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BIG Corporation advertises that its light bulbs have a mean lifetime, , of 2900 hours. Suppose that we have reason to doubt this claim and

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BIG Corporation advertises that its light bulbs have a mean lifetime, , of 2900 hours. Suppose that we have reason to doubt this claim and decide to do a statistical test of the claim. We choose a random sample of light bulbs manufactured by BIG and find that the mean lifetime for this sample is 2720 hours and that the sample standard deviation of the lifetimes is 700 hours. Based on this information, complete the parts below. (@) What are the null hypothesis #, and the alternative hypothesis / that should be used for the test? X Ho : 0 H :I 020 0=0 0*0 (b) Suppose that we decide to reject the null hypothesis. What sort of error might we be making? (Choose one) X 5 (C) Fill in the blanks to describe the Type II error that could occur if the true mean lifetime of BIG's light bulbs is 2700 hours. A Type II error would be (Choose one) 7 the hypothesis that i is (Choose one) (Choose one) 7 when, in fact, His (Choose one)

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