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

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1,) You are testing the claim that the mean GPA of nightstudents is less than the mean GPA of day students.You sample 25 night students, and the sample mean GPA is 2.45 witha standard deviation of 0.72You sample 60 day students, and the sample mean GPA is 2.03 with astandard deviation of 0.65Calculate the test statistic, rounded to 2 decimal places
2.) The sample consisted of 30 night students, with asample mean GPA of 2.85 and a standard deviation of 0.04, and 45day students, with a sample mean GPA of 2.86 and a standarddeviation of 0.06.The test statistic is: (to 2 decimals)The critical value is: (to 2 decimals)
3.) Calculate the test-statistic, t withthe following information.n1=35n1=35, ¯x1=2.83x¯1=2.83, s1=0.52s1=0.52n2=45n2=45, ¯x2=2.49x¯2=2.49, s2=0.63s2=0.63Rounded to 2 decimal places.