17. A computer scientist is investigating the usefulness of two different design languages in improving programming tasks. Ten expert programmers who are familiar with both languages are asked to code a standard function in both languages and the time (in minutes) is recorded. The data and the Minitab output are as follows. Programmer Design language 17 1 3 4. 6. 8 9. 10 16 21 14 24 16 14 21 23 Design language 18 11 10 19 Paired T-Test and Cl: Language 1, Language 2 Paired T for Language 1 - Language 2 Mean StDev SE Mean 3.63 1.15 Language 1 Language 2 Difference 10 18.40 10 17.20 4.94 1.56 10 1.200 2.974 0.940 95% lower bound for mean difference: -0.524 T-Test of mean difference = 0 (vs > 0): T-Value = 1.28 Assume the populations to be normally distributed. 24 13 21 5/8 23 19 14
17. A computer scientist is investigating the usefulness of two different design languages in improving programming tasks. Ten expert programmers who are familiar with both languages are asked to code a standard function in both languages and the time (in minutes) is recorded. The data and the Minitab output are as follows. Programmer Design language 17 1 3 4. 6. 8 9. 10 16 21 14 24 16 14 21 23 Design language 18 11 10 19 Paired T-Test and Cl: Language 1, Language 2 Paired T for Language 1 - Language 2 Mean StDev SE Mean 3.63 1.15 Language 1 Language 2 Difference 10 18.40 10 17.20 4.94 1.56 10 1.200 2.974 0.940 95% lower bound for mean difference: -0.524 T-Test of mean difference = 0 (vs > 0): T-Value = 1.28 Assume the populations to be normally distributed. 24 13 21 5/8 23 19 14
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:17. A computer scientist is investigating the usefulness of two different design
languages in improving programming tasks. Ten expert programmers who are
familiar with both languages are asked to code a standard function in both
languages and the time (in minutes) is recorded. The data and the Minitab output
are as follows.
Programmer
Design language 17
1
3.
8.
6.
10
16
21
18
24
16
14
21
23
Design language 18
14
19
11
23
21
10
19
24
Paired T-Test and Cl: Language 1, Language 2
Paired T for Language 1
Language 2
N
Mean
StDev
SE Mean
18.40
3.63
1.15
Language 1
Language 2
Difference
10
10
17.20
4.94
1.56
10
1.200
2.974
0.940
95% lower bound for mean difference: -0.524
T-Test of mean difference = 0 (vs > 0): T-Value = 1.28
Assume the populations to be normally distributed.
13
5
14
4.
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