A Sample of Size 5 Shows a Mean of 45

question 100

True/False

A sample of size 5 shows a mean of 45.2 and a sample standard deviation of 6.4. The standard error of the sample mean is approximately 2.86.

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Definitions:

Confidence Levels

The probability or percentage that specifies how confident one can be in the method used to construct a confidence interval estimate of a population parameter.

Confidence Intervals

Ranges of values, based on sample data, that are used to estimate the likelihood of containing the population parameter of interest within a specified level of certainty.

Standard Error

A statistical measure that indicates the accuracy with which a sample distribution represents a population by using its standard deviation and sample size.

Sample Size

The number of observations or elements selected from a population to study a particular property.