The American Psychological Association defines stress as any uncomfortable emotional experience accompanied by predictable biochemical, physiological and behavioral changes.. While a part of everyday life, the varying degrees of stress are what impact the body and mind. Continue Reading.
Answers. Best Answer: The P value relates to the Z score. The confidence interval relates to the percentage. For example with a 95% confidence interval your answer will need to be less than 5% for one tail and less than 2.5% for 2 tails to be accepted. For a P-value the significant Z-score must be more extreme than your answer to accept the statistic. Source(s): BUS205.
For a population with unknown mean and unknown standard deviation, a confidence interval for the population mean, based on a simple random sample (SRS) of size n, is + t* , where t* is the upper (1-C)/2 critical value for the t distribution with n-1 degrees of freedom, t(n-1).or a 95% confidence interval, the area in each tail is equal to 0.05/2 = 0.025. The value z* representing the point on the standard normal density curve such that the probability of observing a value greater than z* is equal to p is known as the upper p critical value of the standard normal distribution.