Question: Listed below are some quality control global stats and some sample stats. Global Stats Mean amount per bottle 30.2 oz StDev amount per bottle 0.8

Listed below are some quality control global stats and some sample stats.

Global Stats

Mean amount per bottle 30.2 oz

StDev amount per bottle 0.8 oz

Sample Stats

Number of Bottles 20

Mean amount per bottle 30.3 oz

Sampling Error 0.1 oz

What was the z-score?

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