I have three errands to take care of in the Administration Building. Let x, = the time that it takes for the ith errand (i = 1, 2, 3), and let X = the total time in minutes that I spend walking to and from the building and between each errand. Suppose the x,'s are independent, and normally distributed, with the following means and standard deviations: u, = 13, o, = 4, 42 = 6, o2 = 1, lg = 9, og = 2, H4 = 13, o4 = 4. I plan to leave my office tA.M." How long should I estimate my trip will take if I want the probability of the trip taking longer than my estimate to be 0.01? (Round your answer to two decimal places.) precisely 10:00 A.M. and wish to post a note on my door that reads, "I will return by A USE SALT min

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.