A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 10% margin of error at a 90% confidence level, what size of sample is needed? Hint: Video [] You measure 47 dogs' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 10.5 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean dog weight. Give your answer as a decimal, to two places ounces

A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 10% margin of error at a 90% confidence level, what size of sample is needed? Hint: Video [] You measure 47 dogs' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 10.5 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean dog weight. Give your answer as a decimal, to two places ounces

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.7: Probability

Problem 4SE: What is the difference between events and outcomes? Give an example of both using the sample space...

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