Discover that a certain prescription drug has an average

Reference no: EM13121962

Probability : Confidence Interval

After reviewing 100 drug stores across nation, you discover that a certain prescription drug has an average price of $40 for $20 pills with a standard deviation of $5. Using this information, deduce with 95% accuracy where the national average cost of 20 pills lies.

Reference no: EM13121962

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