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. 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. What is the expected value for Yoga participants who exercised weekly? (3dp) The absolute value of the test statistic is equal to (type your answer with 3 dp) The degrees of freedom is equal to (type your answer as an integer) We are 95% confident that among participants who did Running or jogging, the proportion who exercised several times is between ..... (lower limit) and ..... (upper limit). Type your answers with 3dp. just question 4 please :)
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.
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.
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What is the expected value for Yoga participants who exercised weekly? (3dp)
-
The absolute value of the test statistic is equal to (type your answer with 3 dp)
-
The degrees of freedom is equal to (type your answer as an integer)
- We are 95% confident that among participants who did Running or jogging, the proportion who exercised several times is between ..... (lower limit) and ..... (upper limit). Type your answers with 3dp.
just question 4 please :)
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