Question

how do you find the p-value of number of observations isn't given?

Answer 1

P value is affected by sample size and the magnitude of effect... generally larger the sample size the more likely a study will find a significant relationship if one exists...as the sample size increases the impact of random error is reduced...if standard deviation is given...then for z test if test statistic is given..then we find p value using this test statistic....then P value=2P(z >lzol) for two tailed test....but for any other test if sample size is not given...we can't find p value...as P value depends on sample size....