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EMC DEA-7TT2 Exam covers various topics related to Big Data Analytics such as Data Science, Data Analytics, Machine Learning, Statistics, Business Intelligence, Data Visualization, Hadoop, Spark, and NoSQL Databases. DEA-7TT2 exam is designed to validate the candidate's skills and knowledge of industry-standard Big Data Analytics tools such as Tableau, R, Python, and SAS. Associate - Data Science and Big Data Analytics v2 Exam certification program is suitable for IT professionals who want to gain expertise in Big Data Analytics and assist their organizations in generating insights and making data-driven decisions.

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EMC Associate - Data Science and Big Data Analytics v2 Exam Sample Questions (Q117-Q122):

NEW QUESTION # 117
You do a Student's t-test to compare the average test scores of sample groups from populations A and B. Group A averaged 10 points higher than group B. You find that this difference is significant, with a p-value of 0.03.
What does that mean?
Response:

A. There is a 3% chance that a sample group from population A will score 10 points higher that a sample group from population B.
B. The difference in scores between a sample from population A and a sample from population B will tend to be within 3% of 10 points.
C. There is a 97% chance that a sample group from population A will score 10 points higher that a sample group from population B.
D. There is a 3% chance that you have identified a difference between the populations when in reality there is none.

Answer: D

NEW QUESTION # 118
In which phase of the analytic lifecycle would you expect to spend most of the project time?
Response:

A. Data preparation
B. Discovery
C. Operationalize
D. Communicate Results

Answer: A

NEW QUESTION # 119
In which lifecycle stage are initial hypotheses formed?
Response:

A. Data preparation
B. Discovery
C. Model building
D. Model planning

Answer: B

NEW QUESTION # 120
To ensure a successful analytic project, which key role can provide business domain expertise with a deep understanding of the data and key performance indicators?
Response:

A. Project Sponsor
B. Business User
C. Business Intelligence Analyst
D. Project Manager

Answer: C

NEW QUESTION # 121
What should be subtracted to remove a simple linear trend from a time series?
Response:

A. Cubic-spline
B. Expected squared deviation
C. Expected absolute deviation
D. Least-squares-fit line

Answer: D

NEW QUESTION # 122
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