Step 2

Data Set A

Data Set B

Step 2

1. Find the equation for the least-squares line, and graph the line on the scatter plot.
2. Find the sample correlation coefficient r and the coefficient of determination r². Is r significant? What criteria did you use to determine if it was significant? For each set of data
3. What predictions can you make using this data sets? Write a brief explanation of what you found in the data sets.

DATA 2

CORRELATION MATRIX

1. What is the sum of squares regression for the full model? (Correct answer is 58, please show me how to get there)

2. What is the residual error in using the full model to predict Y for ID C? (Correct answer is +1, please show me how to get there)

DATA 2

CORRELATION MATRIX

Comparing the zero order model and full model

1. Did the addition of X₂ and X₃ significantly increase R²? (correct answer is No,p>.01;Type II error is possible, please show me how to get there)

2. What is the adjusted R2 for the full model? (correct answer is 0.742, please show me how to do it)

Consider the following reference string:

7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1

Find the number of Page Faults with FIFO, Optimal Page Replacement, and LRU with four free frames that are initially empty. Which algorithm gives the minimum number of page faults?

For a random sample of 20 automobile models, we record the value of the model as a new car and the value after the car has been purchased and driven 10 miles.¹ The difference between these two is a measure of the depreciation on the car just by driving it off the lot. Depreciation values from our sample of 20 automobile models can be found in the dataset CarDepreciation.

Click here for the dataset associated with this question.

(a) Find the mean and standard deviation of the Depreciation amounts in CarDepreciation.

Mean =$

Standard deviation =

(b) Use StatKey or other technology to create a bootstrap distribution of the sample mean of depreciations. Describe the center and spread of this distribution.

Center =

Standard error =

(c) Use the standard error obtained in your bootstrap distribution to find a 95% confidence interval for the mean amount a new car depreciates by driving it off the lot.

The interval is $ to


¹New and used automobile costs were determined using 2015 models on kellybluebook.com.

Corrections to Balance Sheet

Minett Boatbuilders Company prepared the following balance sheet:

Your analysis of these accounts reveals the following information:

Required:

Based on your analysis, prepare a properly classified December 31, 2019, balance sheet for Minett Boatbuilders.

data set

Part 1
Using the same data set, analyze the data for Midwest region. Do the following:
(1) Obtain a histogram and boxplot for the data (revisit one of the earlier lab reports).
(2) You need to test whether the mean number of years of education in this region is significantly different from 5.5. State the hypotheses.
(3) Perform an appropriate test of hypotheses; copy and paste the results.
(4) Identify the test statistic and the p-value, and state the decision.
(5) Interpret the p-value (see Week 5 module), and answer the research question.

Part 2
Using the same data set, consider the data for Southeast and West regions. Do the following:
(1) You need to test whether there is a significant difference in the mean number of years of education beyond high school between the two regions. State the hypotheses.
(2) Perform an appropriate test of hypothesis; copy and paste the results.
(3) Identify the test statistic and the p-value, and state the decision.
(4) Interpret the p-value (see Week 5 module), and answer the research question.
(5) Identify the 95% confidence interval for the mean difference, and interpret the result. How does this result relate to the results in parts (3) and (4) Be specific.

Support your conclusion with specific calculations.

Which of the following names is correct?

Create 4 Weibull distributions using the data below.

Distribution Alpha Beta

1                 1       0.5

2                 1        1

3                 1         2

4                 4.5     6.2

Please show how to plot the four graphs and all excel commands

Thank you!

#1: Define Natural, Human, Social and Financial/Physical capital.

4 sentences, 1 on each

#2: As engineers should we be prepared to discuss,

debate and understand how our Government makes its

decisions on allocated Government revenue.

Paragraph

#3. When doing a CBA analysis is it important if the

party paying the cost does not enjoy the benefit?

2/3 sentences