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Calculate the sample mean x and median

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Reference no: EM132852650

An article on pedaling techniques for elite endurance cyclists reported on single-leg power at a high workload.

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(a) Calculate the sample mean x and median . (Round your mean to four decimal places.)x= =

Interpret the sample mean and median.
The mean is much larger than the median.
The mean is larger than the median, but they are still fairly close together.
The median is much larger than the mean.
The median is larger than the mean, but they are still fairly close together.

(b) Suppose that the first observation had been 257 rather than 248. Calculate the sample mean and median. (Round your mean to four decimal places.)x= =

How would the mean and median change?
The mean increased, and the median stayed the same.
Both the mean and median stayed the same.
The mean decreased, and the median stayed the same.
Both the mean and median decreased.

(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 161. What is the value of x for the entire sample? (Round your answer to the nearest whole number.)

Reference no: EM132852650

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