For a Standard Normal Distribution,the Probability of Obtaining a Z

question 45

Multiple Choice

For a standard normal distribution,the probability of obtaining a z value of less than 1.6 is​

• A)​0.1600
• B)​0.0160
• C)​0.0016
• D)​0.9452

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Definitions:

Population Variance

A measure of the spread of a distribution within an entire population, indicating how much the data differ from the mean.

T Distribution

A probability distribution that emerges in the context of estimating the mean for a normally distributed population, applicable when dealing with a small sample size and the population standard deviation is not known.

Degrees of Freedom

The number of independent pieces of information available to estimate another parameter or the number of values in the final calculation of a statistic that are free to vary.

Interval Estimation

A range within which a population parameter is estimated to lie, based on sample data and a certain level of confidence.