Question
The following is a sample of sanitation scores for 20 cruise ships. 97, 88, 81, 87,...
The following is a sample of sanitation scores for 20 cruise ships.
97, 88, 81, 87, 90, 89, 82, 88, 92, 92, 86, 82, 99, 86, 93, 82, 94, 90, 89, 92
A) Find the mean and standard deviation of the sanitation scores.
x = _____
S = _____
B) Calculate the intervals x̅ ± s , x̅ ± 2s, x̅ ± 3s :
x̅ ± s = ( ___ , ___ )
x̅ ± 2s = ( ___ , ___ )
x̅ ± 3s = ( ___ , ___ )
C) Find the percentage of measurements in the data set that fall within each of the intervals in part "B"
The percentage of the measurements that fall within the interval x̅ ± s is ___ %
The percentage of the measurements that fall within the interval x̅ ± 2s is ___ %
The percentage of the measurements that fall within the interval x̅ ± 3s is ___ %
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