Is there a difference in the mean number of units that students take at LTCC, Foothill College, and DeAnza College? The results of the survey are shown below.LTCC141218115169 Foothill151041819171613DeAnza4951214518 A) State the null and alternate hypotheses.B) Conduct the appropriate hypothesis test at the 0.05 significance level. State what you entered into the calculator and find the pvalue.C) State the conclusion in the context of the problem.

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Description: Is there a difference in the mean number of units that students take at LTCC, Foothill College, and DeAnza College? The results of the survey are shown below.LTCC141218115169 Foothill151041819171613DeAnza4951214518 A) State the null and alternate hy

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MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

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Is there a difference in the mean number of units that students take at LTCC, Foothill College, and DeAnza College? The results of the survey are shown below.

LTCC	14	12	18	11	5	16	9
Foothill	15	10	4	18	19	17	16	13
DeAnza	4	9	5	12	14	5	18

A) State the null and alternate hypotheses.

B) Conduct the appropriate hypothesis test at the 0.05 significance level. State what you entered into the calculator and find the pvalue.

C) State the conclusion in the context of the problem.

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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