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QUESTION
6. To test the null hypothesis that the average lifetime for a particular brand of bulb is 775 hours versus the alternative that the average lifetime...
6. To test the null hypothesis that the average lifetime for a particular brand of bulb is 775 hours versus the alternative that the average lifetime is different from 775 hours, a sample of 80 bulbs is used. If the standard deviation is 40 hours and α is equal to 0.01, what values for will result in rejection of the null hypothesis
