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learn.zybooks.com Onli. Grades - MAT-243-16020 Applied Statistics for STEM 2... 5.3. Confidence intervals for population proportions 3: Applied Statistics for Science, Technology, Engineering, and M... > zyBooks catal vals for population proportions CHALLENGE ACTIVITY 5.3.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 z* = 1.645 0.95 z* = 1.960 0.99 = 2.576 Jump to level 1 In a poll of 1000 randomly selected voters in a local election, 539 voters were in favor of fire department bond measures. o-o-o-o- What is the sample proportion p? Ex 0.123 What is the margin of error m for the 95% confidence level? Ex: 0.1230 1 3 Check Try again Feedback? ces MacBook Pro

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0.539 ef » Sample proposolim = 539 1000 Meloy 2) in the margin af enor Î (1-P) cathorit r = critical value Zotoru etto of combidence Colors & C 1.968 aing : 0°539C1-8'539) 339 = 1.3308 CS Scanned with CamScanner