Inferential Statistics
Presentation
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Social Studies
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12th Grade
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Practice Problem
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Medium
Jennifer Parks
Used 77+ times
FREE Resource
6 Slides • 7 Questions
1
Inferential Statistics
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3
Multiple Choice
In order to assess student reactions to the school's COVID safety protocols, the principal sent a survey to every fifth person on the school's alphabetical list of students. He used the technique of
random sampling
random assignment
4
Multiple Choice
To put students into groups for a study on the effectiveness of watching AP Daily Videos, Ms. Parks asked each student to draw a colored slip of paper from an envelope. This was her method of:
random sampling
random assignment
5
Multiple Choice
The purpose of random sampling is to
include as many members of the population as possible in the research
obtain the largest possible sample
obtain a representative sample from which generalizations can be made
guarantee that the research sample will proportionally represent the population of interest
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After using descriptive statistics,
researchers can use inferential statistics to:
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Generalize from a study sample to the population of interest
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Assess statistical significance (the likelihood that an observed result did not occur by chance)
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In general, statistical significance results from:
a large difference between sample averages
a reliable sample: one that is representative and has low variability
10
Multiple Choice
Which of the following types of descriptive statistics shows how much variability is in a sample?
frequency
mean
mode
standard deviation
11
Multiple Choice
Which data set is more reliable?
In a study of science performance among CPS high school students, the four-year science course grades of 300 graduating LPHS seniors are recorded.
In a study of science performance among CPS high school students, the four-year science course grades of 3,000 graduating seniors from various CPS schools in different neighborhoods are recorded.
12
Multiple Choice
Which of these differences is likely to have greater statistical significance?
The average science course grades of LPHS graduating seniors is higher for females than for males. Specifically, the average course grade for females was 83%, and for males it was 70%.
The average science course grades of LPHS graduating seniors is higher for females than for males. Specifically, the average course grade for females was 83%, and for males it was 81%.
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Multiple Choice
Which data set is more reliable?
The average science test grades of LPHS graduating seniors is higher for females than for males. The data also show a large number of extreme scores (outliers) in the female data set.
The average science test grades of LPHS graduating seniors is higher for females than for males. The data also show that scores are close to the mean for both groups.
Inferential Statistics
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