Mathematics Homework Help

Refer to the Excel file Pallet (attached to the assignment) to address all the questions below:

The file contains the weight in pounds from a sample of 368 pallets of Boston shingles and 330 pallets of Vermont shingles.

1. For
   the Boston shingles, is there evidence at the 0.05 level of
   significance that the population mean weight is different from 3150
   pounds?
2. Interpret the meaning of the p-value in (1)
3. For
   the Vermont shingles, is there evidence at the 0.05 level of
   significance that the population mean weight is different from 3700
   pounds?
4. Interpret the meaning of the p-value in (3)
5. In (1) through (4) do you have to be concerned about the normality assumption? Explain.

Refer to the Excel file Phone for the assignment below:

The
file contains samples of 20 problems reported to two different offices
of a telecommunication company and the time to clear these problems in
minutes from the customers’ lines.

1. Assuming
   that the population variances from both offices are equal, is there
   evidence of a difference in the mean waiting time between the two
   offices at the 0.05 significance level.
2. Find the p-value in question (1) and interpret the meaning.
3. What other assumptions are needed for question (1)?