Finish Times (To the Nearest Hour) for 57 Dogsled Teams

question 8

Multiple Choice

Finish times (to the nearest hour) for 57 dogsled teams are shown below. Use five classes. Categorize the basic distribution shape as uniform or rectangular, mound-shaped symmetric, bimodal, skewed left, or skewed right. $$\begin{array} { l l l l l l l l l l l l } 261 & 271 & 236 & 244 & 279 & 296 & 284 & 299 & 288 & 288 & 247 & 256 \\338 & 360 & 341 & 333 & 261 & 266 & 287 & 296 & 313 & 311 & 307 & 307 \\299 & 303 & 277 & 283 & 304 & 305 & 288 & 290 & 288 & 289 & 297 & 299 \\332 & 330 & 309 & 328 & 307 & 328 & 285 & 291 & 295 & 298 & 306 & 315 \\310 & 318 & 318 & 320 & 333 & 321 & 323 & 324 & 327 & & &\end{array}$$

• A)approximately uniform or rectangular
• B)approximately mound-shaped symmetric
• C)approximately skewed left
• D)approximately skewed right
• E)approximately bimodal

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Definitions:

Confidence Interval

A range of values, derived from sample data, that is likely to contain the value of an unknown population parameter with a specified level of confidence.

Confidence Interval

A variety of values, sourced from sample statistics, with a high likelihood of containing an undetermined population parameter's value.

Sample Size

The number of observations or elements selected from a population to be analyzed.

Population Mean

The average of a set of values in an entire population, representing the central tendency of the population.