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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
15 Nov 2021

Given information

The sample size(n)=64; sample standard deviation(s)=6; mean of the given sample()=20;

Step-by-step explanation

Step 1.

First, we have to conduct a hypothesis for a given proportion.

: (the null hypothesis)  the mean of bubbles per blow is greater than or equal to 22().

: (the alternate hypothesis) the mean of bubbles per blow is less than 22 ().

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