User manual CASIO FX-991W

[. . . ] However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help. FCC WARNING Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. [. . . ] 3(TEST) 5(ANOV) The following is the meaning of each item in the case of list data specification. selects One-Way ANOVA or Two-Way ANOVA (number of levels) Factor A . . . . . . . . . . . . . . . . . . . . . . . list to be used for sample data (List 1 to 26) Save Res . . . . . . . . . . . . . . . . . . . . first list for storage of calculation results (None or List 1 to 22)*1 Execute . . . . . . . . . . . . . . . . . . . . . . . executes a calculation or draws a graph (Two-Way ANOVA only) The following item appears in the case of Two-Way ANOVA only. category list (List 1 to 26) After setting all the parameters, use c to move the highlighting to "Execute" and then press one of the function keys shown below to perform the calculation or draw the graph. Calculation results are displayed in table form, just as they appear in science books. *1 [Save Res] saves each vertical column of the table into its own list. The leftmost column is saved in the specified list, and each subsequent column to the right is saved in 20050401 the next sequentially numbered list. You can specify an first list number in the range of 1 to 22. 6-5-23 Tests Calculation Result Output Example One-Way ANOVA Line 1 (A) . . . . . . . . . . . . . . . . . . . . Factor A df value, SS value, MS value, F value, p-value Line 2 (ERR) . . . . . . . . . . . . . . . Error df value, SS value, MS value Two-Way ANOVA Line 1 (A) . . . . . . . . . . . . . . . . . . . . With a 95% confidence interval, for example, the population value is not included within the resulting intervals 5% of the time. When you plan to conduct a survey and then t test and Z test the data, you must also consider the sample size, confidence interval width, and confidence level. 1-Sample Z Interval calculates the confidence interval for an unknown population mean when the population standard deviation is known. 2-Sample Z Interval calculates the confidence interval for the difference between two population means when the population standard deviations of two samples are known. 1-Prop Z Interval calculates the confidence interval for an unknown proportion of successes. 2-Prop Z Interval calculates the confidence interval for the difference between the propotion of successes in two populations. 1-Sample t Interval calculates the confidence interval for an unknown population mean when the population standard deviation is unknown. 2-Sample t Interval calculates the confidence interval for the difference between two population means when both population standard deviations are unknown. On the initial STAT mode screen, press 4(INTR) to display the confidence interval menu, which contains the following items. t intervals (page 6-6-8) # There is no graphing for confidence interval functions. 20050401 6-6-2 Confidence Interval u General Confidence Interval Precautions Inputting a value in the range of 0 < C-Level < 1 for the C-Level setting sets you value you input. Inputting a value in the range of 1 < C-Level < 100 sets a value equivalent to your input divided by 100. # Inputting a value of 100 or greater, or a negative value causes an error (Ma ERROR). 20050401 6-6-3 Confidence Interval k Z Interval u 1-Sample Z Interval 1-Sample Z Interval calculates the confidence interval for an unknown population mean when the population standard deviation is known. [. . . ] · Do not expose batteries to direct heat, let them become shorted, or try to take them apart. (Should a battery leak, clean out the battery compartment of the calculator immediately, taking care to avoid letting the battery fluid come into direct contact with your skin. ) Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately. u To replace the main power supply batteries · Never remove the main power supply and the memory back up batteries from the calculator at the same time. · Never turn on the calculator while the main power supply batteries are removed or not loaded correctly. [. . . ]