Open the Statistics aplet

A calculator produces the following 6 random numbers:

0.529, 0.295, 0.952, 0.259, 0.925, and 0.592

1.Open the Statistics aplet and reset the current settings.

 

 

 

Select

 

 

 

 

 

Statistics

 

 

 

 

 

 

 

 

 

 

The Statistics aplet opens in the Numeric view.

Enter data

2.

In the C1 column, enter the random numbers

 

 

produced by the calculator.

 

 

 

 

529

 

 

 

 

 

 

 

 

 

 

 

 

295

 

 

 

 

 

 

952

 

 

 

 

 

 

259

 

 

 

 

 

 

 

 

 

 

 

 

925

 

 

 

 

 

 

592

 

 

 

 

H I N T

 

 

 

If the Decimal Mark setting in the Modes input form

 

(

modes) is set to Comma, use

instead of .

 

3. If necessary, select 1-variable statistics. Do this by

 

 

pressing the fifth menu key until

is displayed

 

 

as its menu label.

 

 

Calculate

4.

Calculate statistics.

 

 

statistics

 

The mean of 0.592

 

 

 

 

 

 

 

 

 

 

 

 

 

 

seems a little large

 

 

 

 

 

compared to the

 

 

 

 

 

 

 

 

 

 

expected value of 0.5. To see if the difference is

 

 

statistically significant, we will use the statistics

 

 

computed here to construct a confidence interval for

 

 

the true mean of the population of random numbers

 

 

and see whether or not this interval contains 0.5.

 

5.

Press

to close the computed statistics window.

Inference aplet

9-5