Overview
Hypothesis testing is a fundamental concept in statistics that allows researchers to make informed decisions based on sample data. By formulating null and alternative hypotheses, researchers can use statistical methods to determine whether there is sufficient evidence to support a claim. Understandi...
Key Terms
Example: The null hypothesis states that a new drug has no effect on patients.
Example: The alternative hypothesis suggests that the new drug improves patient outcomes.
Example: A P-value of 0.03 indicates a 3% chance of observing the data if the null hypothesis is true.
Example: Concluding that a drug is effective when it actually is not.
Example: Concluding that a drug is not effective when it actually is.
Example: A significance level of 0.05 means results are significant if the P-value is less than 0.05.