Question
In: Statistics and Probability
2. Use R to conduct the chi-square and determine the p-value. (The expected proportion must sum...
2. Use R to conduct the chi-square and determine the p-value. (The expected proportion must sum up to one
Solutions
orchestra answered 1 year agoRelated Solutions
State the critical value of ?2 and determine the appropriate conclusion for a chi-square test for...
State the critical value of ?2 and determine the
appropriate conclusion for a chi-square test for
association using the given information.
a) ? = 0.025, Number of rows = 5, Number of columns = 5, ?2 =
31.1
b) ? = 0.10, Number of rows = 7, Number of columns = 6, ?2 =
40.3
Use the appropriate table to find the following chi-square value: for df = 2.
Use the appropriate table to find the following chi-square
value: for df = 2.
Use the following data to conduct a Chi-square test for each region of the company in...
Use the following data to conduct a Chi-square test for each
region of the company in the same manner you viewed in the
video:
Region
Expected
Actual
Southeast
Defined
100
98
Open
100
104
Northeast
Defined
150
188
Open
150
214
Midwest
Defined
125
120
Open
125
108
Pacific
Defined
200
205
Open
200
278
Step 3:
Write an 800–1,000-word essay, utilizing APA formatting, to
discuss the following:
Describe why hypothesis testing is important to
businesses.
Report your findings from...
Use the following data to conduct a Chi-square test for each region of the company in...
Use the following data to conduct a Chi-square test for each
region of the company in the same manner you viewed in the
video:
Region
Expected
Actual
Southeast
Defined
100
98
Open
100
104
Northeast
Defined
150
188
Open
150
214
Midwest
Defined
125
120
Open
125
108
Pacific
Defined
200
205
Open
200
278
Step 3:
Write an 800–1,000-word essay, utilizing APA formatting, to
discuss the following:
Describe why hypothesis testing is important to businesses.
Report your findings from...
Use the following data to conduct a Chi-square test for each region of the company in...
Use the following data to conduct a Chi-square test
for each region of the company in the same manner you viewed in the
video:
RegionExpected
Actual
Southeast
Defined
10098
Open
100104Northeast
Defined
150188
Open
150214Midwest
Defined
125120
Open
125108Pacific
Defined
200205
Open
200278
Step 3:
Write an 800–1,000-word essay, utilizing APA
formatting, to discuss the following:
Describe why hypothesis testing is important to
businesses.
Report your findings from each Chi-square test that
you conducted.
Based solely on the Chi-square test,...
How could you use Expected Value in your life or future profession? How might the Chi-square...
How could you use Expected Value in your life or future
profession?
How might the Chi-square test be a useful tool in your future
profession? What might be a proposed study of interest in your
future profession be that would utilize a Chi-square test (be sure
to include the categorical variables in the study)?
using the Chi-square Hypothesis Test. with .05 level of significance. What is the p value and...
using the Chi-square Hypothesis Test. with .05 level of
significance. What is the p value and the test statistic? How do
you find them?
Location
Error
Type
Midtown
Uptown
Total
Caller
Verification
15
12
27
Provided
Correct Information
17
11
28
Correct
Update
14
16
30
Other
Error Types
10
16
26
Total
56
55
111
Use the chi-square test for independence and the observed frequencies below to determine if the frequency...
Use the chi-square test for independence and the
observed frequencies below to determine if the frequency pattern of
COVID-19 cases between males and females differs between the states
of Nebraska and Wyoming (p < .05).
*Do not carry out steps 1-2 of
null hypothesis testing*
Male
Female
Nebraska
989
659
Wyoming
237
193
Use the chi-square test for goodness of fit to determine if the data shown below are...
Use the chi-square test for goodness of fit to determine if the
data shown below are consistent with an inheritance pattern of
simple dominance. Use p = 0.05 for determining
significance.
Cross: Aa x Aa
Offspring:
70 dominant phenotype
30 recessive phenotype
A. The data are consistent with a simple dominance pattern of
inheritance.
B. The data are not consistent with a simple dominance pattern
of inheritance.
Chi Square Test We will now use Excel to run an example of a chi square...
Chi Square Test
We will now use Excel to run an example of a chi square test.
Chi square test is checking the independence of two variables. Our
example will test if taking hormonal pills and being overweight are
related. We will test the independence on 200 random patients.
Thus, N=200. They will be divided first into two groups, those who
take hormonal pills and those who do not. Second, they will be
divided into three groups based on weight,...
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