andreanaapollon3131 andreanaapollon3131

18-06-2024
Mathematics

Answered

CFL bulb Edalight claims that its new CFL bulb has an average life that exceeds 8,200 hours. Suppose the average life of a random sample of 43 of the new bulbs is 8,324 hours. Assume that the population standard deviation for the life of CFL bulbs is 490 hours.
A) Do hypothesis testing using critical value approach (α=0.04).
B) Do hypothesis testing using p - value approach (α=0.04).
C) Is Edalight's claim accurate?

Answer :

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