Thank you for the opportunity to help you with your question!
Hello. When you are talking about a set of data, I assume you have data from a set of observations. Say there are n number of values you have collected. Let X represent a value from this set. X is your random variable.
We assume X is normal because you want to calculate the Z-value or Z-score, and P-value.
The Z-score is found from the formula : Z-score = (X - (average)) / [(standard-deviation) / sqrt(n) ]
The p-value is found from the Z-score: p-value = P ( Z > (Z-score) ), you find the p-value from the z-score table., P-value is the area under the standard normal curve to the right of the z-score.
Please let me know if you need any clarification. I'm always happy to answer your questions.
Thanks for the reply ! My question is simple but the picture didn't load from last time. If you have a set of data for z,P,Pvj and need to find nL using an iteration calculation, how do you setup the summation? Do you add all your z values, all your P values, and all your Pv values then begin the iteration process? Or do you run the calculation separate times?
Does this make sense?
Nov 18th, 2015
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