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Posted 01-12-2018 10:47 AM
(1571 views)

Hello,

I am new to data analysis and need help with the following.

I have a survey data summary table where i have results from state and area of that state. I am interested in yes response

It looks like following for each question

Participants Yes C.I No C.I.

STATE 7450 88% 83%-93% 12% 10% -14%

Area 668 82 80%-84% 18% 16% -20%

How do I calculate statistical difference in above two and decide if its statistically significant?

I can do it by calculating yes and no response number from percentages given and do chi square test but it wont give a robust results.

Really appreciate input and help.

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Chi Square is robust...and your N is large enough to obtain reliable estimates.

If you want to explore non-parametric methods, look at PROC NPAR1WAY.

@GARYV wrote:

Hello,

I am new to data analysis and need help with the following.

I have a survey data summary table where i have results from state and area of that state. I am interested in yes response

It looks like following for each question

Participants Yes C.I No C.I.

STATE 7450 88% 83%-93% 12% 10% -14%

Area 668 82 80%-84% 18% 16% -20%

How do I calculate statistical difference in above two and decide if its statistically significant?

I can do it by calculating yes and no response number from percentages given and do chi square test but it wont give a robust results.

Really appreciate input and help.

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Please do not post the same question multiple times. Note that I've merged these into a single post and moved them to the Statistical Procedures forum as that seems better suited.

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See the SURVEYFREQ procedure in SAS/STAT software.

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All you need is the counts or you could recreate the data in an approximate fashion if you have the 2x2 numbers.

@GARYV wrote:

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What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.