Consider the following frequency distribution generated by Excel.What proportion of these values are less than 63? 
Definitions:
Standard Error
The standard deviation of the sample mean distribution or an estimate of that standard deviation.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values in the dataset deviate from the mean.
Sample Size
The number of observations or individuals included in a sample drawn from a population.
T-statistic
A ratio used in hypothesis testing that compares the observed difference between sample mean and the population mean relative to the sample variability.
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