Question
In: Statistics and Probability
Use the accompanying set of dependent and independent variables to complete parts a through d below....
Use the accompanying set of dependent and independent variables to complete parts a through d below.
|
y |
10 |
11 |
15 |
15 |
20 |
24 |
27 |
32 |
|
|---|---|---|---|---|---|---|---|---|---|
|
x 1 |
2 |
5 |
5 |
9 |
7 |
11 |
16 |
21 |
|
|
x 2 |
16 |
10 |
13 |
10 |
2 |
8 |
7 |
4 |
Click the icon to view the data set.
a) Construct a 95% confidence interval for the dependent variable when x1=9 and x 2=11.
The 95% confidence interval is from a lower limit of ______ to an upper limit of _______
(Round to two decimal places as needed.)
b. interpret the meaning of the interval constructed in part a.
c. Construct a 95% prediction interval for the dependent variable when x1=9 and x2=11
d. Interpret the meaning of the interval contracted in part c.
Solutions
orchestra answered 3 years agoRelated Solutions
Consider the following set of dependent and independent variables. Use this data to complete parts a...
Consider the following set of dependent and independent
variables. Use this data to complete parts a and b below.
Construct a 95% confidence interval for the regression
coefficient for x1
y x1 x2
10 2 15
14 7 8
15 5 12
17 9 12
22 6 0
23 12 9
29 13 5
33 20 2
a. The 95% confidence interval for the true population
coefficient B1 is _____ to _____. (Round to three decimal places
as needed.)
b....
Consider the accompanying set of dependent and independent variables. The variable x3 is qualitative with H=...
Consider the accompanying set of dependent and independent
variables. The variable x3 is qualitative with H= High, M= Medium,
and L= Low. Complete parts a and b below.
y x1 x2 x3
70 51 73 L
60 42 64 M
63 37 80 H
52 42 50 M
40 28 42 L
43 22 45 L
35 20 37 M
10 16 18 H
4 12 13 H
a. Using technology, construct a regression model using all
three independent variables....
For the data set shown below, complete parts (a) through (d) below. X 3 4 5...
For the data set shown below, complete parts (a) through (d)
below. X 3 4 5 7 8 Y 3 5 8 12 13
(a) Find the estimates of Bo and B1.
Bo=bo= _____ (Round to three decimal places as needed.)
B1=b1= ______(Round to four decimal places as needed.)
(b) Compute the standard error the point estimate for
se= ____
(c) Assuming the residuals are normally distributed,
determine
Sb1=____ (Round to four decimal places as needed.)
(d) Assuming the residuals...
For the data set shown below, complete parts (a) through (d) below. X 20 30 40...
For the data set shown below, complete parts (a) through (d)
below.
X 20 30 40 50 60
Y 98 95 91 81 68
(a) Find the estimates of Bo and B1.
Bo=bo= _____ (Round to three decimal places as needed.)
B1=b1= ______(Round to four decimal places as needed.)
(b) Compute the standard error the point estimate for
se= ____
(c) Assuming the residuals are normally distributed,
determine
Sb1=____
(Round to four decimal places as needed.)
(d) Assuming the residuals...
For the data set shown below, complete parts (a) through (d) below. X 3 4 5...
For the data set shown below, complete parts (a) through (d)
below. X 3 4 5 7 8 Y 4 7 6 12 15 (a) Find the estimates of Bo and
B1. Bo=bo= _____ (Round to three decimal places as needed.) B1=b1=
______(Round to four decimal places as needed.) (b) Compute the
standard error the point estimate for se= ____ (c) Assuming the
residuals are normally distributed, determine Sb1=____ (Round to
four decimal places as needed.)
(d) Assuming the residuals...
For the data set shown below, complete parts (a) through (d) below. x y 20 102...
For the data set shown below, complete parts (a) through (d)
below. x y 20 102 30 95 40 91 50 81 60 68 (a) Use technology to
find the estimates of beta 0 and beta 1. beta 0 ~ b 0=_____(Round
to two decimal places as needed.) beta 1 ~ b 1=_____(Round to two
decimal places as needed.) (b) Use technology to compute the
standard error, the point estimate for o' (o with a little tag on
the top)...
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=1007 and
x=571 who said yes. Use a 95% confidecne level.
A. find the best point of estimate of the population of portion
p. (Round to three decimal places as needed.)
B. Identify the value of the margin of error E. E= round to four
decimal places as needed....
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=950 and
x=592 who said yes. Use a 95% confidecne level.
A. find the best point of estimate of the population of portion
p. (Round to three decimal places as needed.)
B. Identify the value of the margin of error E. E= round to four
decimal places as needed....
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 equals 994 and x equals 526 who said "yes." Use a 90 %
confidence level. LOADING... Click the icon to view a table of z
scores. a) Find the best point estimate of the population
proportion p. 0.529 (Round to three decimal places as needed.)
b) Identify the...
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 equals 944 and x equals 575 who said "yes." Use a 99 %
confidence level. LOADING... Click the icon to view a table of z
scores. a) Find the best point estimate of the population
proportion p. . 609 (Round to three decimal places as needed.)
b) Identify...
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