Question
In: Statistics and Probability
Elements 1-7 for Sample 1 are 11 7 9 12 13 15 15. Elements 1-7 for...
Elements 1-7 for Sample 1 are 11 7 9 12 13 15 15. Elements 1-7 for Sample 2 are 8 8 6 7 10 15 14.Construct a 95% conf.interval for the mean of the paired sample differences.
Solutions
Expert Solution
Sample 1 (X) Sample 2 (Y) d = X - Y
11 8 3
7 8 - 1
9 6 3
12 7 5
13 10 3
15 15 0
15 14 1
From the values of d, the following statistics are calculated:
n = 7
= 14/7 = 2
sd = 2.0817
SE = sd/
= 2.0817/
= 0.7868
ndf = 7 - 1 = 6
= 0.05
From Table, critical values of t = 
2.4469
Confidence intervaL;
t SE
= 2
(2.4469 X 0.7868)
= 2
1.9252
= (0.0748 , 3.9252)
orchestra answered 1 year agoRelated Solutions
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6, 7, 8, 6, 8, 7
a. Calculate the average
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The following is a sample of 20 measurements. 10 7 6 12 11 9 8 13...
The following is a sample of 20 measurements.
10 7 6 12 11 9 8 13 11 11 12 6 8 7 15 9 12 6 10 10
Compute the Sample mean (x), Sample variance (s2 ),
and the Sample standard deviation (s).
(round to two decimal places)
Count the number of measurements in the intervals
x ±s, x ±2s, x ±3s.
Express each count as a percentage of the total number of
measurements.
Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Number of Aides Absent
5
8
11
15
4
2
7
1
4
6
14
19
3
5
8
In which of the following ranges you can find the Upper Control
Limit of the control chart?
0.1427
0.1536
0.1677
Not computable with information available
In which of the following ranges you can find the Lower Control
Limit of the control chart?
Does not exit...
student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
student
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Test score
67
67
87
89
87
77
73
74
68
72
58
98
98
70
77
Above we have the final averages of the last stats and I want to
know if the class average falls within the boundaries of all my
statistics classes for the past 20 years.
Find the sample size, mean, and standard deviation of the data
above (Table 1)....
Use the sample space (5, 6, 7, 8, 9, 10, 11, 12, 13, 14) to find...
Use the sample space (5, 6, 7, 8, 9, 10, 11, 12, 13, 14) to find
the probability for a random selected
a) P(integer)
b) P(less than 10 | less than 13)
c) P(greater than 8 | less than 11)
d) P(greater than 7 | greater 12)
Promotional expenses(x) Sales(y 7 12 10 14 9 13 4 5 11 15 5 7 3...
Promotional expenses(x)
Sales(y
7
12
10
14
9
13
4
5
11
15
5
7
3
4
a) draw the scatter plot and draw the line of best fit
b) Calculate and interpret the correlation between promotional
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C) Calculate the regression equation( calculate the slope and
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e)Using the regression equation calculate the sales volume with
respect to promotional expense of 4.
f) Obtain the coefficient...
Construct a 90% confidence interval for σ for the following sample: {12, 13, 12, 11, 15}...
Construct a 90% confidence interval for σ for the following
sample: {12, 13, 12, 11, 15}
a) (.471, 4.562)
b) (1.665, 8.327)
c) (.985, 3.597)
d) (2.376, 9.682)
For the data set 1 2 3 4 7 7 7 8 11 12 12 15...
For the data set
1
2
3
4
7
7
7
8
11
12
12
15
15
16
17
17
17
18
20
20
22
24
24
25
26
26
26
26
27
30
32
32
33
34
34
36
38
39
43
44
45
46
47
47
48
51
52
52
53
54
54
54
55
56
58
58
59
61
63
65
65
67
69
70
73
75
75
76
77
77
79
80
81
82
82
(a)...
Answer all the question below. Table 2: 1 3 5 7 9 11 13 15 17...
Answer all the question below.
Table 2:
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
12.2373551424579
11.7708440253038
11.3114033194700
11.0981090241345
10.9917532871426
10.9633449623870
10.9328985186904
11.0609123182770
11.1447150124713
11.2994243413533
11.4699411879533
11.5862580969086
11.7887055678588
11.9277833926721
11.9332325617172
12.0027754228957
12.0455191817870
11.9895076044597
12.1161492247957
11.9142999902406
11.9523445384738
11.8444716643177
11.8325572681845
11.6394782554936
11.4409836766153
Visualize data in table 2 in a 2-dimensional
plot using Matlab.
Interpolate data in table 2 to determine a
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