400 B.C. 131 138 125 129 132 135 132 134 138 1850 B.C. 129 134 136 137 137 129 1136 138 134 150B A.C. 128 138 136 139 141 142 137 145 137 Listed on the top are skull breadths obtained from skulls of Egyptian makes from three different epochs( based on the data from Ancient Races of the Thebaid by Thomson and Randall-Maciver). Assume that we plan to use analysis of variance with a 0.05 significance level to test the claim that the different epochs have mean skull breadths that are not all the same. The results from XI.STAT are shown down below.  Source DF Sum of squares Means squares F Pr>F Model 2 138.7407 69.3704 4.0497 0.0305 Error 24 411.1111 17.1296     Corrected Total 26 549.8519       1.What characteristics of the data indicates that we should use one way analysis of variance? 2. If  the test described in EXAMPLE 1 is conducted with a 0.05 significant level  what should be conclude about null hypothesis? And , (((What is the result suggest about the data?

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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.