© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. FIGURES FOR CHAPTER 7 SURVEY SAMPLING This chapter in the book includes: 7.1Introduction.

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© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. FIGURES FOR CHAPTER 7 SURVEY SAMPLING This chapter in the book includes: 7.1Introduction 7.2Population Parameters 7.3Simple Random Sampling 7.4Estimation of a Ratio 7.5Stratified Random Sampling 7.6Concluding Remarks 7.7Problems Return to ContentsReturn to Contents. ISBN

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.1 Histogram of the numbers of patients discharged during January 1968 from 393 short-stay hospitals.

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.2 Histograms of the values of the mean number of discharges in 500 simple random samples from the population of 393 hospitals. Sample sizes: (a) n = 8, (b) n = 16, (c) n = 32, (d) n = 64.

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.3 A standard normal density showing α and z(α).

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.4 Vertical lines are 20 approximate 95% confidence intervals for µ. The horizontal line is the true value of µ.

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.5 Scatterplot of the number of discharges versus the number of beds for the 393 hospitals.

© 2007 Thomson Brooks/Cole, a part of The Thomson Corporation. Figure 7.6 (a) A histogram of the means of 500 simple random samples of size 64 from the population of discharges; (b) a histogram of the values of 500 ratio estimates of the mean number of discharges from samples of size 64.