Question 1

Which of the following statistical methods refers to the probability that a population parameter will fall between a set of values for a certain proportion of times?

Options :

A : Percent difference

B : Confidence intervals

C : Frequencies/percentages

D : Percent change

Answer: B

Question 2

The sales grocery store had an average of $8000 per day. The store introduced several advertising campaigns

in order to increase sales. To determine whether the advertising campaigns have been effective in increasing

sales, a sample of 64 days of sales was selected, and the sample mean was $8000 per day.

The correct null and alternative hypotheses to test whether there has been a significant increase are

Options :

A : Null Sample mean is $8000; Alternative Sample mean is greater than or equal to $8000.

B : Null Sample mean is $8000; Alternative Sample mean is greater than $8000.

C : Null Population mean is $8000; Alternative; Population mean is greater than or equal to $8000.

D : Null Population mean is $8000; Alternative; Population mean is greater than $8000.

Answer: D

Question 3

Given the following data tables:

Which of the following MDM processes needs to take place FIRST?

Options :

A : Creation of a data dictionary

B : Compliance with regulations

C : Standardization of data field names

D : Consolidation of multiple data fields

Answer: A

Question 4

Which of the following inferential statistical methods is a statistical test used to compare observed results with expected results?

Options :

A : t-tests

B : Chi-squared

C : p-values

D : Z-score

Answer: B

Question 5

A sales director has requested a report for individual team members within the division be developed. The director would like the report to be shared with all team members, but individual team members should not be identifiable within the report Which of the following access requirements would support the director's needs?

Options :

A : Create an acceptable use policy for the sales data.

B : Release the report as user-group-based access and include data masking.

C : Get a data use agreement from the individual team members.

D : Provide the report based on role and include data encryption.

Answer: B