This is the step1, so step 2 and step 3 must be answered. (Step 2: Test Statistic -Pearson's r correlation coefficient AND Step 3: Critical Values ) so based it from the photo. Show COMPLETE SOLUTIONS. The table shows the number of hours spend by 30 students in studing and their test scores. Solve for the Pearson’s r and interpret the results. Use 5% significa

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

This is the step1, so step 2 and step 3 must be answered. (Step 2: Test Statistic -Pearson's r correlation coefficient AND Step 3: Critical Values ) so based it from the photo. Show COMPLETE SOLUTIONS. The table shows the number of hours spend by 30 students in studing and their test scores. Solve for the Pearson’s r and interpret the results. Use 5% significance level. Step 1: Null and Alternative Hypothesis Ho: r = 0; There is no significant relationship between the number of hours spent studying and the students test scores. Ha: r ≠ 0; There is a significant relationship between the number of hours spent studying and the students test scores.

Student 1:
Student 2:
Student 3:
Student 4:
Student 5:
Student 6:
Student 7:
Student 8:
Student 9:
Student 10:
Student 11:
Student 12:
Student 13:
Student 14:
Student 15:
Student 16:
Student 17:
Student 18:
Student 19:
Student 20:
Student 21:
Student 22:
Student 23:
Student 24:
Student 25:
Student 26:
Student 27:
Student 28:
Student 29:
Student 30:
Number of Hours
Spent Studying
0.0
0.4
1.3
4.0
1.9
1.2
2.3
2.5
6.1
2.0
2.9
3.5
4.2
4.0
4.5
3.6
5.0
5.3
5.7
6.0
3.4
6.5
2.3
1.5
5.0
2.7
4.2
4.9
0.8
0.2
Exam Score (%)
39
45
59
72
65
55
68
55
76
59
57
66
78
78
69
82
84
77
80
90
72
93
58
47
77
74
61
72
62
57

Definition Definition Statistical measure used to assess the strength and direction of relationships between two variables. Correlation coefficients range between -1 and 1. A coefficient value of 0 indicates that there is no relationship between the variables, whereas a -1 or 1 indicates that there is a perfect negative or positive correlation.

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