In Exercise, conduct the hypothesis test | Ch 11.2 - 10BSC

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

Problem 10BSC Chapter 11.2

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 10BSC

In Exercise?, ?conduct the hypothesis test and provide the test statistic, critical value, and/or P-value, and state the conclusion. Baseball Player Births? In his book ?Outliers,? author Malcolm Gladwell argues that more baseball players have birthdates in the months immediately following July 31, because that was the cutoff date for nonschool baseball leagues. Here is a sample of frequency counts of months of birthdates of American-born major league baseball players starting with January: 387, 329, 366, 344, 336, 313, 313, 503, 421, 434, 398, 371. Using a 0.05 significance level, is there sufficient evidence to warrant rejection of the claim that American-born major league baseball players are born in different months with the same frequency? Do the sample values appear to support Gladwell’s claim?

Step-by-Step Solution:

Solution 10BSC Step 1 By using = 0.05 significance level to test that there is sufficient evidence to warrant rejection of the claim that American-born major league baseball players are born in different months with the same frequency. Expected frequency = 387 + 312 + . . = 376.25 The results are listed in the following table. observed expected O - E (O - E)² / E 387 376.250 10.750 0.307 329 376.250 -47.250 5.934 366 376.250 -10.250 0.279 344 376.250 -32.250 2.764 336 376.250 -40.250 4.306 313 376.250 -63.250 10.633 313 376.250 -63.250 10.633 503 376.250 126.750 42.699 421 376.250 44.750 5.322 434 376.250 57.750 8.864 398 376.250 21.750 1.257 371 376.250 -5.250 0.073 4515 4515.000 93.072 Expected frequency = 376.25 is same for all categories. The Test Statistic here is 2 2 (i i ) = Ei = 93.072 Where O iObserved frequency Ei= Expected frequency

Step 2 of 2

Chapter 11.2, Problem 10BSC is Solved
Textbook: Elementary Statistics
Edition: 12th
Author: Mario F. Triola
ISBN: 9780321836960

This full solution covers the following key subjects: Baseball, Months, born, Players, american. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. The answer to “In Exercise?, ?conduct the hypothesis test and provide the test statistic, critical value, and/or P-value, and state the conclusion. Baseball Player Births? In his book ?Outliers,? author Malcolm Gladwell argues that more baseball players have birthdates in the months immediately following July 31, because that was the cutoff date for nonschool baseball leagues. Here is a sample of frequency counts of months of birthdates of American-born major league baseball players starting with January: 387, 329, 366, 344, 336, 313, 313, 503, 421, 434, 398, 371. Using a 0.05 significance level, is there sufficient evidence to warrant rejection of the claim that American-born major league baseball players are born in different months with the same frequency? Do the sample values appear to support Gladwell’s claim?” is broken down into a number of easy to follow steps, and 124 words. Elementary Statistics was written by and is associated to the ISBN: 9780321836960. The full step-by-step solution to problem: 10BSC from chapter: 11.2 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12th. Since the solution to 10BSC from 11.2 chapter was answered, more than 482 students have viewed the full step-by-step answer.

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