Calculating Central Tendency and Variability1. Dr. Gomez hypothesizes that his students are not spending enough time on homework. Heasks his students to keep track of the number of hours spent on homework and to report thesehours the next day. Listed below are the students' hours spent on homework: Using the datapresented below, provide N, mean, median, and the mode.0.25,0.5,0.5, 0.75,0.75,0.75, 1, 1, 1,1, 1, 1.25, 1.25, 1.25, 1.5, 1.5, 2, 2

Answered: Image /qna-images/answer/3aee0eb4-93da-4064-9cce-a8435814b0b2.jpg

Answered: 1. Dr. Gomez hypothesizes that his…

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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Identify the mean, median and mode based from the data below.
Q2. The 30% trimmed mean of the following data (120, 150, 170, 177, 178, 193, 198, 250, :450, 955} is 186.5 O 182.5 O 188.3 O 183.5 O 184.5 O 185.5 O
Ims.uop.edu.jo/moodle Question 3 Much of the money in private colleges and universities is invested in a fund called an endowment. A recent survey of eight private colleges in the United States revealed the following endowments (in millions Not yet answered Marked out of 2.00 of dollars): 88, 55, 249, 495, 114, 189, 98 and 220. What value will be Flag question used as the point estimate for the mean endowment of all private colleges in the United States? Select one: O 180.21 O 188.5 O 200.5 O151.115
The table below shows the overtime hours of the employees during a week. Overtime hours 0 1 2 3 4 5 Number of employees 3 8 6 4 2 2 Find the mean, median and mode of the observations.
2. Given the following observations from a sample, calculate the mean, the median, and the mode. 4 0 -6 1 -3 -4
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. a. Find the mean, median, and mode of this data. b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year. a. mean= 12,700; median= 13,156; no mode; the mean is the best choice because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628; the median is the best choice because it is not skewed by the high outlier. c. mean= 13,156; median= 12,700; no mode; the mean is the best choice because it is representative of the entire data set. d. mean= 13,156; median= 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
The following refer to the following data set: 69.4 63.3 68.4 56.9 81.4 81.4 40.6 79.8 56 81.4 What is the arithmetic mean of this data set? mean = What is the median of this data set? median = What is the mode of this data set? mode =
Here are the weights (in pounds) of 20 teens on an experimental food diet. 174, 142, 131, 145, 175, 150, 176, 151, 110, 162, 133, 163, 135, 178, 178, 154, 166, 146, 156, 167 What is the mean of the data?
Cris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city. Being an experienced businessperson, Cris provides incentives for the four salespeople operating the food carts. This year, she plans to offer monetary bonuses to her salespeople based on their individual mean daily sales. Below is a chart giving a summary of the information that Cris has to work with. (A "sample" is a collection of daily sales figures, in dollars, from this past year for a particular salesperson.) Groups Sample size Sample mean Sample variance Salesperson 1 143 204.8 2382.8 Salesperson 2 97 209.9 2501.3 Salesperson 3 53 218.3 2461.6 Salesperson 4 95 205.8 2373.9
Measures of Central Tendency, Dispersion, and Location
A sample of students in a university café was asked the following questions. Identify the type of data for each question. c. Do you have children under the age of 10 living in your house?d. Indicate your level of satisfaction with the food quality (very satisfied; moderately satisfied; neutral; moderately dissatisfied; very dissatisfied).
4. In an effort to estimate the size of elk herds wintering in Rocky Mountain National Park, the rangers used a small airplane to spot count groups of elk in the park. They found 15 groups of elk and recorded the size of each group as: 21 15 19 16 18 17 17 20 25 7 7 16 10 16 18 12 Compute the mean, the median and the mode of the data.

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