Research.Spring2015: Mean, mode or median?

Mean, mode or median?

2015年 04月 29日(水曜日) 21:02 - 削除済みユーザの投稿

This question is from the practice exercises (topic 4):

A company wants to know if their customers rate their service as excellent, good, average, or poor. Would the ...

This question is from the practice exercises (topic 4):

A company wants to know if their customers rate their service as excellent, good, average, or poor. Would the company be more interested in the mean, the median, or the mode?

--> The answer is mode and median, with an explanation: Either the median or the mode. The mode would indicate the most common answer. If numbers were assigned as 4=excellent, 3=good, 2=average, and 1=poor, the median as the center value would provide useful information.

However, I do not think that Mode is the most suitable one for this, suppose that 100 votes are excellent but 99 are average and 99 are poor. Median is ok, but I think that Mean is more suitable, as Pages on FB use this one (with stars from 1 to 5).

What do you think about this, can you share with me?

Re: Mean, mode or median?

2015年 05月 7日(木曜日) 22:53 - 削除済みユーザの投稿

could you say state it more clearly? I don't understand when you said that: "100 votes are excellent but 99 are average and 99 are poor. Median is ok, but I think that ...

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could you say state it more clearly? I don't understand when you said that: "100 votes are excellent but 99 are average and 99 are poor. Median is ok, but I think that Mean is more suitable, as Pages on FB use this one (with stars from 1 to 5)."

Re: Mean, mode or median?

2015年 05月 9日(土曜日) 21:44 - 削除済みユーザの投稿

When i read the quiz i thought of Mode rightaway and i didnt even bother to read the explanation about median

The reason is when they are doing a survey, what they want to ...

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When i read the quiz i thought of Mode rightaway and i didnt even bother to read the explanation about median

The reason is when they are doing a survey, what they want to know (in this case) is what most customers think of the service. If they counted the Mean, the result would not be precise because there are only 4 options,

for eg: If 10 excellent, 4 good, 3 average, 2 poor=> Mode: excellent=> the service is above fine/ Mean: 4,75 => what can you refer from this number?

Your example above is not likely to be a suitable example in this case because the statistics like that barely or even never happen.

So i think mode is the only suitable answer for this question