C is the winner...
A- Other type of sleep duration is not talked about here. CHUCK
B- We do not need the exact duration. The argument has a fact : Nowadays < 1950s .. Why number ? CHUCK
C- the chosen Sample size is not credible. The whole finding result may sway wrt data points counted ..There can be a lot variance for the relevance and success of the conclusion. Impacts the argument in every possible way! - Hold
D- Int. stat - Why do we even need this? It is about American anyway. CHUCK
...
A- Other type of sleep duration is not talked about here. CHUCK
B- We do not need the exact duration. The argument has a fact : Nowadays < 1950s .. Why number ? CHUCK
C- the chosen Sample size is not credible. The whole finding result may sway wrt data points counted ..There can be a lot variance for the relevance and success of the conclusion. Impacts the argument in every possible way! - Hold
D- Int. stat - Why do we even need this? It is about American anyway. CHUCK
...
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