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(If you’ve forgotten how to find α/2, see the directions in: How to Find a Confidence Interval for a Proportion above) zα/2=0.13 Step 3: Enter your data into the following formula and solve: If formulas scare you, here’s the step-by-step to solve the equation (refer back to...
When calculating the gravel weight, make sure you do not confuse the tonne (metric ton) with the ton (short ton). The first one is used by all countries in the world and is defined to be equal to 1000 kg by the international body of standardization. The ton is currently only used in...
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