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A recent survey of math students asked about their overall grades. 22 students were surveyed, and...

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Basic Math

A recent survey of math students asked about their overallgrades. 22 students were surveyed, and it was found that theaverage GPA of the 22 sampled students was a 3.2, with a standarddeviation of 0.9 points. Calculate a 90% confidence interval forthe true mean GPA of math students. Round your answer to thenearest hundredth, and choose the most correct option below:(2.88,3.52), (2.87,3.53), (.28,.94), (2.40,4.00) or none of theabove...

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