The Indian River County Economic Development Board needs to estimate the proportion of all county residents who have earned at least a bachelor's degree. A random sample conducted by the Indian River County Economic Development Board found that 28.7% of all county residents held at least a bachelor's degree. Find three different confidence intervals one with sample size 150, one with sample size 542, and one with sample size 813. Assume that 28.7% of the county residents in each sample have earned at least a bachelor's degree. Notice how the sample size affects the margin of error and the width of the interval. Report confidence interval solutions using interval notation. Report all solutions in percent form, rounded to two decimal places, if necessary. - When n=150, the margin of error for a 95% confidence interval is given by When n=150, a 95% confidence interval is given by • When n = 542, the margin of error for a 95% confidence interval is given by When 7-542, a 95% confidence interval is given by When n813, the margin of error for a 95% confidence interval is given by When 1813, a 95% confidence interval is given by If the sample size is increased, leaving all other characteristics constant, the margin of error of the confidence interval will decrease If the sample size is increased, leaving all other characteristics constant, the width of the confidence interval will decrease
The Indian River County Economic Development Board needs to estimate the proportion of all county residents who have earned at least a bachelor's degree. A random sample conducted by the Indian River County Economic Development Board found that 28.7% of all county residents held at least a bachelor's degree. Find three different confidence intervals one with sample size 150, one with sample size 542, and one with sample size 813. Assume that 28.7% of the county residents in each sample have earned at least a bachelor's degree. Notice how the sample size affects the margin of error and the width of the interval. Report confidence interval solutions using interval notation. Report all solutions in percent form, rounded to two decimal places, if necessary. - When n=150, the margin of error for a 95% confidence interval is given by When n=150, a 95% confidence interval is given by • When n = 542, the margin of error for a 95% confidence interval is given by When 7-542, a 95% confidence interval is given by When n813, the margin of error for a 95% confidence interval is given by When 1813, a 95% confidence interval is given by If the sample size is increased, leaving all other characteristics constant, the margin of error of the confidence interval will decrease If the sample size is increased, leaving all other characteristics constant, the width of the confidence interval will decrease
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
Related questions
Question
Please no written by hand solution
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 1 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL