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Original Articles

Advantages of Computer Programs over Power Charts for the Estimation of Power

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Figures & data

Table 1. Comparing Power Estimated in Three Statistics Texts Using the Pearson and Hartley Charts and SAS

Figure 1. Histogram of Student Estimation Errors for Noncentrality Pattern 1.

Figure 1. Histogram of Student Estimation Errors for Noncentrality Pattern 1.

Figure 2. Histogram of Student Estimation Errors for Noncentrality Pattern 2.

Figure 2. Histogram of Student Estimation Errors for Noncentrality Pattern 2.

Figure 3. Histogram of Student Estimation Errors for Noncentrality Pattern 3.

Figure 3. Histogram of Student Estimation Errors for Noncentrality Pattern 3.

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