> > > > Problem 20BSC

# Genetics and Handedness In a study of left-handedness as a

## Problem 20BSC Chapter 11.3

Elementary Statistics | 12th Edition

• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Elementary Statistics | 12th Edition

4 5 0 335 Reviews
15
3
Problem 20BSC

Problem  20BSC

Genetics and Handedness In a study of left-handedness as a possible inherited trait, the data in the table below were obtained (based on data from “Why Are Some People Left-Handed? An Evolutionary Perspective,” by Laurens and Faurie, Philosophical Transactions,Vol. 364). Use a 0.01 significance level to test the claim that left-handedness is independent of parental handedness. What do the results suggest about the inheritability of left-handedness?

 Parental Handedness Offspring Left-Handed? Father/Mother Yes No Right/Right 5360 50,928 Right/Left 767 2736 Left/Right 741 3667 Left/Left 94 289
Step-by-Step Solution:

Solution  20BSC

We are given a data set of genetics and handedness. We have to test the claim that left handedness is independent of parental handedness.

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

= Left handedness is independent of parental handedness.

= Left handedness is not independent of parental handedness.

Step 3 of 4

Step 4 of 4

#### Related chapters

×
Get Full Access to Elementary Statistics - 12th Edition - Chapter 11.3 - Problem 20bsc

Get Full Access to Elementary Statistics - 12th Edition - Chapter 11.3 - Problem 20bsc

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
We're here to help