Which of the following is NOTa requirement of testing a claim about the mean of the differences from dependent samples? Choose the correct answer below. O A. The samples are simple random samples. O B. The sample data are dependent. O C. Either the number of pairs of sample data is larger than 30 or the pairs have differences that are from a population having a distribution that is approximately normal, or both. O D. The degrees of freedom are n-2.

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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.