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Food Shelf Life Stability Study

K

Kastejon

Registered
#1
#1
Hi,

Attached accdb example of a stability study.

The data were plotted and an upper 95% confidence interval was constructed about the regression line. A two-sided confidence limit.

[FONT=&quot]If the confidence interval is ignored, the stability estimate is computed from the regression fit statistics (slope, Y-intercept) as:

(Allowable Drift Limit – Y-intercept)/Slope = Stability Estimate.

I would also like to answer a question. In Minitab to calculate the shelf life, use the quadratic equation.

[/FONT]

https://support.minitab.com/en-us/m..._SS_mf.dita_dctm_Chron0900045780316fa6_10.png

r_percent_SS_mf.dita_dctm_Chron0900045780316fa6_10.png​

Some has an example of calculation with this equation?


Thanks,
 

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QMS for Medical Device Companies
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R

reynald

Quite Involved in Discussions
#2
#2
I think most people here don't know about accdb files. (I dont)
Either post it as excel, or better yet show the image of the regression line together with the prediction intervals so that we can comment on it
 
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