Applying the Concepts and SkillsStudy Time and Score.  An instructor at Arizona State University asked a random sample of eight students to record their study times in a beginning calculus course. She then made a table for total hours studied (x) over 2 weeks and test score (y) at the end of the 2 weeks. Here are the results. x 10 15 12 20 8 16 14 22 y 92 81 84 74 85 80 84 80 Crown-Rump Length. Following are the data on age of fetuses and length of crown-rump from Exercise 15.26. x 10 10 13 13 18 19 19 23 25 28 y 66 66 108 106 161 166 177 228 235 280 At the 10% significance level, do the data provide sufficient evidence to conclude that age and crown-rump length are linearly correlated?

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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.