User manual SHARP PC-W100T

[. . . ] Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] The following screen will appear. 146 Chapter 10: Statistics & Regression Calculations Setting the graph drawing "on" 3. The first line shows if the graph drawing is on or off. With the cursor pointer at the "on" position, press E to set the graph drawing on. Press } to move the cursor to the next line (DATA). Select X for 1-variable plotting and press E. Selecting whether 1variable plotting or 2-variable plotting Select the list number used for graphing Determining ListX and Freq Frequency relates to the number of times access occurred (L2) at the ListX stage. You can refer that the Access of ListX (L1) hour occurred Freq (L2) number of times. Press } to move the cursor to the next line (ListX). If another list name is set, press @ 1 to enter L1. L1 is set to be used for x-axis items. Setting the frequency 9. Press } to move the cursor to the next line (Freq). Press @ 2 to enter L2. Selecting the graph 11. Statistical hypothesis tests Distribution menu items Use a list table to enter the statistical data (press S to access). Up to 999 elements can be used for each list, though the amount of data able to be entered will vary according to the memory usage. Use the CALC menu under the STAT menu to obtain statistic values. Press S C to access the CALC menu. Calculating statistic values (CALC menu) 149 Chapter 10: Statistics & Regression Calculations 2. Statistical evaluations available under the C CALC menu 1_Stats 1-variable (x) statistical a calculations _ x Mean of sample (x) sx Standard deviation of sample (x) 2 2 sx = x ­ nx n­1 x Population standard deviation of sample (x) 2 2 x = x ­ nx n x x 2 Sum of sample (x) Sum of squares of sample (x) Sample number Smallest value of sample (x) First quartile of sample (x) Median of sample (x) Third quartile of sample (x) Largest value of sample (x) n xmin Q1 Med Q3 xmax 2_Stats 2-variable (x, y) statistical calculations The following values are added to the 1-variable statistic calculations _ y Mean of sample (y) sy y y y 2 Standard deviation of sample (y) Population standard deviation of sample (y) Sum of sample (y) Sum of squares of sample (y) Sum of product of sample (x, y) Smallest value of sample (y) Largest value of sample (y) xy ymin ymax 150 Chapter 10: Statistics & Regression Calculations The web site access counts example on page 145 will be used again to demonstrate the calculation of statistical values. Hours 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 6 24 15 30 59 72 55 43 21 10 150 151 135 108 204 253 232 251 75 30 4 19 32 72 95 91 123 201 184 108 95 72 45 38 75 111 153 90 84 35 Sunday 98 72 55 3 Monday 32 8 12 2 * If you did not previously enter the above values in the list table, press S and select A EDIT to display the list entry mode and enter the values. Calculating one-variable statistics using web site access counts for Sunday (L2) and Monday (L3). Press # C and S to display the statistics menu. using the 1_Stats will be displayed on the top line of the screen followed Sunday data (L2) by the cursor. All the statistical values will be displayed on the screen. 4. using the 1_Stats will be displayed on the bottom line of the screen Monday data (L3) followed by the cursor. Press @ 3 to enter L3 and press E. 151 Chapter 10: Statistics & Regression Calculations Calculating the previous two-variable statistical values can be performed in a single operation. [. . . ] 96 WEnd, BRNCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 While, BRNCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 WINDOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 WINDOW key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]