A random sample of 829 births included 430 boys. Use a 0.05 significance level to test the claim that 51.4% of newborn babies are boys. Do the results support the belief that 51.4% of newborn babies are boys?

A random sample of 829 births included 430 boys. Use a 0.05 significance level to test the claim that 51.4% of newborn babies are boys. Do the results support the belief that 51.4% of newborn babies are boys?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A random sample of 829 births included 430 boys. Use a 0.05 significance level to test the claim that 51.4% of newborn babies are boys.

Do the results support the belief that 51.4% of newborn babies are boys?

Expert Solution

Step 1

$g i v e n d a t a, n = 829 x = 430 α = 0.05 \hat{p} = \frac{x}{n} = \frac{430}{829} = 0.5187 c l a i m : 51.4 % o f n e w b o r n b a b i e s a r e b o y s .$

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