HP 39GS hp 39gs_user's guide_English_E_HDPMG39AE13.pdf - Page 141
One-Proportion Z-Interval, Menu name, Inputs, Results
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One-Proportion Z-Interval Menu name Inputs Z-INT: 1 π This option uses the Normal Z-distribution to calculate a confidence interval for the proportion of successes in a population for the case in which a sample of size, n, has a number of successes, x. The inputs are: Field name x n C Definition Sample success count. Sample size. Confidence level. Results The results are: Result Critical Z π Min π Max Description Critical value for Z. Lower bound for π. Upper bound for π. Two-Proportion Z-Interval Menu name Inputs Z-INT: π1 - π2 This option uses the Normal Z-distribution to calculate a confidence interval for the difference between the proportions of successes in two populations. The inputs are: Field name x1 x2 Definition Sample 1 success count. Sample 2 success count. Inference aplet 11-17