Which one of the following statements is false? The median rating for Aggressiveness is higher for the Tearless image than for the Tearful image.The standard deviations for both groups are similar.At least one quarter of the respondents in each group rated the dog’s aggressiveness as 0.The distribution of Aggressiveness is positively (right) skewed for both the Tearful and the Tearless image.No one who saw the Tearful dog rated its aggressiveness as 8 or 9. A study aimed to explore the influence of tears on perceived aggressiveness by using pictures of animal faceswith digitally added tears. 403 participants, recruited from different social networks and academic institutions, weresent an online survey that included a photo of a dog. The dog photo was randomly selected to either be tearlessor tearful.Picó, A., & Gadea, M. (2021). When animals cry: The effect of adding tears to animal expressions on humanjudgment. PLOS ONE, 16(5), e0251083. https://doi.org/10.1371/journal.pone.0251083Figure 1: The tearless dog (left) and tearful dog (right).One question in the survey asked:Rate how aggressive you find the dog on the 10-point scale below, where 0 indicates the complete absence ofaggressiveness, and 10 the highest degree of aggressiveness.Plots of Aggressiveness by Photo are shown in Figure 2.PhotoTearfulTearless06AggressivenessO8OO10 Figure 2: Aggressiveness by PhotoQuestions 2 and 3 refer to the following additional information.A two-sided randomisation test was performed on the data with hypotheses:Ho Tearless - Tearful = 0H1 Tearless - Tearful #0VIT output of the data and the re-randomisation distribution is shown below in Figure 3.Data62Re-Randomised DataII-50.59Re-Randomisation Distribution-1Figure 3: VIT output from the randomisation test.2/1000 = 0.0020.5999TearfulTearless10TearfulTearless10

Introduction: It is required to identify the false statement.

Answered: Which one of the following statements…

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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Question

Which one of the following statements is false?

The median rating for Aggressiveness is higher for the Tearless image than for the Tearful image.
The standard deviations for both groups are similar.
At least one quarter of the respondents in each group rated the dog’s aggressiveness as 0.
The distribution of Aggressiveness is positively (right) skewed for both the Tearful and the Tearless image.
No one who saw the Tearful dog rated its aggressiveness as 8 or 9.

A study aimed to explore the influence of tears on perceived aggressiveness by using pictures of animal faces
with digitally added tears. 403 participants, recruited from different social networks and academic institutions, were
sent an online survey that included a photo of a dog. The dog photo was randomly selected to either be tearless
or tearful.
Picó, A., & Gadea, M. (2021). When animals cry: The effect of adding tears to animal expressions on human
judgment. PLOS ONE, 16(5), e0251083. https://doi.org/10.1371/journal.pone.0251083
Figure 1: The tearless dog (left) and tearful dog (right).
One question in the survey asked:
Rate how aggressive you find the dog on the 10-point scale below, where 0 indicates the complete absence of
aggressiveness, and 10 the highest degree of aggressiveness.
Plots of Aggressiveness by Photo are shown in Figure 2.
Photo
Tearful
Tearless
0
6
Aggressiveness
O
8
O
O
10

Figure 2: Aggressiveness by Photo
Questions 2 and 3 refer to the following additional information.
A two-sided randomisation test was performed on the data with hypotheses:
Ho Tearless - Tearful = 0
H1 Tearless - Tearful #0
VIT output of the data and the re-randomisation distribution is shown below in Figure 3.
Data
6
2
Re-Randomised Data
I
I
-5
0.59
Re-Randomisation Distribution
-1
Figure 3: VIT output from the randomisation test.
2/1000 = 0.002
0.59
9
9
Tearful
Tearless
10
Tearful
Tearless
10

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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