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CNSL 503 - Exam 4questions and answers Graded A+ latest update
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CNSL 503 - Exam 4questions and answers Graded A+ latest update What is purpose of calculating Z-scores? To understand a score's relative standing within a distribution. z-score standardizes scores from different data sets with different means. Formula for calculating z-score from a sample mean z=X-u / sigma X is score Mu is mean Sigma is standard deviation What is purpose of a standard normal table? Shows the proportion of values that fall to the left (or below) of a given z-score in a normal distribution. How to find percentage above z-score? p-value Steps for Hypothesis Testing using z-score 1. State null hypothesis and alternative hypothes
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