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are U.S. workers? One way to answer this question is to study annual profits per in quipment (I11), and broadcasting (IV) gave the following data regarding annual profits per employee (units in thousands of dollars). IV 27.3 13.8 22.2 17.3 23.4 9.5 20.6 16.6 14.6 12.7 15.3 7.3 1O.1 7.3 11.6 8.8 6.9 19.3 14.2 11.7 nal s e re eet or not reject the ciai n that there is no difference in populato n mean annual profits per employee in each of the four mes or compares? Use a 5% level of si tance. (a) What is the level of significance? State the null and alternate hypotheses Mo: μι . μ2-U3-Ha; Hi : All four means are different. Hg: μ., μ2-μ3-Ha; Hz : Not all the means are equal. Mo: μι μ2-μ3-Ha; H2 : Exactly three means are equal. Mo: μ.-P2-μ3-14; HI : Exactly two means are equal. (b) Find SSTOT, SSBET, and SSw and check that SSror -SSBEr+SSw (Use 3 decimal places.) SSToT- SSBeT Find d.f. BET, d.f.w. MSBET, and MSw. (Use 3 decimal places for MSBET, and MSw dBET MSBET-
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