SOLUTION: Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 80 hours.

SOLUTION: Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 80 hours.

Algebra.Com

Question 233778: Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 80 hours.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 80 hours.
-------------------
Ho: u >= 80
Ha: u < 80
===============
Cheers,
Stan H.
RELATED QUESTIONS
Write a correct null and alternative hypothesis for testing the claim that the mean life... (answered by stanbon)

Write a correct null and alternative hypothesis for testing the claim that the mean life... (answered by stanbon)

For the following statement, write the null hypothesis and the alternative hypothesis.... (answered by robertb)

There's a claim that the mean scores for seniors (s) is higher than freshman(f). What is... (answered by ewatrrr)

A new cell phone battery is being considered as a replacement for the current one. Ten... (answered by stanbon)

Write a correct null and alternative hypothesis that tests the claim that the mean... (answered by stanbon)

Write a correct null and alternative hypothesis that tests the claim that the mean... (answered by Edwin McCravy)

Describe what a type I and type II error would be for each of the following null... (answered by ewatrrr)

10.20 A new cell phone battery is being considered as a replacement for the current one.... (answered by stanbon)