6. Twenty-five randomly selected, uncomplicated appendectomies lasted for the followinglengths of time (minutes):113118121123126128| 130135136| 137138139140140142142142142143155157157158159164a) Find the number of classes.b) Generate a frequency distribution table for the above data using [110,120), [120,130), soon. Give the frequencies (f), relative frequencies (f/n), cumulative frequencies (F) andpercentage cumulative Frequencies (%F).(i)How many appendectomies lasted between 140 and 150 minutes?(ii)How many appendectomies lasted at least two and a half hours?(ii)How many appendectomies lasted less than two and a half hours?(iv)How many appendectomies lasted two and a half hours or more?(v)What percentage of the appendectomies lasted two hours or more?(vi)What percentage of the appendectomies that did not last two hours or longer?c) Generate a relative frequency histogram.d) Calculate the following:(i)the sample mean(ii)the sample variance(iii)the sample standard deviation

Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

6. Twenty-five randomly selected, uncomplicated appendectomies lasted for the following lengths of time (minutes): 113 118 121 123 126 128 130 135 136 137 138 139 140 140 142 142 | 142 142 143 155 157 157 158 159 164 a) Find the number of classes. b) Generate a frequency distribution table for the above data using [110,120), [120,130), so on. Give the frequencies (), relative frequencies (f /n), cumulative frequencies (F) and percentage cumulative Frequencies (%F). (i) How many appendectomies lasted between 140 and 150 minutes?

6. Twenty-five randomly selected, uncomplicated appendectomies lasted for the following lengths of time (minutes): 113 118 121 123 126 128 130 135 136 137 138 139 140 140 142 142 | 142 142 143 155 157 157 158 159 164 a) Find the number of classes. b) Generate a frequency distribution table for the above data using [110,120), [120,130), so on. Give the frequencies (), relative frequencies (f /n), cumulative frequencies (F) and percentage cumulative Frequencies (%F). (i) How many appendectomies lasted between 140 and 150 minutes?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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)
Here is a data set: 146 132 286 180 165 224 139 153 143 173 138 153 170 217 189 108 146 144 172 158 193 154 297 203 185 224 195 207 Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. Your classes should be labeled using interval notation. Each class contains its lower class limit, and the lower class limits should all be multiples of the class width. In that the data appears to be discrete, use a closed-interval to label each class.
2. Draw a frequency histogram and cumulative frequency polygon for the following distributions: b. The systolic blood pressure (at rest) of the 700 female staff members at Polytechnic University: Systolic Blood Pressure Frequency 101 110 68 111 120 187 121 130 131 140 209 88 141 150 76 Over 150 72
The amount of time (seconds) needed for assembly-line workers to complete welding was recorded for 38 workers. 10. 74 68 66 73 76 63 67 69 73 65 61 73 72 65 69 70 61 74 76 72 74 65 63 69 73 60 75 72 75 70 60 62 68 74 71 73 68 67 a) Construct a frequency distribution for these data using six classes.
Refer to the (incomplete) grouped frequency table data below which depicts the calorie content (in kCal) in 10grams of 45 different brands of biscuits.Calorie content(kCal)Number of brands(?)Midpoint(?)?? ??2 Cumulativefrequency0 < 8 3 4 12 48 38 < 16 8 12 96 1152 1116 < 24 A 20 360 7200 2924 < 32 11 28 B 8624 4032 < 40 5 36 180 6480 45Σ 45 - -11. The values of A and B, respectively, are:A. 18 and 340B. 16 and 308C. 18 and 380D. 18 and 308 Page 4 of 712. The values of Σ?? and Σ??2, respectively, are:A. 956 and 23504B. 965 and 23504C. 956 and 24305D. 956 and 2530413. The estimated mean, to the nearest kCal, is approximately:A. 23B. 21C. 19D. 2514. The mode (kCal) is approximately:A. 20.0B. 19.7C. 21.8D. 20.715. The standard deviation (in kCal) is approximately:A. 10.1B. 8.5C. 9.2D. 9.8
43
2. The following table shows the distribution of number of students per teacher in 80 Colleges. Determine the arithmatic mean: Students : 4 8 10 12 18 24 22 Frequency: 10 15 14 13 11 9.
Here is a data set: 262 143 161 311 307 150 234 204 174 210 128 273 228 183 184 260 128 243 209 311 190 169 197 179 190 155 188 311 Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. Each class contains its lower class limit, and the lower class limits should all be multiples of the class width. Note: the data ranges will be hand graded after the due date for this assignment. If your frequencies are marked correct, you most likely have the classes correct.
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. Describe any patterns. Number of classes: 8 Data set: Finishing times (in seconds) of 20 male participants in a 5K race 1718 1632 1571 1470 2300 1445 1249 1800 1593 1778 1960 1524 1824 1620 1306 1819 2020 2082 1580 1481 ..... Construct a frequency distribution of the data. Use the minimum data entry as the lower limit of the first class. Class Frequency 1. nothing-nothing nothing 2. nothing-nothing nothing 3. nothing-nothing nothing 4. nothing-nothing nothing 5. nothing-nothing nothing 6. nothing-nothing nothing 7. nothing-nothing nothing 8. nothing-nothing nothing Construct a frequency histogram of the data. A. 12345678048ClassFrequency A frequency…
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 36 291. Construct frequency distribution table for the above data by:a) Determine the appropriate number of classes using Sturges formula.b) Determine each class width.c) Determine appropriate class limits and class boundaries.d) Construct frequency distribution table.
The following are the grades received on an paper by 25 students. 97 97 98 40 45 77 65 65 65 68 81 93 68 71 87 85 88 76 79 78 87 81 81 83 89 a) Fill in the frequency table below using the data given. Use 10-point bins. Note: You may have rows left over. Grade Frequency Relative Frequency Cumulative Frequency Total: b) Draw a histogram based on the frequency table in part a . Don’t forget to label properly the axes, and put a title.