A political science professor wants to determine her students’ attitude toward a presidential executive order preventing the construction of the Keystone Natural Gas pipeline.  She has a sample of 50 students complete an interval level, 7-point scale assessing their attitude toward the policy where 1 = highly unfavorable 2= moderately unfavorable, 3 =  slightly unfavorable, 4 = neutral, 5 = slightly favorable, 6 = moderately favorable, 7 = highly favorable.   The sample mean is 4.6 with a standard deviation  of  1.2. Using α = .01 what can she conclude regarding her students’ attitude toward the policy?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.