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A Statistics Teacher Believes That Students in an Evening Statistics α=0.01\alpha = 0.01

Question 28

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A statistics teacher believes that students in an evening statistics class score higher than the students in a day
class. The results of a special exam are shown below. Assume the two samples are random and independent.
Can the teacher conclude that the evening students have a higher score? Use α=0.01\alpha = 0.01 Day StudentsEvening Studentsn1=36n2=41x1=75x2=78 s1=5.8 s2=6.3\begin{array} { l l } \text {Day Students}&\text {Evening Students}\\\mathrm { n } _ { 1 } = 36 & \mathrm { n } _ { 2 } = 41 \\\overline { \mathrm { x } } 1 = 75 & \overline { \mathrm { x } } 2 = 78 \\\mathrm {~s} _ { 1 } = 5.8 & \mathrm {~s} _ { 2 } = 6.3\end{array}

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critical value blured image = -2.33; stand...

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