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

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 ...