To test the null hypothesis that the average lifetime for a particular brand of bulb is 750 hours ve
Question: To test the null hypothesis that the average lifetime for a particular brand of bulb is 750 hours versus the alternative that the average lifetime is different from 750 hours, a sample of 75 bulbs is used. If the standard deviation is 50 hours and \(\alpha \) is equal to 0.01, what values for \(\bar{X}\) will result in rejection of the null hypothesis.
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Solution Format: Word Document
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