A sociologist sampled 1800 people who work in computer-related jobs and found that 30% of them have changed jobs in the last 6 months. We are interested in the proportion who have changed jobs. a) What parameter are we estimating? p b) What is the point estimate of that parameter? ô c) What is a success for this problem? changed jobs d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. f) Round to the fourth. We are 90% confident that the true proportion of those who work in computer related jobs and have changed jobs in the last 6 months is between and

A sociologist sampled 1800 people who work in computer-related jobs and found that 30% of them have changed jobs in the last 6 months. We are interested in the proportion who have changed jobs. a) What parameter are we estimating? p b) What is the point estimate of that parameter? ô c) What is a success for this problem? changed jobs d) How many successes were there? e) Find the margin of error for a 90% confidence interval, rounded to the 5th. Use your T-table for this. f) Round to the fourth. We are 90% confident that the true proportion of those who work in computer related jobs and have changed jobs in the last 6 months is between and

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.7: Probability

Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...

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