I am trying the check whether my simple size is adequate. I have activity patterns for a set of people (An activity pattern is something like (1,2,9,3,4)). These activity patterns are qualitative data and due to that reason I cannot calculate a Standard Deviation using below equaltion.
(Z-score)2 x SD x (1-SD)/ME2 = Sample Size
I know there are some thumb rules to get the sample size but I am wandering whether there is a more mathematical way to get it. I would be grateful if anyone can suggest me a method. I checked FAQs , a text book, other threads, and googled it but could not find a proper answer.
Thank you for your attention.
(Z-score)2 x SD x (1-SD)/ME2 = Sample Size
I know there are some thumb rules to get the sample size but I am wandering whether there is a more mathematical way to get it. I would be grateful if anyone can suggest me a method. I checked FAQs , a text book, other threads, and googled it but could not find a proper answer.
Thank you for your attention.