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You are testing the claim that the mean GPA of night students is less than the mean GPA of day students. You sample 30-night students,

You are testing the claim that the mean GPA of night students is less than the mean GPA of day students. You sample 30-night students, and the sample mean GPA is 2.34 with a standard deviation of 0.45 You sample 40-day students, and the sample mean GPA is 2.42 with a standard deviation of 0.89 Calculate the test statistic, rounded to 2 decimal places

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