STAT 200 Week 1 Homework Problems.docx - Crystal Wold STAT 200 Week 1 Homework Problems June 9 2019 1.1.4 To estimate the percentage of households in

STAT 200 Week 1 Homework Problems.docx - Crystal Wold STAT...

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Crystal Wold STAT 200 Week 1 Homework Problems June 9, 2019 1.1.4 To estimate the percentage of households in Connecticut which use fuel oil as a heating source, a researcher collects information from 1000 Connecticut households about what fuel is their heating source. State the individual, variable, population, sample, parameter, and statistic Individual: Households in Connecticut Variable: heating source type Population: Set of all responses of Connecticut about heating source Sample: Set of 1000 responses of Connecticut households about heating source Parameter: Percentage of those that use fuel oil as a heating source calculated from the population of Connecticut households Statistic: Percentage of those that use fuel oil as a heating source calculated from the sample of 1000 Connecticut households 1.1.8 The World Health Organization wishes to estimate the mean density of people per square kilometer, they collect data on 56 countries. State the individual, variable, population, sample, parameter, and statistic Individual: Country Variable: density of people per square kilometer Population: The set of densities of people per square km of all countries Sample: The set of densities of people per square km of 56 countries Parameter: Mean density percentage of people per square kilometer from all countries
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