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I need help on solving this please! 2. In the summer session her class size balloons up to 144 students. The mean of the mathematics

I need help on solving this please!

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2. In the summer session her class size balloons up to 144 students. The mean of the mathematics diagnostic for her summer students is 59 and the standard deviation is 3. Choose a statistical test to determine whether or not the summer class's mean is significantly less than the population mean for the past 15 years. Set your alpha level at .05 and perform the steps in proper procedure

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