Question: In a conformance test for Radio transmission and reception (FDD) as per 3GPP specifications, what is the minimum percentage of successful tests required to pass with a confidence level of 95%?
Option 1: More than 80% of the cases
Option 2: Exactly 90% of the cases
Option 3: More than 90% of the cases
Option 4: At least 95% of the cases
Explanation: To ensure a high degree of reliability in conformance testing for critical aspects like Radio transmission and reception (FDD), a stringent pass criterion is set. Requiring more than 90% of the tests to be successful with a confidence level of 95% ensures that the equipment meets the specifications with a high level of certainty, thereby guaranteeing performance and interoperability in real-world telecom networks. This threshold balances between achievable test rigor and the need for reliable outcomes, reflecting the importance of conformance in maintaining network standards.