Question

I've been stuck on this problem for a minute, anyone able to show me what to do?

Use the following duration times (seconds) of 24 eruptions of the Old Faithful geyser in Yellowstone National
Park. The duration times are sorted from lowest to highest.
110 120 178 213 234 234 235 237 240 243 245 245
250 250 251 252 254 255 255 259 260 266 269 273
Describe how to calculate the limits to determine outliers for this data set? Identify any outliers.

Answer 1

1. 01= 234, 03= 255 (since the data is

already sorted)

2. I0R = 255 - 234= 21

3. Lower limit = 234- 1.5 * 21= 203.5

Upper limit = 255+ 1.5 * 21= 285.5

4. Outliers: 110, 120, 178 (below the

lower limit), and 273 (above the upper

limit)