Veronica_Perez_Act_I_ A_Late_Arrival_Workbook

Finish times (to the nearest hour) for 57 dogsled teams are shown below. Make a dotplot for the data.  261 271 236 244 279 296 284 299 288 288 247 256 308 360 341 333 261 266 287 296 313 311 307 307 299 303 277 283 304 305 288 290 288 289 297 299 332 330 309 328 307 328 285 291 295 298 306 315 310 318 318 318 333 321 323 324 327

Enter Data Set 1, 59, 60, 60, 60, 60, 61, 62, 62, 62, 62, 63, 64, 64, 64, 64, 65, 65, 65, 66, 67, 67, 67, 67, 68, 68, 69, 69, 70, 70, 70, 70, 71, 72, 73 ×

Evaluate a. 7P₁

IQR for data set  41, 49, 55, 82, 84, 85, 93, 103, 113, 121, 126, 127, 136, 136, 155, 166, 169, 178, 193, 204, 445

The scores of a test for an engineering class of 30 students are shown here. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) Scores: 81, 54, 55, 56, 96, 86, 98, 61, 90, 52, 92, 76, 66, 84, 79, 70, 71, 88, 62, 74, 53, 65, 55, 78, 79, 58, 60, 72, 51,80 (a) Determine the frequency (f), midpoint (x), and xf for each range and fill in the table below. (First, organize the scores into the following ranges: 50-59, 60-69, 70-79, 80-89, and 90-99.) (b) Using the following equation, determine the mean value (x) and fill in the table below. Σ(XA) n X = (c) Calculate (x − x) for each range and fill in the table below. (d) Calculate (x - x)²f for each range and fill in the table below. Range Frequency f Midpoint x 50-59 60-69 70-79 80-89 90-99 S = Enter a number. S = (e) Using the following equation, compute the standard deviation of the class scores. Σ(x-x) ²f n - 1 Σ(x-x) ²4 n - 1 = xf 29 X X - X (x - x)²f

How many anagrams are there of the word anagram?

A store manager kept track of the number of newspapers sold each week over an 8-week period. The results were as follows: 0, 88, 71, 201, 113, 269, 248, 250. Find the 5 number summary for the data. Is the data discrete or continious?

The table summarizes results from pedestrian deaths that were caused by automobile accidents. Pedestrian Deaths Driver Pedestrian Intoxicated? Intoxicated? Yes No Yes

x1:   New England Crime Rate 3.3, 3.7, 4.0, 4.1, 3.3, 4.1, 1.8, 4.8, 1.9, 3.1 x2:   Rocky Mountain Crime Rate 3.5, 4.3, 4.7, 5.3, 3.3, 4.8, 3.5, 2.4, 3.1, 3.5, 5.2,2.8 Assume that the crime rate distribution is approximately normal in both regions. Use a calculator to calculate x1, s1, x2, and s2. (Round your answers to four decimal places.) x1: s1: x2: s2: What is the value of the sample test statistic? Compute the corresponding z or t-value as appropriate. (Test the difference ?1 − ?2. Do not use rounded values. Round your answer to three decimal places.) Find a 98% confidence interval for  ?1 − ?2.  (Round your answers to two decimal places.) lower limit: _________ upper limit: _________

Evaluate