Estimate the average time using the sample mean
(a) Using exponential distribution estimate the average time using the sample mean.
Times:
(b) Using the previous data perform a hypothesis test to find if the time is different 2 days with type 1 error or 0.05.
(There might not be an answer)
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A Normally distributed quality characteristic is monitored throughuse of an x bar and R chart. These charts have the followingparameters n=4
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If I roll a fair die 1000 times find the probability the number of threes is strictly between 125 and 165 using excel commands.
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