The owner of an automobile repair shop studied thewaiting times for customers who arrive at the shop foran oil change. The following data with waiting times inminutes were collected over a one-month period.911 312 11 433 424 13 22 5 18 6 9 12 23 15 2 (a)Develop a frequency distribution using classes of0-4, 5-9, 10-14, 15-19, and 20-24. ClassFrequency 0-4 5-9 10-14 15-19 20-24 Total (b)Develop a relative frequency distribution using theclasses in part (a). If required, round your answers totwo decimal places. Class Relative Frequency0-45-9 10-14 15-19 20-24 Total (c) Develop acumulative frequency distribution using the classes inpart (a). Class Cumulative Frequency0-45-910-14 15-19 20-24 (d) Develop acumulative relative frequency distribution using theclasses in part (a). If required, round your answers totwo decimal places. Class Cumulative RelativeFrequency 0-4 5-9 10-14 15-19 20-24 (e) Whatproportion of customers need an oil change who wait 9minutes or less? %

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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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Back up your data: In a survey backed up their computer's hard drive. The following frequency distribution presents the results. mmissioned by an electronics company, U.S. computer users wereasked how often they Response More than once per month Frequency 844 Once every 1-3 months 521 Once every 4-6 months 229 Once every 7-11 months Once per year or less Never
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Construct a frequency distribution of the data. Use the minimurn data entry as the lower limit of the first class. Number of classes: 8 Class Frequency Data set: Reaction times (in milliseconds) of 30 adult females to an auditory stimulus 2 00 3. 0 4.-0 428 292 384 336 514 423 385 427 370 313 440 389 352 472 385 412 442 428 5. 300 453 307 310 326 411 6. 385 318 357 509 416 7.0 8. N 450 7. - Construct a frequency histogram of the data.
Q1: Complete the following frequency table: Production In liters Number Farmer ? center Category ? Repetition Cumulative ?. ? 149 -100 5 199 -150 5 249 -200 8 299 -250 4 349 -300 2 Total 24 Calculate the mean, median and mode, then calculate the coefficient of variation. Examples data by the recurring curve method. Question2: The question measures the mental skills that the student acquired (c1) If you know that it is the lengths of a group of students, it follows a normal distribution with an arithmetic mean of 170 cm and a deflection 5 cm standard, one of the guys was randomly selected (X) Find from the following using the Z tables: P (X< 174) P (X≥ 185) P (179 ≤ X ≤ 182) Q3: This question measures the applied skills of the student (b1) Explain the relationship between the two variables. Find the equation of the yield…
Below is a frequency distribution for the estimated miles per gallon (MPG) for 298 different models Japanese-made cars. Japanese-Made Cars Frequency 14 42 100 92 24 18 2 2 2 2 MPG 10 - 13 14 - 17 18 - 21 22 - 25 26 - 29 30-33 34 - 37 38 - 41 42-45 46 - 49 (a) Identify the following class midpoints (enter as a comma-separated list) class boundaries (enter as a comma-separated list)
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Resting Pulse: earlier this semester we determined our resting pulse. Seventy-nine individuals participated in this data collection. The mean heart rate for all individuals was 65.34 beats per minute. A random sample of 30 heart rates having a mean of 64.97 beats per minute is presented here. Build a frequency table of these data containing six (6) classes with the lower llimit of the second class at 54 beats per minute. Build a chart appropriate for the presentation of these data. Data: 49, 51, 53, 56, 57, 58, 60 , 60, 62, 62, 62, 64, 64 65, 65 , 65, 67, 68, 68, 68, 69, 70 , 70, 72, 72, 72, 72, 75, 75 , 78,
The owner of an automobile repair shop studied the waiting times for customers who arrive at the shop for an oil change. The following data with waiting times in minutes were collected over a one-month period. 3 4 10 214 5 3 2310 11 9 166 14 6 92 22 16 7(a) Develop a frequency distribution using classes of 0-4, 5-9, 10-14, 15-19, and 20-24.Class Frequency 0-4 5-9 10-14 15-19 20-24 Total (b) Develop a relative frequency distribution using the classes in part (a). If required, round your answers to two decimal places. Class Relative Frequency 0-4 5-9 10-14 15-19 20-24 Total (c) Develop a cumulative frequency distribution using the classes in part (a). Class Cumulative Frequency 0-4 5-9 10-14 15-19 20-24
The data below shows time taken (in minutes) for 50 students to travel to their school from home.Time (minutes)23 16 16 17 1218 17 32 11 2711 16 22 18 2021 15 21 17 3432 14 18 21 2922 12 30 27 1627 20 21 14 2817 17 17 20 2613 20 27 26 1718 21 21 36 29 2. Draw a histogram based on your frequency distribution table.3. Give your comment about the distribution of the data based on your histogram.
A professor had students keep track of their social interactions for a week. The number of social interactions over the week is shown in the following grouped frequency distribution. Identify the lower limit of the tenth class Number of Social Interactions Frequency 45-49 9 50-54 13 55-59 17 60-64 20 65-69 18 70-74 10 75-79 3 80-84 8 85-89 0 90-94 2
Consider the following frequency distribution.Class Frequency10–19 1020–29 1430–39 1740–49 750–59 2Construct a cumulative frequency distribution.
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The presscott national bank has six tellers available to serve customers

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