Q#2 A study of the effect of smoking on sleep patterns is conducted. The measure observed is the time, in minutes, that it takes to fall asleep. These data are obtained: Smokers: 69.3 56.0 22.1 47.6 53.2 48.1 52.7 34.4 60.2 43.8 23.2 13.8 Non Smokers: 28.6 25.1 26.4 34.9 28.8 28.4 38.5 30.2 30.6 31.8 41.6 21.1 36.0 37.9 13.9 i. By calculating mean for each data, which group do you think have better asleep time taken and why? Calculate standard deviation, variance and Co-efficient of variation for each group and compare them. Which group having greater value of relative dispersion and why? ii. ii.

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A study of the effect of smoking on sleep patterns is conducted. The measure observed is the time,
in minutes, that it takes to fall asleep. These data are obtained:
Smokers: 69.3 56.0 22.1 47.6 53.2 48.1 52.7 34.4 60.2 43.8 23.2 13.8
Non Smokers: 28.6 25.1 26.4 34.9 28.8 28.4 38.5 30.2 30.6 31.8 41.6
Q# 2
21.1 36.0
37.9 13.9
i.
By calculating mean for each data, which group do you think have better asleep time
taken and why?
Calculate standard deviation, variance and Co-efficient of variation for each group and
compare them.
Which group having greater value of relative dispersion and why?
Solve part (ii) through R also.
ii.
ii.
iv.
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Transcribed Image Text:A study of the effect of smoking on sleep patterns is conducted. The measure observed is the time, in minutes, that it takes to fall asleep. These data are obtained: Smokers: 69.3 56.0 22.1 47.6 53.2 48.1 52.7 34.4 60.2 43.8 23.2 13.8 Non Smokers: 28.6 25.1 26.4 34.9 28.8 28.4 38.5 30.2 30.6 31.8 41.6 Q# 2 21.1 36.0 37.9 13.9 i. By calculating mean for each data, which group do you think have better asleep time taken and why? Calculate standard deviation, variance and Co-efficient of variation for each group and compare them. Which group having greater value of relative dispersion and why? Solve part (ii) through R also. ii. ii. iv. Share Favorite Delete Edit More
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