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In a Student's t-test, what is the meaning of the p-value?
In a Student's t-test, what is the meaning of the p-value?A . it is the area under the appropriate tails of the Student's distributionB . it is the "power" of the Student's t-testC . it is the mean of the distribution for the null hypothesisD . it is the mean...
Which key role for a successful analytic project can provide business domain expertise with a deep understanding of the data and key performance indicators?
Which key role for a successful analytic project can provide business domain expertise with a deep understanding of the data and key performance indicators?A . Business Intelligence AnalystB . Project ManagerC . Project SponsorD . Business UserView AnswerAnswer: A
What should be done?
You submit a MapReduce job to a Hadoop cluster. Although the job was successfully submitted, you notice that it is not completing. What should be done?A . Ensure that a DataNode is runningB . Ensure that the TaskTracker is runningC . Ensure that the NameNode is runningD . Ensure that...
In linear regression modeling, which action can be taken to improve the linearity of the relationship between the dependent and independent variables?
In linear regression modeling, which action can be taken to improve the linearity of the relationship between the dependent and independent variables?A . Apply a transformation to a variableB . Use a different statistical packageC . Calculate the R-Squared valueD . Change the units of measurement on the independent variableView...
Which formula finds the correct Euclidean distance?
You are attempting to find the Euclidean distance between two centroids: Centroid A's coordinates: (X = 2, Y = 4) Centroid B's coordinates (X = 8, Y = 10) Which formula finds the correct Euclidean distance?A . SQRT((2-8)2+(4-10)2) or 8.49B . SQRT(((2-8) x 2) + ((4-10) x 2)) or 12.17C...
Which window function is missing?
You are provided with the following list. Which window function is missing? cume_dist() dense_rank() rank() percent_rank() first_value() last_value() lag() lead() ntile()A . row_preceding()B . row_number()C . median()D . cumulative_sum()View AnswerAnswer: B
To ensure a successful analytic project, which key role can consult and advise the project team on the value of end results and how these will be used on a daily basis?
To ensure a successful analytic project, which key role can consult and advise the project team on the value of end results and how these will be used on a daily basis?A . Business UserB . Project ManagerC . Data ScientistD . Business Intelligence AnalystView AnswerAnswer: A
What is an appropriate assignment for a data scientist?
What is an appropriate assignment for a data scientist?A . Monitor key performance indicatorsB . Define an OLAP database schemaC . Conduct customer surveysD . Develop predictive modelsView AnswerAnswer: D
What is a core deliverable at the end of the analytic project?
What is a core deliverable at the end of the analytic project?A . An implemented database designB . A whitepaper describing the project and the implementationC . A presentation for project sponsorsD . The training materialsView AnswerAnswer: C
Which SQL OLAP extension provides all possible grouping combinations?
Which SQL OLAP extension provides all possible grouping combinations?A . CUBEB . ROLLUPC . UNION ALLD . CROSS JOINView AnswerAnswer: A
