What proportion of the participants in the study did physical activity several times?   What proportion of the Running or jogging participants exercised weekly?   What proportion of the participants who exercised daily were Yoga participants

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A researcher is concerned about Australians’ physical activity during the lockdown. S/he wants to understand whether the frequency of physical activity during the COVID-19 lockdown depends on the types of physical activity.

The following table shows the frequency of doing different types of physical activity during lockdown in a random sample of Australians (n= 218218). Use the table to answer the questions which follow.

 

What proportion of the participants in the study did physical activity several times?

 

What proportion of the Running or jogging participants exercised weekly?

 

What proportion of the participants who exercised daily were Yoga participants?

 

 

The researcher would like to answer the following research question: “Do Australians’ frequency of physical activity during lockdown depends on the exercise types?” S/he sets up the following null and alternative hypotheses to answer the research question.

?0:H0: There is no association between types of physical activity and frequency of physical activity during lockdown.

?1:H1: There is an association between types of physical activity and frequency of physical activity during lockdown.

4. What is the expected value for Yoga participants who exercised weekly?

 

5. The absolute value of the test statistic is equal to (type your answer with 3 dp)

6. The degrees of freedom is equal to (type your answer as an integer)

Frequency of physical activity during lockdown
Types of activity
Weekly
Several times
Daily
Yoga
10
48
46
Running or jogging
27
46
41
Transcribed Image Text:Frequency of physical activity during lockdown Types of activity Weekly Several times Daily Yoga 10 48 46 Running or jogging 27 46 41
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