Question

To test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, the Jacobs Chemical Company obtained the following data on the time (in minutes) needed to mix the material Manufacturer 2 3 27 21 21 25 19 a. Use these data to test whether the population mean times for mixing a batch of material differ for the three manufacturers. Use α = .05 the values below (to 2 decimals, if necessary) Compute Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment Mean Squares, Error Calculate the value of the test statistic (to 2 decimals) The p-value is -Select your answe-v What is your conclusion? Select your answer - b. At the α = .05 level of significance, use Fisher's LSD procedure to test for the equality of the means for manufacturers 1 and 3 Calculate Fisher's LSD Value (to 2 decimals) What is your conclusion about the mean time for manufacturer 1 and the mean time for manufacturer 3? Select your answer

Answer 1

0 value 4400 1.89 o--o 0.0ユー Qintc

2- deci 5 7 3 meau eachebelao

*Program 1 CoMG RESULTS OUTPUT DATA LOG ine 1 data time; 2 input t man$ (aa; 3 cards; 4 15 1 27 2 22 3 21 1 25 2 21 3 19 1 30 2 25 3 17 1 26 2 24 3 6 run; 7 proc print data-time; run, 9 proc anova data time; 1e class man; 11 model t = man; 12 run;

The ANOVA Procedure Dependent Variable: t DF Sum of Squares Mean Square F Value PrF uITm Model 2 162 6666667 81.3333333 16.64 0.0009 4 0000000 48888889 Error 9 Total 11 206 6666667 R-Square Coeff Var Root MSEt Mean 0 787097 9 754779 2211083 22.66667 Source DF Anova SS Mean Square FValue Pr>F man 2 1626666667 81 3333333 16 64 00009

RGui (32-bit) File Edit Packages Windows Help 回回圜回圈 R Console ru Untitled-R Editor 晁 > t=qt (0 . 975, 9) mSw4.89 t-qt (0.975,9) msw 4.89 > lsd-t sqrt (msw (2/4) lsd-t sqrt (msw (2/4)) lsd [1 3.537221 1여