This paper circulates around the core theme of Based on what you have been told about IQ scores in the beginning of the problem, does this sample’s distribution seem to reflect the distribution of IQ scores in the general population? Why or why not? together with its essential aspects. It has been reviewed and purchased by the majority of students thus, this paper is rated 4.8 out of 5 points by the students. In addition to this, the price of this paper commences from £ 99. To get this paper written from the scratch, order this assignment now. 100% confidential, 100% plagiarism-free.
The following data represent IQ scores of a sample of
30 high school students. In the general population, IQ scores have a mean of
100 and a standard deviation of 15.
IQ Scores
|
123
119
104
145
108
100
115
105
60
122
105
87
98
124
80
|
93
89
123
118
104
112
96
85
98
105
91
113
82
124
90
|
a.
Generate descriptive statistics and a histogram for
this variable. Based on the data and graph, choose
1 measure of central tendency and 1 measure of dispersion (variability) that
best describes the data set. Justify why you chose these measures in a statement beneath the output.
b.
In your data set, standardize the IQ scores by
transforming them into z-scores under a new variable “ZIQ.” Using your data set
as a reference, what z-score corresponds to a raw IQ score of 115? To a raw IQ
score of 60? To a raw IQ score of 104?
c.
Based on what you have been told about IQ scores in the
beginning of the problem, does this sample’s distribution seem to reflect the
distribution of IQ scores in the general population? Why or why not?