The data in the following table give readings in foot-pounds of the impact strength of two kinds of packaging material, type A and type B. Determine whether the data suggests a difference in mean strength between the two kinds of material. Test at the = .10 level of significance. A B 1.25 .89 1.16 1.01 1.33 .97 1.15 .95 1.23 .94 1.20 1.02 1.32 .98 1.28 1.06 1.21 .98 yi = 11.13 y = 1.237 y2 i = 13.7973 yi = 8.80 y = .978 y2 i = 8.6240
Chapter1: Data and Decisions What do you think isStatistics What are statistics Hal Varian (GoogleChief Economist) video on Statistics and Data; http://www.youtube.com/watchv=D4FQsYTbLoI “The sexy profession of the next decade will be statistician.” He made the quote in 2008 Varian then goes on to say: “The ability to take data - to be able to understand it, to process it, to extract value from it, to visualize it, to communicate it'sgoing to be a hugely important skill in the next decades, not only at the professional level but even at the educational level for elementary school kids, for high school kids, for college kids. ….. I do think those skills - of being able to access, understand, and communicate the insights you get from data analysis - a
