Question
Given the data (-1, 0), (3, 8), (4, 13), (9, 19), (12, 27), find the following...
Given the data (-1, 0), (3, 8), (4, 13), (9, 19), (12, 27), find the following
- Least-squares regression line (round to four decimal places)
- Find Linear Correlation Coefficient for the above Least Squares Regression line
- Find the Standard Error of Estimate for the above Least Squares Regression line
- Find the Interval Estimate at 95% significance level of the slope for the above Least Squares Regression line. Give the lower bound
- give the upper bound
- Find The Margin of Error for the above Interval Estimate of the Slope (round to 5 decimal places)
Homework Answers
Answer #1
The Lower bound and Upper bound for beta estimate will be 1.44572 and 2.53147 respectively
se( 
) means standard error of beta estimate
Not the answer you're looking for?
Similar Questions
Given the data below, Number of Police Officers 4 6 8 9 10 12 12 13...
Given the data below, Number of Police Officers 4 6 8 9 10 12 12
13 15 20 26 28 Number of Crimes 49 42 38 31 24 24 28 23 21 19 12
14
a) Test for correlation coefficient at the 5% level of
significance and make a conclusion
b) Testing the significance of the slope of the regression line
at the 5% level of significance and make a conclusion
c) What is the regression equation? What is the...
The four data sets below were created by statistician Francis Anscomb. They show why it is...
The four data sets below were created by statistician Francis
Anscomb. They show why it is important to examine the scatter plots
for your data, in addition to finding the correlation coefficient,
in order to evaluate the appropriateness of fitting a linear
model.
Set 1
Set 2
Set 3
Set 4
x
y
x
y
x
y
x
y
10
8.04
10
9.14
10
7.46
8
6.58
8
6.95
8
8.14
8
6.77
8
5.76
13
7.58
13
8.74
13...
1.Find the value of the linear correlation coefficient r. Round to 3 decimal places. (47, 8),...
1.Find the value of the linear correlation coefficient
r. Round to 3 decimal places.
(47, 8), (46, 10), (27, 10)
2.Find the value of the linear correlation coefficient
r. Round to 3 decimal places.
(57, 156), (53, 164), (59, 163)
3. Find the value of the linear correlation coefficient
r. Round to 3 decimal places.
(2, 7), (4, 11), (5, 13)
1) Suppose we gather the following sample: X 32 22 36 42 39 27 25 37...
1) Suppose we gather the following sample:
X
32
22
36
42
39
27
25
37
30
28
Using this sample, calculate the upper bound for the 95%
confidence interval.
Round your answer to four decimal places.
2)
Suppose we gather the following sample:
X
11
15
19
37
40
10
43
13
17
41
Using this sample, calculate the lower bound for the 95%
confidence interval.
Round your answer to four decimal places.
Consider the data. xi 1 2 3 4 5 yi 4 7 6 10 13 The...
Consider the data.
xi
1
2
3
4
5
yi
4
7
6
10
13
The estimated regression equation for these data is
ŷ = 1.70 + 2.10x.
(a) Compute SSE, SST, and SSR using equations SSE =
Σ(yi −
ŷi)2, SST =
Σ(yi −
y)2, and SSR =
Σ(ŷi −
y)2.
SSE=
SST=
SSR=
(b) Compute the coefficient of determination
r2.
r2=
Comment on the goodness of fit. (For purposes of this exercise,
consider a proportion large if it...
Use the sample data and confidence level given below to complete parts (a) through (d). A...
Use the sample data and confidence level given below to complete
parts (a) through (d).
A research institute poll asked respondents if they felt
vulnerable to identity theft. In the poll, n=1075 and x=514 who
said "yes." Use a 95 % confidence level.
a) Find the best point estimate of the population proportion p.
_____ (Round to three decimal places as needed.)
b) Identify the value of the margin of error E. E=_____(Round
to three decimal places as needed.)
c)...
The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4,...
The following sample data are from a normal population: 8, 6,
10, 13, 11, 9, 4, 3.
(a)
What is the point estimate of the population mean?
(b)
What is the point estimate of the population standard deviation?
(Round your answer to three decimal places.)
(c)
With 95% confidence, what is the margin of error for the
estimation of the population mean? (Round your answer to one
decimal place.)
(d)
What is the 95% confidence interval for the population mean?...
The following data are quiz scores for two quizzes from 8 students in a class. First...
The following data are quiz scores for two quizzes from 8
students in a class.
First Quiz
Second Quiz
10
12
11
13
13
15
15
19
29
27
33
28
35
29
40
38
Least-squares Regression Line
1) What is the least-squares regression line? Round to three
decimal places.
ˆy=
2) Prediction
Predict the score of the second quiz if a student scored 49 on
the first quiz. Round to one decimal place.
=
Use the sample data and confidence level given below to complete parts (a) through (d). A...
Use the sample data and confidence level given below to complete
parts (a) through (d).
A drug is used to help prevent blood clots in certain patients.
In clinical trials, among 4994 patients treated with the drug,
180 developed the adverse reaction of nausea. Construct a 95%
confidence interval for the proportion of adverse reactions.
a) Find the best point estimate of the population
proportion p.
(Round to three decimal places as needed.)
b) Identify the value of the margin...
If n=27, ¯ x (x-bar)=46, and s=9, find the margin of error at a 95% confidence...
If n=27, ¯ x (x-bar)=46, and s=9, find the margin of error at a
95% confidence level (use at least two decimal places)
If n=19, ¯xx¯ (x-bar)=48, and s=6, find the margin of error at a
95% confidence level (use at least two decimal places)
If n=16, ¯xx¯ (x-bar)=48, and s=6, find the margin of error at a
99% confidence level (use at least three decimal places)
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 4 minutes ago
asked 4 minutes ago
asked 9 minutes ago
asked 13 minutes ago
asked 20 minutes ago
asked 21 minutes ago
asked 22 minutes ago
asked 29 minutes ago
asked 42 minutes ago
asked 50 minutes ago
asked 1 hour ago
asked 1 hour ago