Question
In order for applicants to work for the foreign-service department, they must take a test in...
In order for applicants to work for the foreign-service department, they must take a test in the language of the country where they plan to work. The data below shows the relationship between the number of years that applicants have studied a particular language and the grades they received on the proficiency exam. Calculate the correlation coefficient, r.
| number of years x | 7 8 8 9 7 10 6 11 7 |
|---|---|
| grades on test y | 64 71 78 85 76 93 61 96 75 |
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
In order for applicants to work for the foreign-service department, they must take a test in...
In order for applicants to work for the foreign-service
department, they must take a test in the language of the country
where they plan to work. The data below show the relationship
between the number of years that applicants have studied a
particular language and the grades they received on the proficiency
exam.
Number of Years (X) 3 4 4 5 3 6 2 7 3
Grades on Test (Y) 61 68 75 82 73 90 58 93 72
What...
Applicants for a particular job, which involves extensive travel in Spanish speaking countries, must take a...
Applicants for a particular job, which involves extensive travel
in Spanish speaking countries, must take a
proficiency test in Spanish. The sample data below were obtained in
a study of the relationship between the
numbers of years applicants have studied Spanish (x) and their
score on the test (y).
x 3 2 4 4 4 3 4 5 3 2
y 57 74 72 58 71 63 73 78 75 53
At the 5% significance level, predict the proficiency score...
Applicants for a job, which involves extensive travel in Spanish speaking countries, must take a proficiency...
Applicants for a job, which involves extensive travel in Spanish
speaking countries, must take a proficiency test in Spanish. The
sample data below were obtained in a study of the relationship
between the numbers of years applicants have studied Spanish (x)
and their score on the test (y). Conduct a formal hypothesis test
to test for a linear correlation between the number of years a
person has studied Spanish and their score on the test. Use a 0.05
significance level....
Applicants for a job, which involves extensive travel in Spanish speaking countries, must take a proficiency...
Applicants for a job, which involves extensive travel in Spanish
speaking countries, must take a proficiency test in Spanish. The
sample data below were obtained in a study of the relationship
between the numbers of years applicants have studied Spanish (x)
and their score on the test (y). Conduct a formal hypothesis test
to test for a linear correlation between the number of years a
person has studied Spanish and their score on the test. Use a 0.05
significance level....
Using the accompanying Student Grades data, construct a scatter chart for midterm versus final exam grades...
Using the accompanying Student Grades data, construct a scatter
chart for midterm versus final exam grades and add a linear
trendline. What is the model? If a student scores 7878 on the
midterm, what would you predict her grade on the final exam to
be?
Student
Midterm
Final Exam
1
75
64
2
85
91
3
80
68
4
88
83
5
76
60
6
67
80
7
78
74
8
95
94
9
67
61
10
93
87
11...
Question 1: Table 1 shows the number of customers visited by a salesman over an 80-week...
Question 1: Table 1 shows the number of customers visited by a
salesman over an 80-week period. Table 1: Customers Visited Over an
80-Week Period 68 64 75 82 68 60 62 88 76 93 73 79 88 73 60 93 71
59 85 75 61 65 75 87 74 62 95 78 63 72 66 78 82 75 94 77 69 74 68
60 96 78 89 61 75 95 60 79 83 71 79 62 67 97 78...
Applicants for a job, which involves extensive travel in Spanish speaking countries, must take a proficiency...
Applicants for a job, which involves extensive travel in Spanish
speaking countries, must take a proficiency test in Spanish. The
sample data below were obtained in a study of the relationship
between the numbers of years applicants have studied Spanish (x)
and their score on the test (y).
x
3
4
4
2
5
3
4
5
3
2
y
57
78
72
58
89
63
73
84
75
48
Predict the test score of a person who has studied...
Student Grades Student Test Grade 1 76 62 2 84 90 3 79 68 4 88...
Student Grades
Student
Test
Grade
1
76
62
2
84
90
3
79
68
4
88
84
5
76
58
6
66
79
7
75
73
8
94
93
9
66
65
10
92
86
11
80
53
12
87
83
13
86
49
14
63
72
15
92
87
16
75
89
17
69
81
18
92
94
19
79
78
20
60
71
21
68
84
22
71
74
23
61
74
24
68
54
25
76
97...
Applicants for a particular job, which involves extensive travel in Spanish-speaking countries, must take a proficiency...
Applicants for a particular job, which involves extensive
travel in Spanish-speaking countries, must take a proficiency test
in Spanish. The sample data were obtained in a study of the
relationship between the numbers of years (x) applicants have
studied Spanish and their score (y) on the test. Use the analysis
to find a 99% confidence interval for the true slope.
The regression equation is
ModifyingAbove y with caretyequals=31.53333plus+10.90476x,
with
R-sqequals=83.0%,
and
10minus−2equals=8
degrees of freedom.
Predictor
Coef
SE(Coef)
T
P...
Below represent scores on an exam, each entry one score for one student 40 99 59...
Below represent scores on an exam, each entry one score for one
student
40
99
59
98
63
63
64
65
67
35
67
67
68
70
71
71
71
46
72
72
60
73
74
74
74
75
97
75
62
76
76
76
76
76
77
57
77
98
77
63
78
78
78
79
79
80
80
80
80
80
81
81
92
81
93
82
82
83
83
83
83
83
83
83
84
84
84...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 14 minutes ago
asked 15 minutes ago
asked 16 minutes ago
asked 44 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago