s thhe standard devviation of 2.37901 (giiven in thhe summmary sttatistics table above) a sample standard deviation or a poppulation stanndard deviationn? A. Populattion stanndard devivation B. Sampple sttandard devviation Provvide a 90% connfidence intnerval esttimate forr the true average call duration. Hint: Use popppulation std instead of sammple std whennever poppulation std is given. That is to use σ=2 instead of s = 2.37901. A.6.1478 ± 1.645 × 2 / √100 B. 6.1478 ± 1.96 × 2 / √100 C. 6.1478 ± 2 D. 6.1478 ± 1.96 × 2.37901 / √100 E. 6.1478 ± 1.645 × 2.37901 / √100 Whatt is thhe marrgin of errror in your callculation for Part 2? Hint: Usee poppulation std insstead of sammple std whennever population std is given. That is to use σ=2 instead of s = 2.37901. A. 2.37901 / √100 B. 1.645 × 2.37901 / √100 C. 2 / √100 D. 1.645 × 2 / √100 E. 1.96 × 2.37901 / √100 D. 1.96 × 2 / √100
s thhe standard devviation of 2.37901 (giiven in thhe summmary sttatistics table above) a sample standard deviation or a poppulation stanndard deviationn? A. Populattion stanndard devivation B. Sampple sttandard devviation Provvide a 90% connfidence intnerval esttimate forr the true average call duration. Hint: Use popppulation std instead of sammple std whennever poppulation std is given. That is to use σ=2 instead of s = 2.37901. A.6.1478 ± 1.645 × 2 / √100 B. 6.1478 ± 1.96 × 2 / √100 C. 6.1478 ± 2 D. 6.1478 ± 1.96 × 2.37901 / √100 E. 6.1478 ± 1.645 × 2.37901 / √100 Whatt is thhe marrgin of errror in your callculation for Part 2? Hint: Usee poppulation std insstead of sammple std whennever population std is given. That is to use σ=2 instead of s = 2.37901. A. 2.37901 / √100 B. 1.645 × 2.37901 / √100 C. 2 / √100 D. 1.645 × 2 / √100 E. 1.96 × 2.37901 / √100 D. 1.96 × 2 / √100
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
s thhe standard devviation of 2.37901 (giiven in thhe summmary sttatistics table above) a sample standard deviation or a poppulation stanndard deviationn?
A. Populattion stanndard devivation
B. Sampple sttandard devviation
Provvide a 90% connfidence intnerval esttimate forr the true average call duration. Hint: Use popppulation std instead of sammple std whennever poppulation std is given. That is to use σ=2 instead of s = 2.37901.
A.6.1478 ± 1.645 × 2 / √100
B. 6.1478 ± 1.96 × 2 / √100
C. 6.1478 ± 2
D. 6.1478 ± 1.96 × 2.37901 / √100
E. 6.1478 ± 1.645 × 2.37901 / √100
Whatt is thhe marrgin of errror in your callculation for Part 2? Hint: Usee poppulation std insstead of sammple std whennever population std is given. That is to use σ=2 instead of s = 2.37901.
A. 2.37901 / √100
B. 1.645 × 2.37901 / √100
C. 2 / √100
D. 1.645 × 2 / √100
E. 1.96 × 2.37901 / √100
D. 1.96 × 2 / √100
Transcribed Image Text:(Mins)
1
10.24
Local
9.51
Local
3
9.37
Local
4
6.69
Local
1.55
Local
6
6.47
Local
7
7.13
Long distance
8
8.05
Local
9
9.92
Local
10
6.11
Local
11
3.60
Local
12
8.63
Local
13
10.12
Local
14
4.96
Local
15
4.48
Long distance
16
8.78
Long distance
17
9.31
Long distance
18
5.92
Local
19
3.31
Long distance
20
-1.48
Local
21
4.22
Local
22
10.50
Long distance
23
8.14
Local
24
9.41
Local
25
7.46
Local
26
0.06
Local
27
9.49
Local
85
6.19
Local
86
5.56
Local
87
7.96
Local
88
3.30
Local
89
8.02
Local
90
4.83
Local
91
8.57
Long distance
92
6.71
Local
93
5.95
Local
94
8.40
Long distance
95
3.64
Long distance
96
4.38
Local
97
6.29
Long distance
98
5.91
Local
99
1.73
Local
100
6.60
Local
Transcribed Image Text:Summary Statistics for Duration
Count
Average
Median
Mode
Variance
Standard deviation 2.37901
Minimum
Maximum
Range
Lower quartile
Upper quartile
Interquartile range 3.235
100
6.1478
6.085
5.65968
|-1.48
10.7
12.18
4.805
8.04
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