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Name: For each problem, write which test you used in your calculator, draw t
Uploaded: 2024-03-20T07:07:12.000Z
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Description: For each problem, write which test you used in your calculator, draw the graph, calculate p-value, and write your conclusion in a complete sentence. Types of Tests: 2 sample mean t, 2 sample mean z, 2 sample proportion z, difference between means t.

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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For each problem, write which test you used in your calculator, draw the graph, calculate p-value, and write your conclusion in a complete sentence. Types of Tests: 2 sample mean t, 2 sample mean z, 2 sample proportion z, difference between means t. A SRS of 25 daisies in Arroyo Grande shows that the average number of petals on the flower is 13 with a population standard deviation of 2.5. Assume that the Arroyo Grande data is normally distributed. A SRS of 37 daisies in Atascadero shows that the average number of petals on the flower is 17 with a population standard deviation of 1.7. Determine if there is enough evidence to show that the average number of petals on daisies in Atascadero is the same as that of Arroyo Grande.

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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