Question: In a conformance test for Radio transmission and reception (TDD) as per 3GPP specifications, if the pass criterion is set at a confidence level that allows for some margin of error, what is the minimum percentage of successful tests required for the test to be considered passed?
Option 1: 80% with a variable confidence level
Option 2: Less than 90% but with a 100% confidence level
Option 3: More than 90% with a specified (though unspecified here) confidence level
Option 4: Exactly 95% with no confidence level specified
Explanation: This question requires understanding of conformance testing in telecom, specifically the criteria for passing a test. The correct answer reflects that for a test to pass, it typically requires a high success rate (more than 90% in this context) coupled with a defined confidence level, which may vary but is crucial for statistical reliability. This setup ensures the device's performance meets the specified standards with a acceptable margin of error.