Identify if the quantity reported is a Parameter or a StatisticIn a study of Filipino Airlines flights from Japan to the Philippines, 68 flights are randomly selected and the average (mean) arrival time is 9.2 minutes late.A sample of 120 employees of a company is selected, and the average age is found to be 37 years.In a study of 320 babies born at four different hospitals in Baguio, it was found that the average weight at birth was 3.175 kgs.After interviewing all of John’s employees, a researcher found that the average time the workers report late for work is 30 minutes.In the same study cited in item 3, it was reported that 57% of the babies were girls.

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Description: Identify if the quantity reported is a Parameter or a StatisticIn a study of Filipino Airlines flights from Japan to the Philippines, 68 flights are randomly selected and the average (mean) arrival time is 9.2 minutes late.A sample of 120 employees o

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Identify if the quantity reported is a Parameter or a Statistic

1. In a study of Filipino Airlines flights from Japan to the Philippines, 68 flights are randomly selected and the average (mean) arrival time is 9.2 minutes late.
2. A sample of 120 employees of a company is selected, and the average age is found to be 37 years.
3. In a study of 320 babies born at four different hospitals in Baguio, it was found that the average weight at birth was 3.175 kgs.
4. After interviewing all of John’s employees, a researcher found that the average time the workers report late for work is 30 minutes.
5. In the same study cited in item 3, it was reported that 57% of the babies were girls.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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