1. A manufacturer produces a batch ofmemory chips (RAM) and measures the mean-ti
ID: 2916414 • Letter: 1
Question
1. A manufacturer produces a batch ofmemory chips (RAM) and measures the mean-time-between-failures(MTBF). The manufacturer then changes a manufacturing process andproduces another batch and again measures the MTBF. Did the changeto the process improve the MTBF? ____
2. From a written survey where therespondents were asked to rate an individual on a scale of 1 to 5,one group rated an individual a 3.7, another group rated theindividual a 4.3. Is the difference statisticallysignificant? ____
3. A catering company is buyingequipment in order to set up their own store. They have a choice oftwo ovens that they can purchase for the store. The used oven is$100 less than the new oven, but its heating calibration is off by20 degrees. Which one is a better buy for them? ____
4. Jim Smith owns three real estateoffices in Anytown. He has decided to open one more office, but hecannot decide between Hometown or Uptown as the town where he wantsto locate. He will be comparing the mean number of homes sold perreal estate agent, and the mean commission percentage earned byagents in the two towns to make his decision. ____
Explanation / Answer
1) Parametric (P) 2) Non Parametric (NP) 3) Parametric (P) 4) Parametric (P)Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.