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. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. [. . . ] executes a calculation or draws a graph The following shows the meaning of parameter data specification items that are different from list data specification. x1n-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . n2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . standard deviation (x1n-1 > 0) of sample 1 size (positive integer) of sample 1 standard deviation (x2n-1 > 0) of sample 2 size (positive integer) of sample 2 20050401 6-5-21 Tests 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 Result Output Example 1G2 . . . . . . . . . . . . . . . . . . . . . . . . . . direction of test F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F value p-value mean of sample 1 (Displayed only for Data: List setting. ) mean of sample 2 (Displayed only for Data: List setting. ) standard deviation of sample 1 standard deviation of sample 2 size of sample 1 size of sample 2 You can use the following graph analysis functions after drawing a graph. Pressing 1(F) displays the F value at the bottom of the display, and displays the pointer at the corresponding location in the graph (unless the location is off the graph screen). Two points are displayed in the case of a two-tail test. Pressing 2(P) displays the p-value at the bottom of the display without displaying the pointer. Press J to clear the p-value. # [Save Res] does not save the 1 condition in line 2. # V-Window settings are automatically optimized for drawing the graph. 20050401 # Executing an analysis function automatically stores the F and p values in alpha variables F and P, respectively. 6-5-22 Tests k ANOVA ANOVA tests the hypothesis that the population means of the samples are equal when there are multiple samples. One-Way ANOVA is used when there is one independent variable and one dependent variable. You can use the following graph analysis function after drawing a graph. Trace function Pressing d or e moves the pointer on the graph in the corresponding direction. When there are multiple graphs, you can move between graphs by pressing f and c. Press J to clear the pointer from the display. # Graphing is available with Two-Way ANOVA only. V-Window settings are performed automatically, regardless of Setup screen settings. 20050401 # Using the Trace function automatically stores the number of conditions to alpha variable A and the mean value to variable M, respectively. 6-5-24 Tests k ANOVA (Two-Way) u Description The nearby table shows measurement results for a metal product produced by a heat treatment process based on two treatment levels: time (A) and temperature (B). The experiments were repeated twice each under identical conditions. B (Heat Treatment Temperature) A (Time) A1 A2 B1 113 , 133 , B2 116 139 , 131 126 , 132 122 Perform analysis of variance on the following null hypothesis, using a significance level of 5%. Ho : No change in strength due to time Ho : No change in strength due to heat treatment temperature Ho : No change in strength due to interaction of time and heat treatment temperature u Solution Use two-way ANOVA to test the above hypothesis. List1={1, 1, 1, 1, 2, 2, 2, 2 } List2={1, 1, 2, 2, 1, 1, 2, 2 } List3={113, 116, 139, 132, 133, 131, 126, 122} Define List 3 (the data for each group) as Dependent. Define List 1 and List 2 (the factor numbers for each data item in List 3) as Factor A and Factor B respectively. Executing the test produces the following results. · Time differential (A) level of significance P = 0. 2458019517 The level of significance (p = 0. 2458019517) is greater than the significance level (0. 05), so the hypothesis is not rejected. [. . . ] · Be sure to turn the calculator off before replacing batteries. Replacing batteries with power on will cause data in memory to be deleted. Making sure that you do not accidently press the o key, slide the case onto the calculator and then turn it over. 1 3. Remove the back cover from the calculator by pulling with your finger at the point marked 1. [. . . ]