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Data Science Dumps For EMC- E20-007

Question ID 16132

Which word or phrase completes the statement? Business Intelligence is to monitoring
trends as Data Science is to ________ trends.

Option A

Predicting

Option B

 Discarding

Option C

Driving

Option D

Optimizing

Correct Answer A
Description
Update Date and Time 2017-12-14 03:30:03

 

Question ID 16133

The average purchase size from your online sales site is $17, 200. The customer
experience team believes a certain adjustment of the website will increase sales. A pilot
study on a few hundred customers showed an increase in average purchase size of $1.47,
with a significance level of p=0.1.
The team runs a larger study, of a few thousand customers. The second study shows an
increased average purchase size of $0.74, with a significance level of 0.03. What is your
assessment of this study?

Option A

The change in purchase size is not practically important, and the good p-value of the second study is probably a result of the large study size.

Option B

The change in purchase size is small, but may aggregate up to a large increase in profits over the entire customer base.

Option C

The difference in the change in purchase size between the two studies is troubling; The team should run another, larger study.

Option D

The p-value of the second study shows a statistically significant change in purchase size. The new website is an improvement.

Correct Answer A
Description
Update Date and Time 2017-12-14 03:37:42

 

 

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