Statistics 350 - revised (March 3)

# Statistics 350 - revised (March 3) - Statistics 350 Excel...

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Statistics 350 – Excel Project One Part I: With the Original 82 data points: 1. The sample mean was 107.5854; sample variance was 697.0852; and the standard deviation was 26.40237. 2. By looking at the histogram, I would have to conclude that it is unimodal positively skewed. Gulcose Levels Frequen cy >63 2 64-75 6 76-87 17 88-99 9 100-111 12 112-123 15 124-135 9 136-147 4 148-159 5 160-171 3 3. A. The five-number summary is: Minimum: 63, 1 st Quartile: 85, Median: 105.5, 3 rd Quartile: 128, and Maximum: 170. B. After calculating the Inter Quartile Range, and determining the Upper and Lower Fence, I found no outliers in this set of data.

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Now add the extra 23 data points: 4. A. The sample mean was 108.1048; sample variance was 650.2485; and the standard deviation was 25.49997. B. By looking at the histogram, I would have to conclude that it bimodal positively skewed. Gulcose Levels Frequen cy >63 2 64-74 7 75-85 14 86-96 15 97-107 16 108-118 17 119-129 9 130-140 10 141-151 9 152-162 4
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## This note was uploaded on 10/19/2010 for the course STAT 350 taught by Professor Abercrombie during the Spring '08 term at UMBC.

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Statistics 350 - revised (March 3) - Statistics 350 Excel...

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