A janitorial service wants to estimate the amount of time it takes to change a light bulb. A random sample of 100 light bulb change jobs yields a mean of 22 minutes and a standard deviation of 5 minutes. The 95% confidence interval for the average time it takes to replace a light bulb is (20.1775 , 23.8225) O (21.902 , 22.098) O (21.02 , 22.98) (12.2 , 31.8)

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A: A one-way analysis of variances produces dftotal = 35 and dfwithin= 32. For this analysis, what is d...

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A: Odds refer to the chances of something occurring. 

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Q: For the following set 4 data 13,16, 15, 22, 26, 32,37, 37 55, 59, 62, 67,77,78, 83 pel

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Q: The following data relate to marks obtained by 250 students in Example Accountancy and Statistics in...

A: Solution is given: Hope the answer is helpful.

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