statistics homework

need calculations shown and timely work

Chapter 12

16.

A computer manufacturer is about to unveil a new , faster personal computer. The new machine clearly is faster, but initial tests indicate there is more variation in the processing time. The processing time depends on the software, the amount to be processed, and the amount of output. A sample of 16 computer runs, covering a range of production jobs, showed the standard deviation of the processing time was 22( hundreths of a second) for the new machine and 12 (Hun.Of aSec.) for the current machine. At the .05 significance level can we conclude that there is more variation in the processing time of the new machine?

18.

Random samples of five were selected from each of three populations. The sum of squares total was 100. The sum of squares due to treatment was 40.

A. Set up null hypothesis and alternate hypothesis.

B. What is the decision rule? Use the .05 significant level.

C. Complete the ANOVA table. What is the value of F?

D. What is your decision regarding the null hypothesis?

22. is below ….

28 is below… it is split into two pics due to set up in book.

The rest of the question 28 is below… separated due to set up in book

32 is below…

46.

Question 50 is below

Question 58 is below it is separated in 2 pics because of set up in book