menu that appears when you press and then select [Statistics] > [Norm
Dist].
P(, Q(, R( ... These functions take the argument t and determine a
probability of standard normal distribution as illustrated below.
t ...... This function is preceded by the argument x. It calculates the
standard variate for data value x using the mean value (
x) and population
standard deviation (σ
x
) of data input with the Statistics Editor.
Example 8: For the single-variable data input in Example 3 (page 70),
determine the normalized variate when x = 2, and P(t) at that point.
1. Perform steps 1 through 6 of the procedure under Example 3 (page
70).
2. Select [Statistics Calc], and then press
.
3. Calculate the normalized variate when x = 2.
2
– [Statistics] > [Norm Dist] > [ t]
4. Calculate P(t).
– [Statistics] > [Norm Dist] > [P(]
Calculating Estimated Values (Paired-Variable Data Only)
Based on the regression equation obtained by paired-variable statistical
calculation, the estimated value of y can be calculated for a given x-value.
The corresponding x-value (two values, x
1
and x
2
, in the case of quadratic
regression) also can be calculated for a value of y in the regression
equation.
79
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