1 1 vote Statistics statistics + – 100% Accept Rate Accepted 8 answers out of 8 questions andystanley 1.1k points 6 9 11 answer comment Share 0 reply Please log in or register to add a comment.
Best answer 0 0 votes Given a confidence interval of 95% : $\alpha = 1 - 0.95 = 0.05$ $z_{\alpha/2} = z_{0.05 / 2} = z_{0.025} = 1.96$ Given a confidence interval of 99%: a = 1 - 0.99 = 0.01 z a/2 = 0.01 / 2 = z 0.005 = 2.576 andystanley answered Nov 29, 2018 andystanley 1.1k points 6 9 11 comment Share 0 reply Please log in or register to add a comment.
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