Asked by Leslie Nguyen on Jun 04, 2024
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An investigator conducts a statistical test to determine whether the difference between the experimental group and the control group was statistically significant. Other things being equal, the difference is most likely to be significant if
A) the standard deviation was high for each group.
B) the mean of one group was much larger than the mean of the other group.
C) both groups had a small number of participants.
D) the mean for each group was about the same size as the standard deviation.
Standard Deviation
A statistical measure of the dispersion or variability within a data set, indicating how spread out the numbers are from the mean.
Statistically Significant
This term implies that the likelihood of the results happening by random chance is very low, underlining the importance of the findings.
Mean
In statistics, the arithmetic average of a set of numbers, calculated by adding all the values together and then dividing by the number of values.
- Appreciate the value of larger sample sizes and their influence on the reliability of study results.
- Comprehend the principle of statistical significance and its effects on the results of experiments.
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Learning Objectives
- Appreciate the value of larger sample sizes and their influence on the reliability of study results.
- Comprehend the principle of statistical significance and its effects on the results of experiments.
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