Q3 Measurements on call-failures in a Telephone Central Office (TCO) compiled over eight bimonthly data, i = 1, 2, ..., 6 indicate random values (RVS) with corresponding frequency of occurrence (n.). Relevant assessments done at two independent sites of TCO X and TCO Y and pertinent details are listed below. (The percentage values (Cx and Cy) shown are measures off- sets of call-failures with respect to a reference of zero value) Bimonthly Index TCO X TCO Y Cx, % A Cy% Determine the following: i-1 i-2 i-3 i-4 5.1 81 Answer (Check!) (7.26, 22.92): (5.68, (6.29, 38.35) 8.25) 2.5 6.4 7.8 33 12 9 30 21 16 8 10 32 23 7 22 19 Hint: The associated RV refers to: (Percentage of call-failures (Cx or Cy) * n/100) - Actual number of call-failures Eur 18 17 43 i-5 i-6 i-7 i-8 5.9 3.4 134 42 75 iii iv (4.82-3.92(+ 2.456 8.19)-4.12) +1.998) 8.7 2.5 v 48 (v) Skewness of central tendency of the RV in terms of relevant Pearson coefficient 9 147 (i) Expected average and variance of the RV in each site, [E[x], V(x); E[y], V(y)] (ii) Inter-quartile ranges (IQRs) of the RVs at X and Y. (iii) Average performance of the RVs at X and Y expressed in terms of their approximate GM values (iv) Off-sets of expected mean with respect to median in each case: (Median- E[-]) NTotal=572 Total =173
Q3 Measurements on call-failures in a Telephone Central Office (TCO) compiled over eight bimonthly data, i = 1, 2, ..., 6 indicate random values (RVS) with corresponding frequency of occurrence (n.). Relevant assessments done at two independent sites of TCO X and TCO Y and pertinent details are listed below. (The percentage values (Cx and Cy) shown are measures off- sets of call-failures with respect to a reference of zero value) Bimonthly Index TCO X TCO Y Cx, % A Cy% Determine the following: i-1 i-2 i-3 i-4 5.1 81 Answer (Check!) (7.26, 22.92): (5.68, (6.29, 38.35) 8.25) 2.5 6.4 7.8 33 12 9 30 21 16 8 10 32 23 7 22 19 Hint: The associated RV refers to: (Percentage of call-failures (Cx or Cy) * n/100) - Actual number of call-failures Eur 18 17 43 i-5 i-6 i-7 i-8 5.9 3.4 134 42 75 iii iv (4.82-3.92(+ 2.456 8.19)-4.12) +1.998) 8.7 2.5 v 48 (v) Skewness of central tendency of the RV in terms of relevant Pearson coefficient 9 147 (i) Expected average and variance of the RV in each site, [E[x], V(x); E[y], V(y)] (ii) Inter-quartile ranges (IQRs) of the RVs at X and Y. (iii) Average performance of the RVs at X and Y expressed in terms of their approximate GM values (iv) Off-sets of expected mean with respect to median in each case: (Median- E[-]) NTotal=572 Total =173
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
![Q3
Measurements on call-failures in a Telephone Central Office (TCO) compiled over eight
bimonthly data, i = 1, 2, ..., 6 indicate random values (RVS) with corresponding frequency of
occurrence (n.). Relevant assessments done at two independent sites of TCO X and TCO Y and
pertinent details are listed below. (The percentage values (Cx and Cy) shown are measures off-
sets of call-failures with respect to a reference of zero value)
Bimonthly Index
TCO X
Cx, %
n
TCO Y
Determine the following:
i=1 i-2 i-3
SA
81
Answer (Check!)
2.5 6.4
33
12
(7.26, 22.92): (5.68,
(6.29, 38.35) 8.25)
i-4-5 i-6 li=7 i=8
3.4
75
7.8
134
5.9
Cy, %
19
EIP 18
30
2.5 21
16
8
10
17
43
32
23
17
22
19
Hint: The associated RV refers to: (Percentage of call-failures (Cx or Cy) x n/100) - Actual
number of call-failures
iii iv
(4.82-3.92, (+ 2.456,
8.19)-4.12) +1.998)
42
8.7
48
19
(v) Skewness of central tendency of the RV in terms of relevant Pearson
coefficient
147
(i) Expected average and variance of the RV in each site, [E[x], V(x); E[y], V(y)]
(ii) Inter-quartile ranges (IQRs) of the RVs at X and Y.
(iii) Average performance of the RVs at X and Y expressed in terms of their
approximate GM values
(iv) Off-sets of expected mean with respect to median in each case: (Median-
E[-])
YAMP Q1
NTotal=872
Total =173](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0672c66-d9ec-404c-9f92-a46bd3f48ef5%2Fc2853a8f-f5f4-40e2-939f-e88927da54b9%2Faa4865y3_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q3
Measurements on call-failures in a Telephone Central Office (TCO) compiled over eight
bimonthly data, i = 1, 2, ..., 6 indicate random values (RVS) with corresponding frequency of
occurrence (n.). Relevant assessments done at two independent sites of TCO X and TCO Y and
pertinent details are listed below. (The percentage values (Cx and Cy) shown are measures off-
sets of call-failures with respect to a reference of zero value)
Bimonthly Index
TCO X
Cx, %
n
TCO Y
Determine the following:
i=1 i-2 i-3
SA
81
Answer (Check!)
2.5 6.4
33
12
(7.26, 22.92): (5.68,
(6.29, 38.35) 8.25)
i-4-5 i-6 li=7 i=8
3.4
75
7.8
134
5.9
Cy, %
19
EIP 18
30
2.5 21
16
8
10
17
43
32
23
17
22
19
Hint: The associated RV refers to: (Percentage of call-failures (Cx or Cy) x n/100) - Actual
number of call-failures
iii iv
(4.82-3.92, (+ 2.456,
8.19)-4.12) +1.998)
42
8.7
48
19
(v) Skewness of central tendency of the RV in terms of relevant Pearson
coefficient
147
(i) Expected average and variance of the RV in each site, [E[x], V(x); E[y], V(y)]
(ii) Inter-quartile ranges (IQRs) of the RVs at X and Y.
(iii) Average performance of the RVs at X and Y expressed in terms of their
approximate GM values
(iv) Off-sets of expected mean with respect to median in each case: (Median-
E[-])
YAMP Q1
NTotal=872
Total =173
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