Math Solutions

(Steps Shown) A study examined how long aircraft air conditioning units operated after being repaired. Here are the operating times (in hrs) for one unit

Question: A study examined how long aircraft air conditioning units operated after being repaired. Here are the operating times (in hrs) for one unit (Excel exam file worksheet Question 1):

21 26 36 41 53 71 72 82 83
89 90 106 108 109 111 112 117 131
132 151 178 205 209 252 261 279 295

Is the five number summary or the mean and standard deviation a better brief summary for this distribution? Explain your choice. Calculate the one of these summaries that you choose.

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