Introduction to Hypothesis Testing Introduction to Probability Theory and Heath Statistics Professor: September 12, 2014 The concept of hypothesis testing focuses on evaluating the probability of getting observed results through the P-value (Davis & Mukamal, 2006). The measures of spread are potentially useful in estimation and prediction. Nonetheless, the measures typically indicate how observations are spread out and scattered. As the number of observations increases, the data is likely to have a normal distribution, but it can also be skewed to the right or left. The standard deviation and the range are the most common measures of variability. The spread of the observation also changes with an increase in the umber of observation.
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