Homework Answers
a)
Standard error of the mean = SEM = √x(N-x)/N3 = 0.009
α = (1-CL)/2 = 0.010
Standard normal deviate for α = Zα = 2.326
Proportion of positive results = P = x/N = 0.035
Lower bound = P - (Zα*SEM) = 0.014
Upper bound = P + (Zα*SEM) = 0.056
b) No
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