Question

The lifetimes (in hours) of 20 devices have been measured and the results are show eloW n in the table b | Lifetime l # Lifetime # Lifetime # | Lifetime 1 2.494 6 2.715 11 6.434 16 0.713 2 1.296 75.922 12 0.718 17 0.199 3 4.350 8 1.190 13 2.259 18 3.929 4 0.271 9 0.391 140.197 19 2.934 5 0.515 10 0.520 15 0.242 20 2.721 Construct a quantile-quantile plot of the data assuming an exponential dis- tribution with mean equal to the sample mean. Compute the best-nt linear regression line and plot it on the quantile-quantile graph.

Answer 1

Case Processing Summary Lifetime 20 Series or Sequence Length Number of Missing Values in the Plot User-Missing System-Missing The cases are unweighted Estimated Distribution Parameters Lifetime 500 Exponential Distribution Scale The cases are unweighted

Detrended Exponential Q-Q Plot of Lifetime 0.9 0.6 O o 2 0.3 o 0.0 0.3 0.6 Observed Value

Lifetime Exponential Q-Q Plot of Lifetime Observed Value