User manual SHARP EL-9900C

[. . . ] ® MODEL EL-9900 GRAPHING CALCULATOR OPERATION MANUAL In the U. S. A. Declaration of Conformity Graphing Calculator: EL-9900 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Responsible Party: SHARP ELECTRONICS CORPORATION Sharp Plaza, Mahwah, New Jersey 07430-1163 TEL: 1-800-BE-SHARP Tested To Comply With FCC Standards FOR HOME OR OFFICE USE WARNING -- FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly approved by the manufacturer could void the user's authority to operate this equipment. [. . . ] When you draw the graph using the automatic statistics zoom function (9 Stat), the division number is automatically set to Xmax ­Xmin (default value: 10). If you wish to show the graph Xscl hour by hour, change the value in the W menu. Enter the values as shown in the diagram to the right. Ymax is determined by the maximum access number (253 at 20:00 on Sunday). You can compare up to 3 statistical data by setting PLOT2/PLOT3 to on. Compare the access rates on Sunday and Monday Set the statistical 1. Press [ A E and move the cursor to GRAPH. Press B and 1 a broken line (broken line with circle dots). The histogram is now changed to a broken line graph. PLOT: on, DATA: X, ListX: L1, and Freq: L3. 148 Chapter 10: Statistics & Regression Calculations 8. Move the cursor to GRAPH and press [. 9. Press B 2 (broken line with cross points). Now you can compare the difference in web site access counts between Sunday and Monday. STAT menus Press the S key to access the statistical calculation menus. The menus are as follows: A EDIT B OPE C CALC D REG E TEST F DISTRI Data Entry Provides the entry or edit mode and displays a list table. Calculation menu for operations such as ascending or descending sort. 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). [. . . ] 63, 95 y', REG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Y'OFF, FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Y'ON, FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Y= key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]