A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 10% margin of error at a 95% confidence level, what size of sample is needed? We wish to estimate what percent of adult residents in Ventura County like chocolate. Out of 400 adult residents sampled, 272 like chocolate. To construct a 90% confidence interval for the proportion (p) of adult residents who like chocolate in Ventura County, you need to use which one of the following calculator?Chi-Square Test for IndependenceChi-Square Test for Goodness of FitOne-Way ANOVAHypothesis Test for a Population Mean Given StatisticsTwo Independent Proportions ComparisonTwo Dependent Sample Means Comparison Given DataConfidence Interval for a Population ProportionConfidence Interval for a Population Mean Given DataHypothesis Test for a Population ProportionHypothesis Test for a Population Mean Given DataTwo Independent Sample Means Comparison Given DataConfidence Interval for a Population Mean Given StatisticsTwo Independent Sample Means Comparison Given StatisticsEnter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.Confidence interval = Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p < Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.p = ±±

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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A political candidate has asked you to conduct a poll to determine what percentage of people support her.

If the candidate only wants a 10% margin of error at a 95% confidence level, what size of sample is needed?

We wish to estimate what percent of adult residents in Ventura County like chocolate. Out of 400 adult residents sampled, 272 like chocolate. To construct a 90% confidence interval for the proportion (p) of adult residents who like chocolate in Ventura County, you need to use which one of the following calculator?

Chi-Square Test for Independence
Chi-Square Test for Goodness of Fit
One-Way ANOVA
Hypothesis Test for a Population Mean Given Statistics
Two Independent Proportions Comparison
Two Dependent Sample Means Comparison Given Data
Confidence Interval for a Population Proportion
Confidence Interval for a Population Mean Given Data
Hypothesis Test for a Population Proportion
Hypothesis Test for a Population Mean Given Data
Two Independent Sample Means Comparison Given Data
Confidence Interval for a Population Mean Given Statistics
Two Independent Sample Means Comparison Given Statistics

Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.
Confidence interval =

Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. < p <

Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.p = ±±

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A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 10% margin of error at a 95% confidence level, what size of sample is needed?