This activity involves testing a hypothesis about a population mean, μμ We will test a hypothesis about the volumes of Coke, Diet Coke, Pepsi or Diet Pepsi. The claim by the manufacturers is that the average volume of soda is at least 12 ounces. Assume that the population standard deviation, σ,σ,is known to be 0.01 ounces. 1. Decide the significance level you are going to use to test. 2. Determine the mean (average) and the standard deviation of the volume of your soda. 3. Complete the calculations below and graph. Step 1: H0H0: μμ_________________ HαHα: μμ________________ (make sure you put in the appropriate symbols, values and labels) Step 2: α=α=_________________ Step 3: Critical value(s): za=za=_______________ Step 4: Graph, label and shade the critical regions and label the critical values. Step 5: Test statistic (show all steps) : z=x′−μσn√=z=x′−μσn= Calculate: mean: _______________ standard deviation: ______________ variance: ____________________ z: ___________________________ Step 6: Decision criteria: reject H0 if ztest ___________ zcv Step 7: Decision _____________________ Step 8: Conclusion (write the appropriate conclusion with the claim):
This activity involves testing a hypothesis about a population
1. Decide the significance level you are going to use to test.
2. Determine the mean (average) and the standard deviation of the volume of your soda.
3. Complete the calculations below and graph.
Step 1: H0H0: μμ_________________
HαHα: μμ________________
(make sure you put in the appropriate symbols, values and labels)
Step 2: α=α=_________________
Step 3: Critical value(s): za=za=_______________
Step 4: Graph, label and shade the critical regions and label the critical values.
Step 5: Test statistic (show all steps) :
z=x′−μσn√=z=x′−μσn=
Calculate: mean: _______________
standard deviation: ______________
variance: ____________________
z: ___________________________
Step 6: Decision criteria: reject H0 if ztest ___________ zcv
Step 7: Decision _____________________
Step 8: Conclusion (write the appropriate conclusion with the claim):
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