Answered: Suppose the mean of the pilot sample…

Name: Mathew is interested in the relationship between a learning game Power
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Mathew is interested in the relationship between a learning game Power Physics and Creativity. He has developed an instrument for testing Creativity. After some initial pilot tests, he and Russell work out that the hypothesized mean creativity score

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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Mathew is interested in the relationship between a learning game Power Physics and Creativity. He has developed an instrument for testing Creativity. After some initial pilot tests, he and Russell work out that the hypothesized mean creativity score should be 7 and the standard deviation for creativity scores should be around ? = 2.3.

Suppose the mean of the pilot sample follows a normal distribution with a mean of 7 (from the null hypothesis). What is the probability of observing a mean posttest score as big or bigger than the one that Mathew saw in the pilot test (i.e., what is the p-value)?

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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