User manual CASIO FX-95

[. . . ] 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. [. . . ] 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. Two-Way ANOVA is used when there are two independent variables and one dependent variable. Perform the following key operations from the statistical data list. 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 . . . . . . . . . . . . . . . . . . . . . . . category list (List 1 to 26) Dependnt . . . . . . . . . . . . . . . . . . . . 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. · Temperature differential (B) level of significance P = 0. 04222398836 The level of significance (p = 0. 04222398836) is less than the significance level (0. 05), so the hypothesis is rejected. · Interaction (A × B) level of significance P = 2. 78169946e-3 The level of significance (p = 2. 78169946e-3) is less than the significance level (0. 05), so the hypothesis is rejected. The above test indicates that the time differential is not significant, the temperature differential is significant, and interaction is highly significant. 20050401 6-5-25 Tests u Input Example u Results 20050401 6-6-1 Confidence Interval 6-6 Confidence Interval A confidence interval is a range (interval) that includes a statistical value, usually the population mean. A confidence interval that is too broad makes it difficult to get an idea of where the population value (true value) is located. A narrow confidence interval, on the other hand, limits the population value and makes it difficult to obtain reliable results. [. . . ] · 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. [. . . ]