RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

STANDARD ERROR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
T/F:If error bars overlap, the there is a statistically significant difference between the two data sets.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Here is a simpler rule: If two SEM error bars do overlap, and the sample sizes are equal or nearly equal, then you know that the P value is (much) greater than 0.05, so the difference is not statistically significant. The opposite rule does not apply.

Detailed explanation-2: -Error bars are graphical representations of the variability of data and used on graphs to indicate the error or uncertainty in a reported measurement. They give a general idea of how precise a measurement is, or conversely, how far from the reported value the true (error free) value might be.

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