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DAC Data Analytics Certification VIP Practice Exam
DAC — No single globally standardized 'DAC' credential exists; this is an original comprehensive practice set modeled on the core competency domains tested by leading data analytics certifications (Google Data Analytics Certificate, IBM Data Analyst Professional Certificate, and the Certified Analytics Professional / CAP exam by INFORMS), covering statistical analysis, data preparation, visualization, and business insight communication.
29
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 29👑 VIP
A retail analyst runs an A/B test to evaluate a new checkout flow. After two weeks, the treatment group shows a 4.2% lift in conversion rate with a p-value of 0.03. The company's standard significance threshold is α = 0.05. Before declaring a winner and shipping the change, which additional consideration is MOST critical to verify?
Questions 2–29 and full explanations are VIP-exclusive.