What is the Mean difference (d)? how about the SE of difference? Recall DataMenWomen758585926778778083889490898886N = 5N = 10 Noting that women seem more interested in emotions than men, astudent in Experimental Psychology in UP Clark wondered if womenrecall emotional events better than men. She decides to gather somedata on the matter. An experiment is conducted in which 5 randomlyselected men, and 12 randomly selected women are shown 20 highlyemotional photographs and then asked to recall them 1 week after theshowing. The following recall data are obtained. Scores are percentcorrect. Distribution of participants between groups were not balancedsince women are greater in number than men in the school.

Excel Procedure: Enter Men and Women in Excel sheet>Data>Data Analysis>Select ‘t-Test:…

Answered: Recall Data Men Women 75 85

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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What is the Mean difference (d)? how about the SE of difference?

Recall Data
Men
Women
75
85
85
92
67
78
77
80
83
88
94
90
89
88
86
N = 5
N = 10

Noting that women seem more interested in emotions than men, a
student in Experimental Psychology in UP Clark wondered if women
recall emotional events better than men. She decides to gather some
data on the matter. An experiment is conducted in which 5 randomly
selected men, and 12 randomly selected women are shown 20 highly
emotional photographs and then asked to recall them 1 week after the
showing. The following recall data are obtained. Scores are percent
correct. Distribution of participants between groups were not balanced
since women are greater in number than men in the school.

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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