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A researcher intended to investigate the potential association between Age Group and Smoking Status. He collected...

A researcher intended to investigate the potential association between Age Group and Smoking Status. He collected data from 575 participants. The data was summarized in Table 2. Was the data in support of a statistically significant association between Age Group and Smoking Status? The significance level was 0.05. How do you determine the expected levels in the chi test?

Table . Age Group and Smoking Status

Non smoker

Occasional smoker

Frequent smoker

Younger than 35

23

45

35

35~50-years-old

33

44

65

51~65-years-old

43

63

90

Older than 65

72

27

35

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