Question: 1) Write the null hypothesis and the alternative hypothesis, respectively. And is this one sided or two sided? 2) Use the EXCEL data analysis tool

1) Write the null hypothesis and the alternative

1) Write the null hypothesis and the alternative hypothesis, respectively. And is this one sided or two sided?

2) Use the EXCEL data analysis tool to test the above hypotheses and state your conclusions.

A group of 10 students took a special English course during the vacation. Test at a significant level of 5% whether the course improve the students' TOEIC scores or not. The TOEIC scores before and after the course are as follows. Students 1 2 3 4 5 6 7 8 9 10 Before course 800 900 650 925 800 875 950 760 795 850 After course 820 915 700 915 810 845 945 810 805 845

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