Alight bulb manufacturer quarantees that the mean life of a certain type of light bulb is at least 754 hours. A random sample of 22 light bulbs has a mean life of 742 hours. Assume the population is normally distributed and the population standard deviation is 56 hours. At a= 0.08, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). (a) Identify the null hypothesis and alternative hypothesis. O A. Ho: =742 O B. Ho OC. Ho H<742 (claim) 754 H u#742 (daim) H, us754 (dlaim) H, p2742 OF. Ho p4754(dlaim) VE. Ho H u<754 O D. Ho: us742 754 (claim) H u>742 (claim) H, p= 754 (b) Identify the critical value(s). Use technology. (Use a comma to separate answers as needed. Round to two decimal places as needed.)
Alight bulb manufacturer quarantees that the mean life of a certain type of light bulb is at least 754 hours. A random sample of 22 light bulbs has a mean life of 742 hours. Assume the population is normally distributed and the population standard deviation is 56 hours. At a= 0.08, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e). (a) Identify the null hypothesis and alternative hypothesis. O A. Ho: =742 O B. Ho OC. Ho H<742 (claim) 754 H u#742 (daim) H, us754 (dlaim) H, p2742 OF. Ho p4754(dlaim) VE. Ho H u<754 O D. Ho: us742 754 (claim) H u>742 (claim) H, p= 754 (b) Identify the critical value(s). Use technology. (Use a comma to separate answers as needed. Round to two decimal places as needed.)
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Alight bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 754 hours. A random sample of 22 light bulbs has a mean life of 742 hours. Assume the population is normally distributed and the
population standard deviation is 56 hours. At a= 0.08, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e).
(a) Identify the null hypothesis and alternative hypothesis.
O A. H H=742
O B. H, µ>754
O C. Ho: µ<742 (claim)
Ha H#742 (claim)
H, µs754 (claim)
H µ742
D. H μs742
E. Ho µ2754 (claim)
OF. Ho: u#754(claim)
Ha p>742 (claim)
H p<754
H3 µ= 754
(b) Identify the critical value(s). Use technology.
(Use a comma to separate answers as needed. Round to two decimal places as needed.)
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