Which Task Is Not Essential During a Data Conversion Procedure

question 68

Multiple Choice

Which task is not essential during a data conversion procedure?

• A) decomposing the system
• B) validating the database
• C) reconciliation of new and old databases
• D) backing up the original files

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Definitions:

Alternative Hypothesis

In hypothesis testing, the hypothesis that proposes a difference or effect, contrary to the null hypothesis, which implies no effect or difference.

Null Hypothesis

A statement or assumption that there is no effect or no difference, and it serves as the starting point for statistical testing.

Sample Proportion

The fraction or percentage of observations in a sample that belong to a particular category, used to estimate the proportion in the entire population.

Two-Tailed Hypothesis

A statistical test hypothesis that considers both directions of deviation from the null hypothesis, thus testing for the possibility of both positive and negative effects.