For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 31 beats per minute, the mean of the listed pulse rates is x =77.0 beats per minute, and their standard deviation is s = 16.8 beats per minute. a. What is the difference between the pulse rate of 31 beats per minute and the mean pulse rate of the females? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the pulse rate of 31 beats per minutes to a z score. d. If we consider pulse rates that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 31 beats per minute significant? a. The difference is beats per minute. (Type an integer or a decimal. Do not round.) b. The difference is standard deviations. (Round to two decimal places as needed.) c. The z score is z = (Round to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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7.

Platelet Counts
318
225
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285
235
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229
388
216
311
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312
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384
229
232
219
372
271
502
187
263
348
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328
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273
189
229
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177
333
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262
246
187
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390
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298
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185
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294
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169
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Transcribed Image Text:Platelet Counts 318 225 254 297 374 260 285 235 231 264 229 388 216 311 241 250 312 236 384 229 232 219 372 271 502 187 263 348 242 248 328 288 273 189 229 279 244 177 333 250 262 246 187 330 329 390 184 298 194 185 203 232 294 197 229 230 176 214 289 331 223 240 209 169 216 226 335 262 263 239 205 257 274 184 281 255 247 232
For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 31 beats per minute, the mean of the listed pulse rates is x = 77.0 beats per minute, and their
standard deviation is s = 16.8 beats per minute.
a. What is the difference between the pulse rate of 31 beats per minute and the mean pulse rate of the females?
b. How many standard deviations is that [the difference found in part (a)]?
c. Convert the pulse rate of 31 beats per minutes to a z score.
d. If we consider pulse rates that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 31 beats per minute significant?
...
a. The difference is
beats per minute.
(Type an integer or a decimal. Do not round.)
b. The difference is
standard deviations.
(Round to two decimal places as needed.)
c. The z score is z =
(Round to two decimal places as needed.)
d. The lowest pulse rate is
Transcribed Image Text:For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 31 beats per minute, the mean of the listed pulse rates is x = 77.0 beats per minute, and their standard deviation is s = 16.8 beats per minute. a. What is the difference between the pulse rate of 31 beats per minute and the mean pulse rate of the females? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the pulse rate of 31 beats per minutes to a z score. d. If we consider pulse rates that convert to z scores between - 2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 31 beats per minute significant? ... a. The difference is beats per minute. (Type an integer or a decimal. Do not round.) b. The difference is standard deviations. (Round to two decimal places as needed.) c. The z score is z = (Round to two decimal places as needed.) d. The lowest pulse rate is
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