Question: In a UE (User Equipment) conformance test for Radio transmission and reception, what is the primary reason for using the unchanged distribution as an approximation to calculate early fail and early pass bounds?
Option 1: The unchanged distribution simplifies analytical handling of the increasingly truncated distribution due to early pass/fail outcomes.
Option 2: The test procedure requires a fixed distribution format that cannot accommodate dynamic changes during the test.
Option 3: Early pass/fail decisions are based solely on the preliminary Error Rate (ER) without considering the sample distribution.
Option 4: The unchanged distribution is used to ensure all UEs undergo the full test duration regardless of intermediate results.
Explanation: As the test progresses and UEs either pass or fail early, the statistical pool changes, leading to a truncated distribution that becomes complex to analyze mathematically. Using the unchanged (original) distribution as an approximation allows for a more straightforward calculation of the bounds for early failure and passage, despite the evolving test conditions.