Statistics Solutions

(Solution Library) DuraBurn claims that its light bulbs have at least twice the average lifetime of SuperGlo's bulbs. The 4) mean lifetime of the SuperGlo bulbs

Question: DuraBurn claims that its light bulbs have at least twice the average lifetime of SuperGlo's bulbs. The 4 ) mean lifetime of the SuperGlo bulbs is \(\mu=487\) hours. A sample of 12 DuraBurn bulbs exhibited an average lifetime \(\bar{x}=1052\) hours with a standard deviation \(s=201\) hours. Using the hypotheses \(\mathrm{H}_{\mathrm{O}}: \mu=974\)

\(\mathrm{H}_{\mathrm{a}}: \mu<974\)

compute the value of the test statistic, and find the \(\mathrm{P}\) -value for the sample. State your conclusions about DuraBurn's claim.

Price: $2.99
Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in