Consider a Set of 50 Measurements with Mean 50

question 9

Short Answer

Consider a set of 50 measurements with mean 50.2 and standard deviation 18.7 and with the following observed and expected frequencies.
It is desired to test whether these measurements came from a normal population. Calculate the value of the chi-square test statistic.

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Definitions:

Sample Size

The number of observations or individuals in a subset collected from a population for the purposes of statistical analysis.

Confidence

The degree of certainty or trust in a particular outcome or result, often expressed in terms of probability.

Confidence Interval

An interval estimate derived from a sample that is likely to cover an unknown population parameter with a specified level of confidence.

Proportion

A statistical measure expressing the part of a whole, often presented as a fraction, decimal, or percentage.