = X/n = 504/600 = 0.84

We are interested in testing the hypothesis

\\Null\;Hypothesis --> H_0: p = p_0 \\Alternate\;Hypothesis --> H_1: p > p_0

\\\\Z_0 = \frac{X - np_0}{\sqrt{np_0(1-p_0)}} \\\\Z_0 = \frac{504-600.0.8}{\sqrt{600.0.8(1-0.8)}} \\\\Z_0 = 2.4495

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