Write the null and alternative hypotheses. Identify which is the claim.
A light bulb manufacturer claims that the mean life of a certain type of light bulb is less than 775 hours.
a) Write the claim mathematically and identify Ho and Ha?
b) Identify which is the claim? (choose one)
The null hypothesis Ho is the claim OR The alternative hypothesis Ha is the claim.© BrainMass Inc. brainmass.com December 20, 2018, 3:44 am ad1c9bdddf
The solution helps to identify the null and alternative hypotheses.