What is the sample difference in means? Question 7 options: a. Lake Rick sample is non-normal, so no comparison is possible. b. 0.5125 kg c. observed p= 0.0167,reject Ho: mean(1) - mean(2) =0 at =0.05. d. +- 0.5 kg e. 0.6572 kg A researcher is studying the pickerel population in two lakes, Lake Rick and LakeMorty. Samples of fish are taken from each lake and weighed (in kilograms). Here arethe data:Lake RickLake Morty4.53.54.22.63.82.93.52.82.93.53.23.63.74.24.12.7Use your knowledge of SPSS to create a data file for these fish.

There are two independent samples which are Lake Rick and Lake Morty. We have to test whether there…

Answered: A researcher is studying the pickerel…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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What is the sample difference in means?

Question 7 options:

	a. Lake Rick sample is non-normal, so no comparison is possible.
	b. 0.5125 kg
	c. observed p= 0.0167, reject Ho: mean(1) - mean(2) =0 at =0.05.
	d. +- 0.5 kg
	e. 0.6572 kg

A researcher is studying the pickerel population in two lakes, Lake Rick and Lake
Morty. Samples of fish are taken from each lake and weighed (in kilograms). Here are
the data:
Lake Rick
Lake Morty
4.5
3.5
4.2
2.6
3.8
2.9
3.5
2.8
2.9
3.5
3.2
3.6
3.7
4.2
4.1
2.7
Use your knowledge of SPSS to create a data file for these fish.

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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