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1 ACT Inc reported that 74 of 1644 randomly selected college freshmen returned to college the next year a 4 pts Construct and interpret a

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1 ACT Inc reported that 74 of 1644 randomly selected college freshmen returned to college the next year a 4 pts Construct and interpret a 90 confidence interval to estimate the retention rate for college freshmen b 4 pts Let s say they only need a 2 margin of error with the same level of confidence the following year How many college freshmen must be surveyed

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