Sharp EL-9900 operation manual 167

02 Ftest2samp

Set the input method to value input mode

03 Ttest1samp

Chapter 10: Statistics & Regression Calculations

Two samples data are tested for equality of standard deviation σ1 and σ2.

Example

Test when population standard deviation σ1 < σ2,

n1 = 20,

standard deviation sx1 = 5.6,

n2 = 50, and

standard deviation sx2 = 6.2

1.Press #SE17E.

2.Press SE02. The parameter input screen

will appear.

3.Press 'E}to select σ1 < σ2.

4.Enter the values into the parameter fields.

5.6 E20 E6.2 E50 E.

5.Press @hto execute the test.

F: Statistics

p: Probability

Tests the hypothesis of population mean ∝.

Example

Test the population mean ∝0 = 65 with the sample data of

{65.6, 62.8, 66.0, 64.5, 65.1, 65.3, 63.8, 64.2, 63.5, 64.4},

from a given population (alternate hypothesis of ∝ < ∝0)

1.Enter the above statistical data into L1.

Press SE16Eto set the list input mode.

2.Press SE03.

The parameter input screen will appear.

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