Homework Help is Here – Start Your Trial Now!
Math
Statistics
(a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.

(a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
 
 
You may need to use the appropriate appendix table or technology to answer this question. Suppose we are interested in the Annual Salary of Electronics Associated, Inc. (EAI) managers and we find that for a sample of n = 30 managers, there was 0.5034 probability of obtaining a sample mean within + $500 of the population mean (see the figure below). Sampling distribution of I Oz= 730.30 P(51,300 <I<52,300) P(T<51,300) 51,300 51,800 52,300 For parts (a) and (b), let the population mean be 51,800 and o = 4,000. (Round your answers to four decimal places.) (a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.
Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. Suppose we are interested in the Annual Salary of Electronics Associated, Inc. (EAI) managers and we find that for a sample of n = 30 managers, there was 0.5034 probability of obtaining a sample mean within + $500 of the population mean (see the figure below). Sampling distribution of I Oz= 730.30 P(51,300 <I<52,300) P(T<51,300) 51,300 51,800 52,300 For parts (a) and (b), let the population mean be 51,800 and o = 4,000. (Round your answers to four decimal places.) (a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS