6. [15 points] A gas barbeque grill has three components: regulator value, burner, and ignitor. The individual reliability of the three components are 0.94, 0.97, and 0.95. a. What is the reliability of the grill? Show calculations. b. After a revision of the grill's design, the reliability of the first component was increased to 0.96. The second and third component's reliabilities were unchanged. What is the new I reliability of the test? Show calculations. c. What percent improvement in reliability in the grill? (Hint: Calculate the percent increase in reliability compared to the original reliability. You must use the % change formula to calculate the percent improvement). Show calculations. 7. [15 points] Given the following diagram, determine the total system reliability if the individual component reliabilities are: A = 0.85, B = 0.90, C = 0. 89, and D=0.85. (Hint: Use equations 5.2 and 5.3 and note that the reliabilities of the parallel components are different.) A C B