Question

Use StatKey or other technology to find the correlation for the following data. X 14 21 28 35 42 49 56 63 Y 540 536 566 553 495 393 337 240 Click here to access StatKey. Round your answer to three decimal places.

Answer #1

a.) Use StatKey or other technology to find the
correlation for the following data.
X
4
6
2
8
9
Y
2
3
2.5
5
3.5
Round your answer to three decimal places.
The correlation is r=
b.) Use StatKey or other technology to find the
regression line to predict Y from X using the
following data.
X
6
10
4
14
12
Y
3
5
2
13.5
8.5
Round your answers to three decimal places.
The regression equation is...

Use StatKey or other technology to find the regression line to
predict Y from X using the following data. X 6 10 4 14 12 Y 3.5 6
3.5 12 11.5 Click here to access StatKey. Round your answers to
three decimal places. The regression equation is...

Use StatKey or other technology to find the correlation for the
following data.
X 12 18 24 30 36 42 48 54
Y 577 586 572 550 558 532 505 469
The correlation is r=

Estimating Summary Statistics Use the dataset given below. 27 ,
28, 30, 31, 31, 32, 32, 34, 34, 36, 39, 39, 40, 40, 42, 43,
(a) Without doing any calculations, estimate which of the
following numbers is closest to the mean. Show Hint Link to
Text
42, 39, 30, 35
(b) Without doing any calculations, estimate which of the
following numbers is closest to the standard deviation. Show Hint
Link to Text
5, 32, 40, 1, 10
c) Use StatKey...

Part 2 (Numerical Descriptive Techniques)
The following data represent the ages of a sample of 25
employees from a government department. Enter this data on a sheet
called Employee Data.
31
43
56
23
49
42
33
61
44 28
48
38
44
35
40
64
52
42
47 39
53
27
36
35 20
Find the median age.
Find the lower quartile of the ages.
Find the upper quartile of the ages.
Compute the range and...

6. Using the class data (see Blackboard file - "Class Survey
Data - PSS-10 and GAS") calculate the correlation between the GAS –
Goal disengagement and the GAS – Goal reengagement scores. Write
the results in a statistical statement.
7. Using the class data calculate the correlation between the
GAS – Goal disengagement and the PSS-10 scores. Write the results
in a statistical statement.
8. Using the class data calculate the correlation between the
GAS – Goal reengagement scores and...

The SAT and the ACT are the two major standardized tests that
colleges use to evaluate candidates. Most students take just one of
these tests. However, some students take both. The data data141.dat
gives the scores of 60 students who did this. How can we relate the
two tests? (a) Plot the data with SAT on the x axis and ACT on the
y axis. Describe the overall pattern and any unusual observations.
(b) Find the least-squares regression line and...

Table 1. Use the information to calculate the following
TC, AFC, AVC, ATC, AND MC (I through 50)
TP
TFC
TVC
TC
AFC
AVC
ATC
MC
150
0
(1)
(11)
(21)
(31)
(41)
2
150
70
(2)
(12)
(22)
(32)
(42)
3
150
130
(3)
(13)
(23)
(33)
(43)
4
150
240
(4)
(14)
(24)
(34)
(44)
5
150
300
(5)
(15)
(25)
(35)
(45)
6
150
360
(6)
(16)
(26)
(36)
(46)
7
150
390
(7)
(17)
(27)
(37)...

e SAT and the ACT are the two major standardized tests that
colleges use to evaluate candidates. Most students take just one of
these tests. However, some students take both. The data data76.dat
gives the scores of 60 students who did this. How can we relate the
two tests? (a) Plot the data with SAT on the x axis and ACT on the
y axis. Describe the overall pattern and any unusual observations.
(b) Find the least-squares regression line and...

The SAT and the ACT are the two major standardized tests that colleges use to evaluate candidates. Most students take just one of these tests. However, some students take both. The data data18.dat gives the scores of 60 students who did this. How can we relate the two tests?
(a) Plot the data with SAT on the x axis and ACT on the
y axis. Describe the overall pattern and any unusual
observations.
(b) Find the least-squares regression line and...

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