What is Hypothesis Testing?
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Objective
I can perform a hypothesis test to evaluate a claim about a population.
Part 1 of 4
Warm-up video
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We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
The null hypothesis states that a change has no effect, while the alternative hypothesis suggests the change does have an effect.
- 2
The p-value is the probability of obtaining a statistic at least as far from the mean as the one observed, assuming the null hypothesis is true.
- 3
If the p-value is less than the significance level (alpha), you reject the null hypothesis and have evidence for the alternative hypothesis.
Part 3 of 4
Practice
12 questions
What is the purpose of hypothesis testing?
In hypothesis testing, what is the null hypothesis?
Part 4 of 4
Exit ticket
Quick comprehension check
“A company claims the average lifespan of its lightbulbs is 1000 hours. You suspect the lifespan is actually less. You take a sample of 64 lightbulbs and find the sample mean is 950 hours. State the null and alternative hypotheses for this test.”
Sample answer included in the free materials
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