Could the number of courses a college student is enrolled in be related to their employment status? At a local college, a simple random sample of 150 students was selected. Data was collected on each student onhow many courses they were currently enrolled in and whether they held a job. The data was then presented in the frequency table:Number of Courses Employment Status TotalJobNo JobFour193049Three272552Two371249Total8367150Part A: What proportion of students in the sample have a job and are enrolled in at least three courses? Also, what proportion of students in the sample do not have a job and are enrolled in at least three courses?Part B: Explain the association between the number of courses enrolled and employment status for the 150 students. Use the data presented in the table and proportion calculations to justify your answer.Part C: Perform a chi-square test for the hypotheses.Ho: The number of courses enrolled by students at the local college and their employment status have no association.Ha: The number of courses enrolled by students at the local college and their employment status have an association.What can you conclude based on the p-value?

**Part A: Proportion Calculation** To find the proportion of students with a job and enrolled in at…

Answered: Could the number of courses a college…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Construct a frequency distribution table for the following data: The number of persons living in each household in a certain compound in Karuhatan: 5, 9, 7, 3, 7, 5, 6, 3, 4, 6 8, 7, 5, 3, 9, 4, 8, 5, 9, 3 3, 7, 3, 6, 3
Finish times (to the nearest hour) for 59 dogsled teams are shown below. Draw a relative-frequency histogram. Use five classes. 261 274 236 244 280 296 284 296 288 288 250 256 338 360 341 333 261 267 287 296 313 311 307 307 299 303 277 283 304 305 286 290 286 287 297 299 332 330 309 326 307 326 285 291 295 298 306 315 310 318 318 320 333 321 323 324 327 302 319 The frequency table for the above data is given below. Class Limits Boundaries Midpoint Freq. Relative Freq. Cumulative Freq. 236 – 260 235.5 – 260.5 248 4 0.07 4 261 – 285 260.5 – 285.5 273 9 0.15 13 286 – 310 285.5 – 310.5 298 26 0.44 39 311 – 335 310.5 – 335.5 323 17 0.29 56 336 – 360 335.5 – 360.5 348 3 0.05 59
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Ten novels were randomly selected, and the number of pages were recorded as follows: 415 398 402 399 400 405 395 401 412 407 Calculate the median of the data set. Ten novels were randomly selected, and the number of pages were recorded as follows: 415 398 402 399 400 405 395 401 412 407 Calculate the median of the data set. 403.4 407 399 401.5 395
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A researcher would like to know whether there is a consistent, predictable relationship between ACT scores and GPA for high school students. A sample of 100 students is obtained from students who took the ACT in their Junior year. Based on the test results and gpa scores, students are classified as high or low for ACT and for GPA. The results are summarized in the following frequency distribution: ACT Score High GPA Low GPA High 39 15 Low 21 25 Based on the data, is there a significant relationship between ACT scores and GPA (a = .05). Compute the appropriate measure of association.
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