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Hypothesis testing is a fundamental concept in statistics, used to make inferences about population parameters based on sample data. Here are 100 tips for tests of hypotheses:
1. Basics of Hypothesis Testing:
- Null Hypothesis (H₀): The default assumption that there is no effect or no difference.
- Alternative Hypothesis (H₁): The claim that contradicts the null hypothesis.
- Type I Error (α): Incorrectly rejecting a true null hypothesis.
- Type II Error (β): Failing to reject a false null hypothesis.
- Significance Level (α): The threshold for rejecting the null hypothesis (common values include 0.05, 0.01).
2. One-Sample Tests:
- One-Sample t-Test: Compare the mean of a single sample to a known or hypothesized population mean.
- One-Sample z-Test: Similar to the t-test, but used when the population standard deviation is known.
- Wilcoxon Signed-Rank Test: Non-parametric alternative to the one-sample t-test for comparing medians.
3. Two-Sample Tests:
- Independent Samples t-Test: Compare means of two…