williamwavyy
04.07.2020 •
Mathematics
A sport analyst wants to determine the mean salary of a Baseball player for 2015. He believes an estimate of this average salary using a confidence interval is sufficient. How large a sample should he take to be within $497,000 of the actual average with 80% confidence? He calculates the standard deviation of salary for all baseball players for 2015 is about $5,478,384.55. Round your answer to whole number.
Solved
Show answers
More tips
- S Science and Technology Discovering the Anatomy of an LCD TV Screen...
- F Family and Home How to Raise a Genius? Discover the Secrets Here...
- F Food and Cooking How to Properly Cook Buckwheat?...
- H Health and Medicine How to Tan in a Tanning Bed? Tips and Recommendations...
- S Style and Beauty How to Sew a Balloon Skirt: Detailed Tutorial and Tips on Choosing the Right Fabric...
- P Philosophy Personal attitude towards Confession: how to prepare and undergo the procedure correctly?...
- F Food and Cooking How to Make Cottage Cheese at Home: Simple and Quick Recipe with Step By Step Instructions...
- H Health and Medicine Which Water Are You Drinking? Is it Worth Buying Bottled Water?...
- H Health and Medicine What Makes a Man a Man?...
- H Health and Medicine What to Take with You to the Maternity Hospital?...
Answers on questions: Mathematics
- M Mathematics MPM 10: Academic Mathematics Pasquale s cell phone plan charges him monthly using the relation y = 0.25x+20, where y is thetotal monthly bill and x is the number of minutes he used...
- M Mathematics Factor 6a^3-3a^2+8a-4 by grouping the answers are a. (2a-1) (3a^2+4) b. (2a+4) (3a^2-1) c. (6a^3-3a^2) (8a-4) d. cannot be factored i dotn know how to do it...
- M Mathematics 2.32.41 23.3.45 A 22 3044 212 B 35045 C 22 35.46 D. 2-35·36·45...
- E English The time and place in which a story occurs is called the setting context stage historical backdrop...
- C Computers and Technology If the soport of memory that a coputer has is 38 GB how wood it go with 500g RAM and + 67GB...
- E English You are Ramu, secretary of your school union, gems english school. Write a report on the environment awareness programme which was held in your school on the 5th Nov, 2020....
- S SAT TIME TO GO HOME GO BED IT BEEN A LOONG DAY...
Ответ:
The large sample size 'n' = 199.6569≅ 200
Step-by-step explanation:
Step(i):-
Given Standard deviation of salary for all baseball players for 2015 is about $5,478,384.55
Standard deviation of of salary for all baseball players for 2015
(S.D ) σ = $5,478,384.55
Given estimate of this average salary for all baseball players for 2015
= $497,000
Given Margin of error of error is = $497,000
Level of significance ∝ = 80%
The critical value Z₀.₂₀ = 1.282
Step(ii):-
Margin of error of error is determined by
Cross multiplication , we get
On calculation , we get
√n = 14.13
Squaring on both sides, we get
n = 199.6569
Conclusion:-
The large sample size 'n' = 199.6569≅ 200
Ответ:
10+120=130
180-130=50
Therefore the last angle must be 50°