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PSYC355 quiz 8 LUOA answered
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Fall 2021 PSYC 355 quiz 8 Fall 2021 PSYC 355- B08 LUO Quiz: Chi-Square Tests and Module 8 Article • Question 1 What values are specified by the null hypothesis for a chi-square test? 2 out of 2 points • Question 2 2 out of 2 points In the observed frequencies for a chi-square test...

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  • May 21, 2022
  • 5
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers

Subjects

  • psyc355
  • luoa
  • 2021
  • mcqs
  • lu

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  • Liberty University Online Academy
  • PSYC 355 (PSYC355)
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Fall 2021 PSYC 355 quiz 8
202140 Fall 2021 PSYC 355-
B08 LUO
Quiz: Chi-Square Tests and Module 8 Article
• Question 1
2 out of 2 points
What values are specified by the null hypothesis for a chi-square test?

Selected
b.
Answer:
Proportions for a population

• Question 2
2 out of 2 points
In the observed frequencies for a chi-square test for independence, how often is each
participant counted?
Selected
Answer: d.
Just once

• Question 3
2 out of 2 points
A sample of n = 100 people is classified into four categories. If the results are evaluated
with a chi-square test for goodness of fit, what is the df value for the chi-square statistic?
Selected b.
Answer: 3
• Question 4
2 out of 2 points
A researcher is using a chi-square test to determine whether people have any preferences
among three brands of televisions. The null hypothesis for this test would state that .
Selected
Answer: d.
one-third of the population prefers each brand

• Question 5
0 out of 2 points
Which of the following accurately describes the observed frequencies for a chi-square test?

, Selected c.
Answer:
They can contain fractions or decimal values.

• Question 6
2 out of 2 points
What values are specified by the null hypothesis for the chi-square test for goodness of fit?
Selected
Answer: a.
Proportions for the entire population

• Question 7
2 out of 2 points
A chi-square test for goodness of fit has df = 2. How many categories were used to classify
the individuals in the sample?
Selected d.
Answer: 3
• Question 8
2 out of 2 points
A chi-square test for independence is being used to evaluate the relationship between two
variables. If the test has df = 1, what can you conclude about the two variables?
Selected
Answer: d.
Both variables consist of 2 categories.

• Question 9

Which of the following best describes the possible values for a chi-square 2 out of 2 points
statistic?

Selected
Answer:
b.
Chi-square is always positive but can contain fractions or decimal values.

• Question 10

0 out of 2 points
The phi-coefficient is used to evaluate effect size for the chi-square test for independence,
provided the test has df > 1.
Selected Tru
Answer: e


• Question 11

2 out of 2 points
The chi-square test for goodness of fit evaluates the distribution for one variable, and the test
for independence evaluates the relationship between two variables.
Selected Tru
Answer:

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