Question

Use the data in the table below to complete parts (a) through (c).

x y

4 27

7 36

9 29

12 32

14 25

18 25

20 22

45 9

(a) Construct a scatterplot of the data

(b) Identify any possible outliers.

(c) Determine if the point is influential.

Answer #1

A. A Scatter Plot will be constructed in the Form of Graph using the given value of X and YB. Outliers are the ponts which are quite away and not inline with the rest of the Points, Here the Last Point having 45 at X axis and 9 and Y Axis does not seems in trend with other point could be outlier

C. To find the if the point is influential or not we will run the regression in excel twice. Once with the Outlier point and then excluding the point .And if the Intercept vary alot we can say that outlier is influential. After running the regression we find that Intercepts are 34.78 with all data set and 34.36 excluding Outlier. It does not seem to be very much influential

Use the data in the table below to complete parts (a) through
(d). x 38 33 41 47 44 50 59 54 52 y 21 20 24 29 26 27 25 21 24
LOADING... Click the icon to view details on how to construct and
interpret residual plots. (a) Find the equation of the regression
line. ModifyingAbove y with caret equals nothing x plus left
parenthesis nothing right parenthesis (Round to three decimal
places as needed.)

4. Use the given data set to complete parts (a) through (c)
below. (Use a=0.05.)
x
y
10
9.13
8
8.13
13
8.73
9
8.78
11
9.27
14
8.09
6
6.13
4
3.09
12
9.14
7
7.27
5
4.73
a. Construct a scatterplot
Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
The linear correlation coefficient is r=_____.
(Round to three decimal places as...

Use the given data set to complete parts (a) through (c) below.
(Use alpha = 0.05).
x
y
10
7.46
8
6.78
13
12.74
9
7.12
11
7.82
14
8.83
6
6.07
4
5.39
12
8.15
7
6.43
5
5.74
a. Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
r = _____.
b. Identify the feature of the data that would be missed...

Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
1010
88
1313
99
1111
1414
66
44
1212
77
55
y
7.467.46
6.766.76
12.7412.74
7.117.11
7.827.82
8.848.84
6.086.08
5.385.38
8.168.16
6.436.43
5.735.73
LOADING...
Click here to view a table of critical values for the
correlation coefficient.
a. Construct a scatterplot. Choose the correct graph below.
A.
04812160481216xy
A scatterplot has a horizontal x-scale from 0 to 16 in
increments of 2 and a vertical...

Use the given data set to complete parts (a) through (c)
below. (Use
alphaαequals=0.05.)
x
1010
88
1313
99
1111
1414
66
44
1212
77
55
y
7.457.45
6.786.78
12.7412.74
7.117.11
7.817.81
8.858.85
6.096.09
5.395.39
8.148.14
6.416.41
5.735.73
LOADING...
Click here to view a table of critical values for the
correlation coefficient.
b. Find the linear correlation coefficient, r, then determine
whether there is sufficient evidence to support the claim of a
linear correlation between the two variables.
The linear...

Use the given data set to complete parts? (a) through? (c)
below.? (Use alphaequals?0.05.) x 10 8 13 9 11 14 6 4 12 7 5 y 9.14
8.13 8.75 8.77 9.26 8.11 6.13 3.11 9.13 7.27 4.74 LOADING... Click
here to view a table of critical values for the correlation
coefficient. a. Construct a scatterplot. Choose the correct graph
below. A. 0 4 8 12 16 0 2 4 6 8 10 x y A scatterplot has a
horizontal...

Provide an appropriate response. Use the data to identify any
outliers.
16 27 1 32 15
5 18 9 20 14
17 19 16 10 21
28 14 36 18

Data set for ages of students in stats class:
17, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,19,
20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23,
24, 25, 25, 25, 26, 26, 27, 28, 28, 28, 28, 29, 29, 32, 36, 42
1) Compute the 5-number summary and create a modified box-plot,
using the inner-quartile range to identify any outliers.

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
4560
patients treated with the drug,
163
developed the adverse reaction of nausea. Construct a
90%
confidence interval for the proportion of adverse reactions.
a) Find the best point estimate of the population proportion
p.
b) Identify the value of the margin of error E.
c) Construct the confidence...

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 929 and x equals 570 who said "yes." Use a 90 %
confidence level.
a) Find the best point estimate of the population proportion
p.
b) Identify the value of the margin of error E.
c) Construct the confidence interval.

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