An article on pedaling techniques for elite endurance cyclists reported on single-leg power at a high workload. 246 195 164 182 181 170 173 207 215 188 212 180 194 198 USE SALT (a) Calculate the sample mean x and median 7. (Round your mean to four decimal places.) x= Interpret the sample mean and median. O The median is larger than the mean, but they are still fairly close together. O The mean is larger than the median, but they are still fairly close together. O The median is much larger than the mean. O The mean is much larger than the median. (b) Suppose that the first observation had been 255 rather than 246. Calculate the sample mean and median. (Round your mean to four decimal places.) x= 7= How would the mean and median change? O The mean increased, and the median stayed the same. O Both the mean and median decreased. O The mean decreased, and the median stayed the same. O Both the mean and median stayed the same. (c) Calculate a trimmed mean by eliminating the smallest and largest sample observations. (Enter your answer to four decimal places.) What is the corresponding trimming percentage? (Round your answer to two decimal places.) % (d) The article also reported values of single-leg power for a low workload. The sample mean for n = 13 observations was x= 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 155. What is the value of x for the entire sample? (Round your answer to the nearest whole number.)
An article on pedaling techniques for elite endurance cyclists reported on single-leg power at a high workload. 246 195 164 182 181 170 173 207 215 188 212 180 194 198 USE SALT (a) Calculate the sample mean x and median 7. (Round your mean to four decimal places.) x= Interpret the sample mean and median. O The median is larger than the mean, but they are still fairly close together. O The mean is larger than the median, but they are still fairly close together. O The median is much larger than the mean. O The mean is much larger than the median. (b) Suppose that the first observation had been 255 rather than 246. Calculate the sample mean and median. (Round your mean to four decimal places.) x= 7= How would the mean and median change? O The mean increased, and the median stayed the same. O Both the mean and median decreased. O The mean decreased, and the median stayed the same. O Both the mean and median stayed the same. (c) Calculate a trimmed mean by eliminating the smallest and largest sample observations. (Enter your answer to four decimal places.) What is the corresponding trimming percentage? (Round your answer to two decimal places.) % (d) The article also reported values of single-leg power for a low workload. The sample mean for n = 13 observations was x= 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 155. What is the value of x for the entire sample? (Round your answer to the nearest whole number.)
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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Transcribed Image Text:An article on pedaling techniques for elite endurance cyclists reported on single-leg power at a high workload.
246 195 164 182 181 170 173
207 215 188 212 180 194 198
USE SALT
(a) Calculate the sample mean x and median X. (Round your mean to four decimal places.)
x =
X =
Interpret the sample mean and median.
O The median is larger than the mean, but they are still fairly close together.
O The mean is larger than the median, but they are still fairly close together.
O The median is much larger than the mean.
O The mean is much larger than the median.
(b) Suppose that the first observation had been 255 rather than 246. Calculate the sample mean and median. (Round your mean to four decimal places.)
x =
X
How would the mean and median change?
O The mean increased, and the median stayed the same.
O Both the mean and median decreased.
O The mean decreased, and the median stayed the same.
O Both the mean and median stayed the same.
(c) Calculate a trimmed mean by eliminating the smallest and largest sample observations. (Enter your answer to four decimal places.)
What is the corresponding trimming percentage? (Round your answer to two decimal places.)
%
(d) The article also reported values of single-leg power for a low workload. The sample mean for n = 13 observations was X = 119.8 (actually 119.7692), and the 14th observation, somewhat of an outlier, was 155. What is the value of x for the entire sample?
(Round your answer to the nearest whole number.)
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