
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Transcribed Image Text:Do bears treat their cubs equally? A random sample of
50 caretaking acts reveals that a bear with 3 cubs
bestowed 15 caretaking acts upon the oldest cub, 18
upon the middle cub, and 17 upon the youngest cub.
x2 Test for Goodness of Fit
Random:
We have a random sample of
Do these data provide convincing evidence that this bear
does not take care of her cubs equally? Use a = 0.05.
10%:
v < 10% of all caretaking acts.
Large Counts:
All expected counts are at least 5 because the
smallest expected count is
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