Question: A design engineer gives you the following data for your standard product. You know from numerous previous samples that its reliable life is normally distributed

A design engineer gives you the following data for your standard product. You know from numerous previous samples that its reliable life is normally distributed with a mean of 335 days and a standard deviation of 19.2 days. On a recent production run, she tested the duration of random samples with these results: Sample 1 Sample 2 Sample 3 Sample 4 335.0 317.0 353.5 334.0 343. 5 338.0 345.6 343.0 345.3 337.4 327.0 302.4 322.6 316.2 326.5 348.8 What is the sample mean service life for sample 2? (Keep one decimal place) Your Answer: Answer Question 32 (6 points) Saved ATM transaction times for a specific bank branch are being monitored and the following data has been collected. Each sample contained 17 items. .41 Sample Mean Range 4.06 .42 4.15 .50 4.11 4.13 4.06 4.20 Calculate the lower and upper control limits for the range. (Keep three decimal places) Lower - 0.185 Upper - 0.716 Lower = 0.171 Upper - 0.729 O Lower - 4.028

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