Question 1
4 out of 4 points
| In every experiment there is experimental error. Which of the following statements is true?Answer | ||||
| Selected Answer: This error can be changed statistically by increasing the degrees of freedomCorrect Answer: This error can be changed statistically by increasing the degrees of freedom |
Question 2
4 out of 4 points
| This technique is used to eliminate the effects of nuisance factors (e.g., machines, day of week, and season of year) from an experiment.Answer | ||||
| Selected Answer: BlockingCorrect Answer: Blocking |
Question 3
4 out of 4 points
| An aspect of good experimental strategy is to study the effects of the variables (Xs) over a wide range. This strategy increases the chances that effects will be found because:Answer | ||||
| Selected Answer: The size of the effect relative to the experimental variation is increasedCorrect Answer: The size of the effect relative to the experimental variation is increased |
Question 4
4 out of 4 points
| A 32 experiment means that we are experimenting with:Answer | ||||
| Selected Answer: Three levels of two factorsCorrect Answer: Three levels of two factors |
Question 5
4 out of 4 points
| Given the plot below, what might you suspect about factors A and B? Answer | ||||
| Selected Answer: The effect of A depends on the level of BCorrect Answer: The effect of A depends on the level of B |
Question 6
4 out of 4 points
| Which type of variation was critical to resolving the realized revenue case study?Answer | ||||
| Selected Answer: Structural variationCorrect Answer: Structural variation |
Question 7
4 out of 4 points
| Figure 2.15 displays a model of the statistics discipline, showing the relationship between statistical thinking, statistical engineering, and statistical methods and tools. Which of the following is a principle illustrated by this model?Answer | ||||
| Selected Answer: Statistical engineering links the methods and tools to the statistical thinking philosophy, to ensure they are appropriately appliedCorrect Answer: Statistical engineering links the methods and tools to the statistical thinking philosophy, to ensure they are appropriately applied |
Question 8
4 out of 4 points
| The model residuals are examined to:Answer | ||||
| Selected Answer: All of the aboveCorrect Answer: All of the above |
Question 9
4 out of 4 points
| A statistic that is used to indicate too much correlation between the predictors in a regression analysis is called the:Answer | ||||
| Selected Answer: Variance inflation factorCorrect Answer: Variance inflation factor |
Question 10
4 out of 4 points
| The best way to evaluate the validity of a statistical model is:Answer | ||||
| Selected Answer: All of the aboveCorrect Answer: All of the above |
Question 11
4 out of 4 points
| George Box tells us “all models are wrong but some are useful”. By this comment he means:Answer | ||||
| Selected Answer: B and CCorrect Answer: B and C |
Question 12
4 out of 4 points
| Models based on subject matter fundamentals (theory) are generally better than statistical models for:Answer | ||||
| Selected Answer: A and BCorrect Answer: A and B |
Question 13
4 out of 4 points
| We are testing the null hypothesis that the average monthly revenue between four insurance offices is the same. We obtained a p-value of .07. Which of the following would be an appropriate conclusion about the population?Answer | ||||
| Selected Answer: None of the aboveCorrect Answer: None of the above |
Question 14
4 out of 4 points
| I have calculated an interval to document the uncertainty in my estimate of the long-term standard deviation I will experience in time to pay invoices in my business going forward. Baaed on this information, this should be considered what type of interval?Answer | ||||
| Selected Answer: Confidence interval for a parameterCorrect Answer: Confidence interval for a parameter |
Question 15
0 out of 4 points
| After running an ANOVA comparing the average years of experience between five different job classifications, we obtained a p value of .02. Which of the following would be a reasonable conclusion concerning the population in this case?Answer | ||||
| Selected Answer: None of the aboveCorrect Answer: We have strong evidence to state that at least two of the job classifications have different average ages |
Question 16
4 out of 4 points
| For which of the following scenarios am I most likely to utilize a Chi-squared test?Answer | ||||
| Selected Answer: Comparing the proportion of employees who take 10 or more sick days a year between three manufacturing plantsCorrect Answer: Comparing the proportion of employees who take 10 or more sick days a year between three manufacturing plants |
Question 17
4 out of 4 points
| Which of the following could be considered a prediction interval?Answer | ||||
| Selected Answer: An interval documenting uncertainty in the average of the next month’s daily revenuesCorrect Answer: An interval documenting uncertainty in the average of the next month’s daily revenues |
Question 18
4 out of 4 points
| Improvement is needed for an organization to survive because:Answer | ||||
| Selected Answer: All of the aboveCorrect Answer: All of the above |
Question 19
4 out of 4 points
| Control limits were originally defined at the three-sigma level because:Answer | ||||
| Selected Answer: This level provides a good balance between the risks of having “false alarms” and missing special causesCorrect Answer: This level provides a good balance between the risks of having “false alarms” and missing special causes |
Question 20
4 out of 4 points
| If my histogram appears bimodal, what tool might help me evaluate why?Answer | ||||
| Selected Answer: StratificationCorrect Answer: Stratification |
Question 21
4 out of 4 points
| In evaluating data on our process outputs, four characteristics we might investigate are: central tendency, variation, shape of distribution, and stability. Which of the following tools would be most helpful to determine stability of the process?Answer | ||||
| Selected Answer: Run chartCorrect Answer: Run chart |
Question 22
4 out of 4 points
| The histogram has which of the following limitations?Answer | ||||
| Selected Answer: It hides the effect of process instabilityCorrect Answer: It hides the effect of process instability |
Question 23
4 out of 4 points
| Non-random and unpredictable patterns on a control chart indicate:Answer | ||||
| Selected Answer: Special cause variationCorrect Answer: Special cause variation |
Question 24
4 out of 4 points
| Refer to Figure 3.21 and choose the correct statement for the measurementsAnswer | ||||
| Selected Answer: Measure C is not accurate but has good precisionCorrect Answer: Measure C is not accurate but has good precision |
Question 25
4 out of 4 points
| Processes are important because:Answer | ||||
| Selected Answer: All of the aboveCorrect Answer: All of the above |
Place an Order
Plagiarism Free!
Create an Account
Create an account at Top Tutor Online
- Allows you to track orders.
- Receive personal messages.
- Send messages to a tutor.
Post a Question/ Assignment
Post your specific assignment
- Tutors will be notified of your assignment.
- Review your question and include all the details.
- A payment Link will be sent to you.
Wait for your Answer!
Make payment and wait for your answer
- Make payment in accordance with the number of pages to be written.
- Wait for your Answer as a professional works on your paper.
- You will be notified when your Answer is ready.