Confidence interval formula proportion

    • [DOC File]Confidence Interval for a Proportion - De Anza

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      For instance, say you wished to give a confidence interval for the mean income of a college graduate. You might have:that the mean income of a college grad is between. 100% confidence$0 and $∞. 95% confidence$35,000 and $41,000. 90% confidence$36,000 and $40,000. 80% confidence$37,500 and $38,500. 0% confidence$38,000 (a point estimate)

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    • [DOCX File]Notes 8.2: Confidence Intervals with Proportions

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      To make the above statement more precise, we compute a confidence interval for the true proportion p. A 95% confidence interval for the proportion of green M&Ms is an interval of the form Estimate Margin of Error, or standard deviations).

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    • [DOCX File]Confidence Intervals for Proportions

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      Calculate and interpret a confidence interval estimate for the true proportion of all young adults age 18 to 24 who ever used online dating. Use a 95% confidence level. PRACTICE EXAMPLE 8: Suppose a survey of 500 people age 18 to 34 indicated that 32.2% of them live with one or both of their parents.

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    • Confidence Interval for a Proportion - Statology

      Author: Karl L. Wuensch Created Date: 10/06/2012 08:03:00 Title: Confidence Intervals for Proportions Last modified by: Karl L. Wuensch Company: ECU

      confidence interval proportion calculator

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