Use the formula for CI, CI = X z (sx/n), to answer the following questions.
Question:
Use the formula for CI, CI = X̅ ± z∗ (sx/√n), to answer the following questions.
a. What can a researcher do to z* to make a CI narrower?
b. What can a researcher do to n to make a CI wider?
c. If a researcher wanted to maximize her chances of creating a CI that includes μ, what should she do to z* and n?
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Solution a The researcher can increase z to make the CI narrower b The ...View the full answer
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Related Book For
Statistics For The Social Sciences A General Linear Model Approach
ISBN: 9781107576971
1st Edition
Authors: Russell T. Warne
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