Question

Use the paired data below to test the claim that there is a correlation between x and y, using α=0.05. Round your answer to 3 decimal places.

x | 3 | 5 | 7 | 15 | 16 |

y | 8 | 11 | 7 | 14 | 20 |

Group of answer choices

p-value=0.670, evidence not support claim

p-value=0.067, evidence not support claim

p-value=0.067, evidence support claim

p-value=0.852, evidence not support claim

p-value=0.670, evidence support claim

Answer #1

1.
Use the paired data below to test the claim that there is a
correlation between x and y, using α=0.05. Round your answer to 3
decimal places.
x
46.6
27.2
43.1
29
34.8
y
8
8
3
9
2
Group of answer choices
p-value=0.692, evidence support claim
p-value=0.692, evidence not support claim
p-value=0.615, evidence not support claim
p-value=0.307, evidence not support claim
p-value=0.615, evidence support claim
2.
We interviewed a group of adult residents at Chill town, and ask...

We interviewed a group of adult residents at Chill town, and ask
them how many hours they sleep each night. Below are the data,
broken down according to location:
Group
Location
Sample size
Average
Standard deviation
1
Rural
43
8.6
2.03
2
Urban
35
8.76
1.81
Find a 95% confidence interval for the difference between the
two means. Round your answer to 3 decimal places. What conclusion
can you draw?
Group of answer choices
(-1.027,0.707) No conclusion
(-0.163,-0.157) Group 2...

A medical researcher wants to study the length of time it takes
three types of pain relievers to provide relief from headache pain.
The results (in minutes) are shown in the table below.
Type
1
Type
2
Type
3
12
16
14
15
14
17
17
21
20
12
15
15
14
19
17
Using the data above, test the claim that the means are equal
for all 3 groups. Use 0.05 as the significance level. Round your
answer to...

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...

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...

Assume that the paired data came from a population that is
normally distributed. Using a
0.05 significance level and
d=x −y,
find overbar d, sd, the t test statistic, and the critical
values to test the claim that
mu Subscript dμd=0.
x y
16 13
14 15
18 15
16 13
9 5
9 7
15 14
0 5
overbar d = 0
(Round to three decimal places as needed.)

Suppose you want to test the claim the the paired sample data
given below come from a population for which the mean difference is
μd=0. x- 85, 78, 50, 87, 66, 60, 90 y- 73, 81, 61, 73, 59, 86, 68
Use a 0.05 significance level to find the following: (a) The mean
value of the differnces d for the paired sample data d⎯⎯= (b) The
standard deviation of the differences d for the paired sample data
sd= (c) The...

Assume that the paired data came from a population that is
normally distributed. Using a 0.05 significance level and d=x-y
find d overbar, sd, the t-test statistic, and the critical values
to test the claim that ud=0
x 16 15 3 3 9 20 15 11
y 13 13 5 5 6 15 13 8

Answer the correlation questions using the data below. Use α =
0.05.
x
y
9
6
8
3
7
4
7
1
0
1
0
1
0
0
a) Compute the correlation.
r = ____
b) Compute the appropriate test statistic(s) for
H1: ρ > 0.
critical value = ____ ; test statistic = ____
Decision: ---Select--- Reject H0 or Fail to reject
H0
c) Compute the corresponding effect size(s) and
indicate magnitude(s).
If not appropriate, input and/or select "na" below....

(1 point) Suppose you want to test the claim the paired sample
data given below come from a population for which the mean
difference is ??=0μd=0.
x values - 77, 76, 87, 75, 88, 52, 90
y values - 64, 92, 85, 60, 57, 70, 75
Use a 0.05 significance level to find the following:
(a) The mean value of the differences ?d for
the paired sample data
?⎯⎯⎯=d¯=
(b) The standard deviation of the
differences ?d for the paired sample data...

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