. Calculate The Value Of The Test Statistic.

A z-score calculator can determine the standardized score for a data point, given raw data, population mean and standard deviation. Steps are shown for calculating the z-score, and it can also convert between z-score and probability. The calculator can also find the probability between two z-scores using the left or right tail. Additionally, one can calculate probability based on a measured z-value from an experiment, using negative and positive z-score tables.

The value of the test statistic, calculated using the formula for the z-score ((73.2-71)/(5/\sqrt{90})), is approximately 3.79.

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