When a sample mean is compared against a standard for a large sample,which statistic is calculated?
A)t
B)p
C)|2
D)s
E)z

Question

Quizplus · Accepted Answer

When comparing a sample mean to a standard for a large sample, a z-score is calculated using the formula (sample mean - population mean) / (standard deviation / square root of sample size) and compared to a standard normal distribution. The z-score is used to calculate the probability of obtaining the observed sample mean or a more extreme value, and this probability (p-value) is used to make a decision about the hypothesis being tested.

When a Sample Mean Is Compared Against a Standard for a Large