Chapter Eight Estimation.

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Chapter 8 Estimation Understandable Statistics Ninth Edition
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Presentation transcript:

Chapter Eight Estimation

Figure 8-1: Confidence Level c and Corresponding Critical Value zc Shown on the Standard Normal Curve Copyright © Houghton Mifflin Company. All rights reserved.

Figure 8-2: Area Between -z and z is 0.99 Copyright © Houghton Mifflin Company. All rights reserved.

Table 8-2: Some levels of Confidence and Their Corresponding Value Copyright © Houghton Mifflin Company. All rights reserved.

Figure 8-3: Distribution of Sample means x Copyright © Houghton Mifflin Company. All rights reserved.

Figure 8-4: 0.90 Confidence Intervals for Samples of the Same Size Copyright © Houghton Mifflin Company. All rights reserved.

Figure 8-5: A Standard Normal Distribution and Student's t Distribution with d.f.=3 and d.f.=5 Copyright © Houghton Mifflin Company. All rights reserved.

Table 8-3: Student's t Distribution Critical Values (Excerpt from Table 6, Appendix II) Copyright © Houghton Mifflin Company. All rights reserved.

Figure 8-7: Sampling Distribution of x1 – x2 Copyright © Houghton Mifflin Company. All rights reserved.

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