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HP Mathematics II User Manual Page 67

Interface:

RAD

{HOME}

PRG

CONF^, Mean/Stdev.

~x ,s samp, [[xn]] Level -y

:^s: 0.90 1.2

: x n: 3 20

The confidence interval for the mean is calculated based on

a sample with 20 values, standard deviation 1.2, mean 3 and

with confidence level 90%.

Confidence interval for variance, ^ is unknown

The standard deviation of the sample has to be calculated first

(separate menu option). The calculation is based on the kji-

square distribution.

5. Statistics

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