A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?
A. The manufacturing process is functioning properly and no further action is required
B. A larger sample size should be taken to determine if the plant is operating correctly
C. A smaller sample size should be taken to determine if the plant is operating correctly
D. There is a flaw in the quality assurance process and the sample should be repeated

Answer: A

What is required in a presentation for project sponsors?

What is required in a presentation for project sponsors?
A. The "Big Picture" takeaways for executive level stakeholders
B. Data warehouse design changes
C. Line by line review of the developed code
D. Detailed statistical basis for the modeling approach used in the project

Answer: A

Your customer provided you with 2, 000 unlabeled records and asked you to separate them into three groups. What is the correct analytical method to use?

Your customer provided you with 2, 000 unlabeled records and asked you to separate them into three groups. What is the correct analytical method to use?
A. K-means clustering
B. Linear regression
C. Naive Bayesian classification
D. Logistic regression

Answer: A

You are assigned to do an end of the year sales analysis of 1, 000 different products, based on the transaction table. Which column in the end of year report requires the use of a window function?

Refer to the exhibit.

image024 - 
You are assigned to do an end of the year sales analysis of 1, 000 different products, based on the transaction table. Which column in the end of year report requires the use of a window function?
You are assigned to do an end of the year sales analysis of 1, 000 different products, based on the transaction table. Which column in the end of year report requires the use of a window function?
A. Total Sales to Date
B. Daily Sales
C. Average Daily Price
D. Maximum Price

Answer: A

A disk drive manufacturer has a defect rate of less than 1.0% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?

A disk drive manufacturer has a defect rate of less than 1.0% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?
A. The manufacturing process should be inspected for problems.
B. A larger sample size should be taken to determine if the plant is functioning properly
C. A smaller sample size should be taken to determine if the plant is functioning properly
D. The manufacturing process is functioning properly and no further action is required.

Answer: A

Which algorithm is most appropriate for this study?

You are studying the behavior of a population and are provided with multi-dimensional data at the individual level. You have identified four specific individuals who are valuable to your study. You would like to find all users who are most similar to each individual.
Which algorithm is most appropriate for this study?
A.K-means clustering
B.Linear regression
C.Association rules
D.Decision trees

Answer: A