HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 131

hp40g+.book Page 5 Friday, December 9, 2005 1:03 AM 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 HINT 2. In the C1 column, enter the random numbers produced by the calculator. 529 295 952 259 925 592 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 statistics 4. Calculate statistics. Inference aplet 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. 11-5