### Solution Found!

# The article “Oxygen Consumption During Fire Suppression:

**Chapter 1, Problem 44E**

(choose chapter or problem)

**Get Unlimited Answers! Check out our subscriptions**

**QUESTION:**

Problem 44E

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

###
Not The Solution You Need? Search for *Your* Answer Here:

### Questions & Answers

**QUESTION:**

Problem 44E

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

**ANSWER:**

Solution Step 1 of 4 a) We have to compute the sample range The given data is 29.5, 49.3, 30.6, 28.2, 28.0, 26.3, 33.9, 29.4, 23.5, 31.6 Range = Largest value - smallest value = 49.3 - 23.5 = 25.8 Hence Range is 25.8