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ResourceSpotlight
Students find the confidence interval for a population proportion by first finding the critical value and the margin of error. They find confidence intervals for real-life scenarios and use those intervals to make a judgment about a claim. Finally, they use two formulas for finding the required sample size for a survey, given a confidence interval and margin of error. The first formula assumes no estimate of the sample proportion, while the second one does.
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Texas Instruments, Inc.
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ResourceSpotlight
Students find the confidence interval for a population proportion by first finding the critical value and the margin of error. They find confidence intervals for real-life scenarios and use those intervals to make a judgment about a claim. Finally, they use two formulas for finding the required sample size for a survey, given a confidence interval and margin of error. The first formula assumes no estimate of the sample proportion, while the second one does.
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Texas Instruments, Inc.
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ResourceSpotlight
Students use confidence intervals to estimate the difference of two population proportions. First they find the intervals by calculating the critical value and the margin of error. Then, they use the 2-propZInt command. Students find confidence intervals for differences in proportions in real-life situations and use them to make judgments about certain claims. Last, they determine required sample size, n, when given a confidence interval and margin of error.
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Texas Instruments, Inc.
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ResourceSpotlight
Students use confidence intervals to estimate the difference of two population proportions. First they find the intervals by calculating the critical value and the margin of error. Then, they use the 2-propZInterval command. Students find confidence intervals for differences in proportions in real-life situations and use them to make judgments about certain claims. Last, they determine required sample size, n, when given a confidence interval and margin of error.
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Texas Instruments, Inc.
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In this video, Salman Khan of Khan Academy explains sample and population means.
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Khan Academy
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Explanation of the law of large numbers, and the central limit theorem
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Sampling distributions with large
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Very comprehensive list of statistics formulas.
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Stat Trek
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It also gives formulas, description, etc for statistics.
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Wolfram Mathworld
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Central Limit Theorem Tutorial
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Intro to the Central Limit Theorem Tutorial
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