An obstetrician wants to know whether or not the proportions of children born on each day of
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Question:
An obstetrician wants to know whether or not the proportions of children born on each day of the week are the same. She randomly selects 500 birth records and obtains the data shown in table. Is there reason to believe that the day on which a child is born occurs with equal frequency at the alpha= 0.01.
Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | |
Observed count (O) | 46 | 76 | 83 | 81 | 81 | 80 | 53 |
PLEASE FOLLOW THE STEPS BELOW:
- You need formulate null hypothesis and alternative hypothesis
- Select alpha
- Compute expected count
- Compute chi-square
- Find p-value
- Make a decision.
Related Book For
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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