EXAMPLE 36Using technology to find values of , given an area
In Example 33, we found that the value of with area 0.90 to its left is . Con-frm this result with technology.
Solution
We follow the instructions in the Step-by-Step Technology Guide at the end of Section 6.5 (page 380). Figures 42, 43, 44, and 45 show the results from TI-83/84, Excel, Minitab, and SPSS, respectively. Note that technology usually provides a more precise solution than the table.
Figure 6.44: FIGURE 42 TI-83/84 results.
Figure 6.45: FIGURE 43 Excel results.
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Figure 6.46: FIGURE 44 Minitab results.
Figure 6.47: FIGURE 45 SPSS results.