Null Hypothesis (H0): The proportion of computer chips that do not fail in the first 1000 hours of their use is equal to 39%.
Alternative Hypothesis (H1): The proportion of computer chips that do not fail in the first 1000 hours of their use is greater than 39%.
A sample of 1300
computer chips revealed that 42%
of the chips do not fail in the first 1000
hours of their use. The company's promotional literature claimed that above 39%
do not fail in the first 1000
hours of their use. Is there sufficient evidence at the 0.05
level to support the company's claim?
State the null and alternative hypotheses for the above scenario.
1 answer