launch : this numbers the temperature-sorted observations from 1 to 23. temp: te

Question

launch : this numbers the temperature-sorted observations from 1 to 23. temp: temperature in degrees Fahrenheit at the time of launch incident: If there was an incident with an 0-Ring, then it is coded "Yes." o_ring_probs: counts the number of O-ring partial failures experienced on the flight. How many o-ring problems (not incidents, o_ring_probs) occurred in the 23 launches? How many of these failures occurred in the first four temperature sorted launches? What is the probability of obtaining that amount or a more extreme amount of failures if the failure rate was constant?

Explanation / Answer

Ans: a) The number of o-ring problems that occured in 23 launches = 10

b) The number of failures that occured in the first four sorted launches = 6 = 60% of total

c) The failure rate here is 0.6

The probability of obtaining number of failures>=6 can be calculated as below:

10C6 (0.6^6) (0.4^4) = 210 * 0.0466*0.0256 = 0.2508

(Ans)

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