Wondering how I could use Mean / Standard Deviation to analyze this data set and flag the "Unsatisfied" volumes that are the most off the mean.

NotSoBright95

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*****HI! Please note, you don't see my table w/ the data because I had to leave it as a comment bc it was too large to post in the thread! The comment is awaiting mod approval***and I was unable to figure out how to attach an excel file so had to post it as a comment. Sorry, per my user I'm truly not so bright - but always trying to learn :)

Hi,

I have a data set I'm trying to analyze. I put it into a pivot table in excel so what we see below are the responses from 68 customers based on if they were "Unsatisfied" with services or "Satisfied".

I'm showing how many times each customer was Unsatisfied or Satisfied by both percentage and volume, all numbers are being show as "% of row total".

Now, I want to analyze this data and see what story it's telling, namely by trying to ID the customers who have "Unsatisfied" percentages that are much higher than the average by stating the SD in relation to the mean. But I want to look at it from the perspective of taking into account those whose overall volume is high (I still haven't considered what should be deemed high...I may take the average for this but, for example, I wouldn't likely care about someone like customer 33 who has an unsatisfied % of 88.9 because their overall volume is only 9. I would care more about someone like customer 6 whose unsatisfied % is 44.19% with an overall volume of 43).

Can someone please confirm if my logic is correct?

I believe I should do the following:

1. Find Standard Deviation of the % of Unsatisfied Column (which is ~ 21%)
2. Find Average of the % of Unsatisfied Column (which is ~35%)
3.Then...idk what to do next

I think I need to look at it from the perspective of which customers have Unsatisfied percentages that are the furthest from the mean...but how would I do that by taking into account SD?? I'm trying to state the SD in relation to the mean??

Idk, I'm just trying to be as statistically accurate as possible.
 
Total % of Unsatisfied & SatisfiedTotal Count of Unsatisfied & Satisfied
Customers% of UnsatisfiedCount of Unsatsifed% of SatisfiedCount of Satisfied
Customer 117.07%3582.93%170100.00%205
Customer 232.08%3467.92%72100.00%106
Customer 319.55%2680.45%107100.00%133
Customer 412.23%2387.77%165100.00%188
Customer 537.74%2062.26%33100.00%53
Customer 644.19%1955.81%24100.00%43
Customer 745.24%1954.76%23100.00%42
Customer 811.52%1988.48%146100.00%165
Customer 946.15%1853.85%21100.00%39
Customer 1069.23%1830.77%8100.00%26
Customer 1142.50%1757.50%23100.00%40
Customer 1270.83%1729.17%7100.00%24
Customer 1312.70%1687.30%110100.00%126
Customer 1427.78%1572.22%39100.00%54
Customer 1540.00%1460.00%21100.00%35
Customer 1656.00%1444.00%11100.00%25
Customer 1726.00%1374.00%37100.00%50
Customer 1843.33%1356.67%17100.00%30
Customer 1941.38%1258.62%17100.00%29
Customer 2035.29%1264.71%22100.00%34
Customer 2134.38%1165.63%21100.00%32
Customer 2231.43%1168.57%24100.00%35
Customer 2345.83%1154.17%13100.00%24
Customer 2420.41%1079.59%39100.00%49
Customer 2550.00%1050.00%10100.00%20
Customer 2628.13%971.88%23100.00%32
Customer 2756.25%943.75%7100.00%16
Customer 2825.71%974.29%26100.00%35
Customer 2933.33%966.67%18100.00%27
Customer 3052.94%947.06%8100.00%17
Customer 3172.73%827.27%3100.00%11
Customer 3230.77%869.23%18100.00%26
Customer 3388.89%811.11%1100.00%9
Customer 3480.00%820.00%2100.00%10
Customer 3516.28%783.72%36100.00%43
Customer 3670.00%730.00%3100.00%10
Customer 3724.14%775.86%22100.00%29
Customer 3835.00%765.00%13100.00%20
Customer 3920.00%680.00%24100.00%30
Customer 4035.29%664.71%11100.00%17
Customer 4131.58%668.42%13100.00%19
Customer 4217.86%582.14%23100.00%28
Customer 4313.16%586.84%33100.00%38
Customer 4445.45%554.55%6100.00%11
Customer 4531.25%568.75%11100.00%16
Customer 4618.52%581.48%22100.00%27
Customer 4731.25%568.75%11100.00%16
Customer 4817.24%582.76%24100.00%29
Customer 4922.22%477.78%14100.00%18
Customer 5066.67%433.33%2100.00%6
Customer 5130.77%469.23%9100.00%13
Customer 5212.12%487.88%29100.00%33
Customer 5323.53%476.47%13100.00%17
Customer 5425.00%375.00%9100.00%12
Customer 5542.86%357.14%4100.00%7
Customer 5625.00%375.00%9100.00%12
Customer 5750.00%250.00%2100.00%4
Customer 5811.76%288.24%15100.00%17
Customer 595.71%294.29%33100.00%35
Customer 6011.76%288.24%15100.00%17
Customer 619.09%290.91%20100.00%22
Customer 6218.18%281.82%9100.00%11
Customer 6350.00%250.00%2100.00%4
Customer 6450.00%150.00%1100.00%2
Customer 65100.00%10.00%100.00%1
Customer 665.56%194.44%17100.00%18
Customer 6716.67%183.33%5100.00%6
Customer 680.00%100.00%13100.00%13
Grand Total26.43%63273.57%1759100.00%2391
 
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