# STATISTICS

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Standard error:

Is always the standard deviation divided by the square root of n.
Is a measure of the variability of a sample statistic.
Increases with bigger sample sizes.
All of the above.

• STATISTICS -

A study examining the relationship between fetal X-ray exposure and a particular type of childhood blood cancer found the following odds ratio (and 95% confidence interval) for the association: 2.44 (0.95 to 6.33). This result would likely be considered:

A) clinically significant, but statistically insignificant
B) neither clinically nor statistically significant
C) both clinically and statistically significant
D) clinically insignificant, but statistically significan

• STATISTICS (Partial) -

SEm = SD/√n

• STATISTICS -

• STATISTICS -

Oh now. I was right. You are wrong!

• STATISTICS -

Is a measure of the variability of a sample statistic.

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