Question
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 |
|---|---|---|---|---|
|
Constant |
31.53333 |
6.360418 |
4.957745 |
0.00111 |
|
Number of years |
10.90476 |
1.744054 |
6.252538 |
0.000245 |
Homework Answers
Answer #1
TOPIC:Confidence interval for the slope of a regression equation.
(The answer has been rounded to two decimal places).(ANSWER)
Not the answer you're looking for?
Similar Questions
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
Give the equation of the regression line. Round coefficients to...
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...
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....
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).
x
3
4
4
2
5
3
4
5
3
2
y
57
78
72
58
89
63
73
84
75
48
Would it make sense to use the regression line to...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 13 minutes ago
asked 13 minutes ago
asked 20 minutes ago
asked 30 minutes ago
asked 34 minutes ago
asked 35 minutes ago
asked 36 minutes ago
asked 44 minutes ago
asked 54 minutes ago
asked 55 minutes ago
asked 1 hour ago
asked 1 hour ago