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(c) Show all steps to construct a 99% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (d) Construct an 80% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (e) As the level of confidence decreases what happens to the width of the confidence interval? (f) If the level of confidence stays constant and the sample size increases what happens to the width of the confidence interval?

(c) Show all steps to construct a 99% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (d) Construct an 80% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (e) As the level of confidence decreases what happens to the width of the confidence interval? (f) If the level of confidence stays constant and the sample size increases what happens to the width of the confidence interval?

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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(c) Show all steps to construct a 99% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (d) Construct an 80% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (e) As the level of confidence decreases what happens to the width of the confidence interval? (f) If the level of confidence stays constant and the sample size increases what happens to the width of the confidence interval?
Transcribed Image Text:(c) Show all steps to construct a 99% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (d) Construct an 80% confidence interval estimate of the proportion of all human resource professional believing that the appearance of a job applicant is most important for a good first impression. Check your solution using Excel and post a screenshot on Crowdmark. (e) As the level of confidence decreases what happens to the width of the confidence interval? (f) If the level of confidence stays constant and the sample size increases what happens to the width of the confidence interval?
3. In a Harris poll of 514 human resource professionals, 90% said that the appearance of a job applicant is most important for a good first impression. Answer the following questions by hand and post your solutions on Crowdmark. (a) Among the 514 human resource professionals who were surveyed, how many of them said that the appearance of a job applicant is most important for a good first impres- sion? (b) Verify that both np > 5 and nĝ > 5.
Transcribed Image Text:3. In a Harris poll of 514 human resource professionals, 90% said that the appearance of a job applicant is most important for a good first impression. Answer the following questions by hand and post your solutions on Crowdmark. (a) Among the 514 human resource professionals who were surveyed, how many of them said that the appearance of a job applicant is most important for a good first impres- sion? (b) Verify that both np > 5 and nĝ > 5.
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