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In Exercise, test the given claim.Baseball Player Births

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 18BSC Chapter 11.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 18BSC

Problem  18BSC

In Exercise, test the given claim.

Baseball Player Births In his book Outliers, author Malcolm Gladwell argues that more American-born baseball players have birthdates in the months immediately following July 31 because that was the cutoff date for nonschool baseball leagues. The table below lists months of births for a sample of American-born baseball players and foreign-born baseball players. Using a 0.05 significance level, is there sufficient evidence to warrant rejection of the claim that months of births of baseball players are independent of whether they are born in America? Do the data appear to support Gladwell’s claim?

 

Jan

Feb

March

April

May

June

July

Aug

Sept

Oct

Nov

Dec

Born in America

387

329

366

344

336

313

313

503

421

434

398

371

Foreign Born

101

82

85

82

94

83

59

91

70

100

103

82

Step-by-Step Solution:

Solution  18BSC

Step 1 of 1</p>

We are given a data set of American born players and non-American born players, and month of birth. We have to test the claim that months of birth of players are independent of whether they are born in America.

Step 1: To test the claim we need to fulfil certain assumptions.

1. We assume that the sample has been randomly selected because of the structure of the study.

2. The results are tabulated as frequencies.

3. The expected frequencies are more than five in every column.

Step 2 : We will define hypothesis as below

= Months of births of players are independent of players born in America.

= Months of births of players are not independent of players born in America.

Step 3 of 4

Chapter 11.3, Problem 18BSC is Solved
Step 4 of 4

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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In Exercise, test the given claim.Baseball Player Births

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