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Jul 07, 2012 · Critical value is - z(0.01) = -2.326. Answer: -2.326. b) Solution: The lowest level of significance at which the null hypothesis can be rejected is the p-value. Ho: p ≥ 0.22. Ha: p < 0.22. p-value = P(z < statistic) statistic = p - p 0 ( p o (1- p 0 )/n = 230 1189 -0.22 0.22(1-0.22)/1189 =-2.211 p-value = P(z ................
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