The average weight of 20 bottled chocolate drink selected from a normally distributed population is 300g with a standard deviation of 8g. Find the true population mean using 95% confidence interval
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255.95%
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Answer:
There is another probability called alpha (α). α is related to the confidence level, CL. α is the probability that the interval does not contain the unknown population parameter.
Mathematically, α + CL = 1.
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