Question: After selecting a sample and calculating its mean, a statistician declared, I am 95% confident that the population mean fluctuates between 110 y 130.

After selecting a sample and calculating its mean, a statistician declared, " I am 95% confident that the population mean fluctuates between 110 y 130". What does she really mean?

Select one:

a. The probability is 95% that the population mean is between 110 and 130

b. The probability is 95% that the population mean is 115 (the mid point of the interval)

c. 95% of the intervals calculated from samples of this size will contain the population mean

d. All of these are correct

e. Only A and C are correct

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