independent consuffer group stributed with a mean of 700 days and a standard deviation of 121. BIG Corporation claims that the standard deviation of its electric bulbs is less than 121. uppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the null hypothesis Ho and the alternative hypothesis H that we would use for this test. Ho: O H₁: 0 A 딤 |x X a Р S 0<0

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An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally
distributed with a mean of 700 days and a standard deviation of 121. BIG Corporation claims that the standard deviation of its electric bulbs is less than 121.
Suppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the null hypothesis H. and the alternative hypothesis H
that we would use for this test.
Ho: O
H₁: 0
μ
X p
a
S
0<0
Transcribed Image Text:An independent consumer group published its finding that the lifetimes of electric bulbs manufactured by BIG Corporation are approximately normally distributed with a mean of 700 days and a standard deviation of 121. BIG Corporation claims that the standard deviation of its electric bulbs is less than 121. Suppose that we want to carry out a hypothesis test to see if BIG Corporation's claim is correct. State the null hypothesis H. and the alternative hypothesis H that we would use for this test. Ho: O H₁: 0 μ X p a S 0<0
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