Suppose X Has a Normal Distribution with Mean 10 and Standard

question 166

Short Answer

Suppose X has a normal distribution with mean 10 and standard deviation 2.The probability that X is less than 8 is equal to the probability that Z is less than ____________________.

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Definitions:

One-tailed

Refers to a type of statistical test where the hypothesis specifies a direction of the expected difference or relationship.

Standard Deviation

An indicator of how much the values in a dataset spread out or vary from one another.

Standard Error

A measure of the statistical accuracy of an estimate, indicating the variability of sample means around the population mean.

Mean

A statistical measure representing the central or typical value in a set of data, calculated as the sum divided by the number of observations.