×
Log in to StudySoup
Get Full Access to Elementary Statistics - 12 Edition - Chapter 5.5 - Problem 4cqq
Join StudySoup for FREE
Get Full Access to Elementary Statistics - 12 Edition - Chapter 5.5 - Problem 4cqq

Already have an account? Login here
×
Reset your password

If boys and girls are equally likely, groups of 400 births

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

Solution for problem 4CQQ Chapter 5.5

Elementary Statistics | 12th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

4 5 1 363 Reviews
21
2
Problem 4CQQ

Problem 4CQQ

If boys and girls are equally likely, groups of 400 births have a mean of 200 girls and a standard deviation of 10 girls. Is 232 girls in 400 births an unusually high number of girls?

Step-by-Step Solution:

Answer:

Step 1 of 1

Using the range rule of thumb to find the minimum usual value μ – 2σ and the maximum usual value μ – 2σ.

minimum:  mean - 2(standard deviation)

                 = 200 - 2(10)

                 = 180

maximum: mean + 2(standard deviation)

                 = 200 + 2(10)

                 = 220

Yes the result of 232 girls in 400 births unusually high of girls.

Step 2 of 1

Chapter 5.5, Problem 4CQQ is Solved
Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

If boys and girls are equally likely, groups of 400 births