Let X1, . . . , Xn be a random sample from a pdf that is symmetric about . An estimator for that has been found to perform well for a variety of underlying distributions is the Hodges–Lehmann estimator. To define it, first compute for
Compute the value of this estimate using the data of Exercise 44 of Chapter 1. [Hint: Construct a square table with the xi’s listed on the left margin and on top. Then compute averages on and above the diagonal.]
Reference exercise 44 in chapter 1
The article “Oxygen Consumption During Fire Suppression: Error of Heart Rate Estimation” (Ergonomics, 1991: 1469–1474) reported the following data on oxygen consumption (mL/kg/min) for a sample of ten firefighters performing a fire-suppression simulation:
Compute the following:
a. The sample range
b. The sample variance s2 from the definition (i.e., by first computing deviations, then squaring them, etc.)
c. The sample standard deviation
d. s2 using the shortcut method
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