'Particular confidence level' presentation slideshows

Inferences About Means

Inferences About Means. Chapter 23. Objectives. Construct confidence intervals for a population mean Conduct hypothesis tests for a population mean Examine the t-model used for inferences about means Use both critical t-value and P-values to make a decision about the null hypothesis.

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Ch. 12 Inference for Proportions

Ch. 12 Inference for Proportions. 12.1 Inference for a proportion Sample Proportion. Section 12.2. Comparing two proportions. Comparing Two Proportions. Comparisons between two percentages are much more common than questions about isolated percentages. And they are more interesting.

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Chapter 23

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