STA1502 Statistical Inference I (STA1502)
University of South Africa
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STA1502 TRIAL EXAMINATIO N PAPER 2022 (Questions and Answers)
- Exam (elaborations) • 29 pages • 2022
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STA1502 TRIAL 
EXAMINATIO 
N PAPER 2022 
(Questions and 
Answers) Assume that you have a sample of n1 D 9; with the sample mean XN1 D 42 and a sample standard 
deviation of S1 D 4; and you have an independent sample of n2 D 17 from another population with 
a sample mean of XN2 D 34 and the sample standard deviation S2 D 5: 
Test the hypothesis that the population mean for group 1 is greater than the population mean for 
group 2. 
Which one of the following statements is incorrect? 
1. There are ...
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STA1502 EXAM PACK 2022
- Exam (elaborations) • 117 pages • 2022
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- R72,00
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STA1502 EXAM 
PACK 2022 - STA1502 - Statistical Inference I
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