As confidence increases, a confidence interval would.get narrowerO get widerO shift lower (both bounds)shift higher (both bounds)I conducted a trial study and found I had my power was 71%. What could Ido to increase the statistical power of a test for the full study?switch to a non-parametric test for normally distributed dataO decrease my alpha valueO change the experimental design to permit an independent sample test,rather than a paired testincrease the sample size for a future trial

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As confidence increases, a confidence interval would. get narrower get wider )shift lower (both bounds) )shift higher (both bounds)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

As confidence increases, a confidence interval would.
get narrower
O get wider
O shift lower (both bounds)
shift higher (both bounds)
I conducted a trial study and found I had my power was 71%. What could I
do to increase the statistical power of a test for the full study?
switch to a non-parametric test for normally distributed data
O decrease my alpha value
O change the experimental design to permit an independent sample test,
rather than a paired test
increase the sample size for a future trial

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