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  3. use this information to answer parts a and b in a

Use this information to answer Parts A and B In a random sample of 60...

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Basic Math

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Use this information to answer Parts A and B In a random sample of 60 seniors at a high school the mean weekly time spent on homework is 8 5 hours The population standard deviation for weekly homework time is 0 75 hour Part A What is a 90 confidence interval for the mean weekly time u spent on homework for all seniors at the high school Round your answers to two decima places as needed Enter the correct values in the boxes to complete the confidence interval Show Hints

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