Question 1) The following is information about the number of hour freshman nursing students studies and the grade that they receive in Statistics course: (Each parts 3 points total 12 points). You can calculate by hand or use following output to answer the questions.

Number of hours study (x): 1, 2, 3, 3, 4, 4, 5, 5, 6, 7

Grade (Y):60, 65, 75, 74, 80, 80, 85, 85, 90, 95

a)What does the scatter plot show?

1.It seems there is positive linear association between number of hours study and grade.

2.It seems there is negative linear association between number of hours study and grade.

3.It seems there is no linear association between number of hours study and grade.

4.None of above

b)What is the sample Pearson correlation coefficient?

1..80

2..70

3..992

4.-.65

c)What is the T statistic to Test H0: =0 at alpha=.05?

1.11.20

2.5.67

3.13.56

4.22.18

d)What is your conclusion to Test H0: =0 at alpha=.05?

1.Yes, Since T statistics is greater T value from table, we reject H0 and conclude that there is linear positive relationship between number of hours study and grade.

2.No, Since T statistics is less T value from table, we cannot reject H0 and cannot conclude that there is linear positive relationship between number of hours study and grade.