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JG are my answers right
Message posted by Carol (via 64.12.104.37) on June 6, 2001 at 2:45 AM (ET)
JG thank you for helping me...can you tell me if my answers are right as far as the mean, std. dev, mode,range,low, Q1, median,Q3 and high
An energency room records the following nomber of admissions for 30 Saturday nights during one calendar year.
38 46 46 43 35 48 48 56 48 44 58 48 58 44 36 48 38 38 52 37 32 50 37 40 60 51 42 38 28 45
Mean 44.4
Std. Dev. 19.6
Mode 48
Range 32
Low 28
Q1 38
Median 44.5
Q3 48
High 60
Does the data appear symetric or skewed?
The data is symetric
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Re: JG are my answers right
Message posted by JG (via 128.8.22.17) on June 16, 2001 at 5:32 AM (ET)
The usual measure of skewdness if approximately 1/200 for your data. Also the midrange is 44 and midhinge is 43. This suggests that the data is symmetric. A mode of 48 contradicts this, but we know that the mode is an unreliable sort of average. You could get a better idea about you data by constructing an appropriate hystogram for the data. You appear to have used the 'describe' command of Minitab to get your results, so that it should be very easy for you to use Minitab or whatever statistical package you are using to constrct a hystogram, etc. for your data.
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