AT U - U.10, Can til method produces steel with a greater mean tensile strength? Assume the population variances are not equal. ding g test hod" 21. Teaching Methods A new method of teaching reading is being tested on third grade students. A group of third grade students is taught using the new curriculum. A control group of third grade students is taug using the old curriculum. The reading test scores for the two groups arr shown in the back-to-back stem-and-leaf plot. .303 Old Curriculum New Curriculum 6. ai 4 ce 9 88 4 33 2 1 2 4 7642 2 1 00 6. 0 11 4777778 99 011233 49 8 2 4 Key: 9 43 = 49 for old curriculum and 43 for new curriculum %3D At a = 0.10, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal.

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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.