Sampling Distribution of Sample Proportion: Videos & Practice Problems

A company produces a new type of LED bulb and claims that $80\%$ of the bulbs last more than $10,000$ hours. To verify the claim, a random sample of $120$ bulbs is tested. The quality assurance team decides that if fewer than $90$ bulbs pass the test, they will reject the company’s claim. What is the probability that the claim will be rejected, assuming the company's claim is true?