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Dr.Kwan hypothesizes that allowing factory employees to listen to music while working will improve productivity.After conducting the experiment,Dr.Kwan finds that the group of participants who were allowed to listen to music was more productive than the group who did not,but this difference was not statistically significant.What should Dr.Kwan conclude about the difference between the two groups?
Probability Range
A span of values within which a probable outcome is expected to occur, often expressed as a percentage.
Standard Deviation
A statistical measure of the dispersion of returns for a given security or market index.
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