Statistical Quality Control Techniques CTEL-TM-OTM Practice Questions (Page 6)

Questions 26–27

1. 26foundation · easy

   What does a process capability index (e.g., Cp) greater than 1.0 indicate?

   • AThe process spread is narrower than the specification limits
   • BThe process is in statistical control
   • CThe process is perfectly centered within the specification limits
   • DThe process is producing defects at a rate of less than 1%
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A test manager wants to determine if the defect density (defects per KLOC) differs between two development teams. Data from 15 projects for Team A and 12 projects for Team B is collected. The manager plans to use a hypothesis test. What is the most appropriate test?

   • AChi-square test for independence.
   • BTwo-sample t-test comparing the means of Team A and Team B.
   • CPaired t-test because the teams are from the same organization.
   • DOne-sample t-test comparing Team A's mean to a known value.
   Reveal Solution Discussion Select an answer first