A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample of 16 workers is obtained. Half (n = 8) attend the workshop and the other half (n = 8) serve as a control group. Two weeks later, each of the participants is given a questionnaire measuring the level of self-confidence.State the null and alternate hypothesis for a two-tailed t-test (in mathematical symbols) also state the null and alternate hypothesis for a one-tailed t-test (in mathematical symbols) where you expect the group that attends the workshop to have higher self-confidence scores lastly, state the null and alternate hypothesis for a one-tailed t-test (in mathematical symbols) where you expect the group that attends the workshop to have lower self-confidence scores.

The question is about formulation of null and alt. hypo. Introduction : Tail of test : 1 ) If alt.…

Answered: A major company would like to assess…

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample of 16 workers is obtained. Half (n = 8) attend the workshop and the other half (n = 8) serve as a control group. Two weeks later, each of the participants is given a questionnaire measuring the level of self-confidence.
1. State the null and alternate hypothesis for a two-tailed t-test (in mathematical symbols) also state the null and alternate hypothesis for a one-tailed t-test (in mathematical symbols) where you expect the group that attends the workshop to have higher self-confidence scores lastly, state the null and alternate hypothesis for a one-tailed t-test (in mathematical symbols) where you expect the group that attends the workshop to have lower self-confidence scores.

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