Checking my statistics answers with R codes
User Generated
YRTNY_3818_1622235589
Mathematics
University of New Hampshire
Description
I already finished my project, you only need to check and revise the answers you think is correct.
Check 'mine' document
text book is https://julianfaraway.github.io/faraway/LMR/
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.
This question has not been answered.
Create a free account to get help with this and any other question!
24/7 Homework Help
Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!
Most Popular Content
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
examine statistical significance and meaningfulness based on sample statements
I have attached a copy of four different scenarios you have to pick two and follow the prompts below I have also attached ...
examine statistical significance and meaningfulness based on sample statements
I have attached a copy of four different scenarios you have to pick two and follow the prompts below I have also attached sources and references that need to be in the textCritically evaluate the two scenarios you selected based upon the following points:
Critically evaluate the sample size.
Critically evaluate the statements for meaningfulness.
Critically evaluate the statements for statistical significance.
Based on your evaluation, provide an explanation of the implications for social change.
Use proper APA format and citations, and referencing.http://rpsychologist.com/index.htmlhttp://www.amstat.org/asa/files/pdfs/P-ValueStatem...
Abraham Lincoln University Data Set Schools a Sav Questions
Complete the following end of chapter exercises for Chapter 3.
Submit your response in an MS Word document or Pdf after i ...
Abraham Lincoln University Data Set Schools a Sav Questions
Complete the following end of chapter exercises for Chapter 3.
Submit your response in an MS Word document or Pdf after inserting the results
from SPSS Output into your document. This exercise utilizes the data set
schools-a.sav, which can be downloaded from chapter data sources referenced
above.1- You
are interested in investigating if being above or below the median income (medloinc)
impacts ACT means (act94) for schools. Complete the necessary steps to
examine univariate grouped data in order to respond to the questions below.
Although deletions and/or transformations may be implied from your examination,
all steps will examine original variables.a. How
many participants have missing values for medloinc and act94?b. Is
there a severe split in frequencies between groups?c. What
are the cutoff values for outliers in each group?d. Which
outlying cases should be deleted for each group?e. Analyzing
histograms, normal Q-Q plots, and tests of normality, what is your conclusion
regarding normality? If a transformation is necessary, which one would you use?f. Do
the results from Levene’s test for equal variances indicate homogeneity of
variance? Explain. 2- You
are interested in studying predictors (math94me, loinc93,
and read94me) of the percentage graduating in 1994 (grad1994).a. Examine
univariate normality for each variable. What are your conclusions about
distributions? What transformation should be conducted?b. After
making the necessary transformations, examine multivariate outliers using
Mahalanobis distance. What cases should be deleted?c. After
deleting the multivariate outliers, examine multivariate normality and
linearity by creating a Scatterplot Matrix.d. Examine
the variables for homoscedasticity by creating a residuals plot (standardized
vs. predicted values). What are your conclusions about homoscedasticity?Please use APA format with references.
GWU Statistics Excel Spreadsheet
Hello!Attached are the questions that need to be on 1 Excel document and clearly labeled (1a, 1b, 1c etc..). Each question ...
GWU Statistics Excel Spreadsheet
Hello!Attached are the questions that need to be on 1 Excel document and clearly labeled (1a, 1b, 1c etc..). Each question should be done on a separate sheet (for a total of 4 sheets).
4 pages
Competitive Advantage
There seems to be seems to stiff competition in the fast-food industry and renowned companies that used to be the economic ...
Competitive Advantage
There seems to be seems to stiff competition in the fast-food industry and renowned companies that used to be the economic giants of the fast-food ...
Similar Content
algebra problems and graph, homework help
I need help with problems 5,6,7, and 8 and graph. Thanks!...
select the product of (4x+ 3)(x^2 -2x+ 1)
I would need to know the product of (4x+3)(x^2 -2x+1)...
identify the two variables that make up the relation described in this statement: the number of ice
Creams sold on a given day depends on the temperature. Choose all that apply.A.types of icecream B.cost C.temperatur...
Teaching and Learning Technology Survey Analysis Discussion
Tasks:The file TLT Communication Survey on Moodle is the results from an on-campus survey about how effectively Teaching a...
Evaluate the expression.
Evaluate the expression.(a) log2 2 (b) log2 1 (c) &...
16. Please check to make sure my answers are right for this question. Thanks!
...
Equalfunctionstrueorfalse
In general, two functions will be equal if their rules and their domains are the same. First, let’s look at the rules of...
Last Year Next Year Budget
The Maine Department of Health Sage Program exists to provide preventative healthcare to uninsured and underinsured low in...
The Equation
Step 1: Open the brackets by multiplying the factor inside the bracket with the one outside the Step 2: Put the like facto...
Related Tags
Book Guides
The Prince
by Niccolò Machiavelli
A Farewell To Arms
by Ernest Hemingway
Persuasion
by Jane Austen
The Lost Man
by Jane Harper
Salt To The Sea
by Ruta Sepetys
Dr Jekyll And Mr Hyde
by Robert Louis Stevenson
The Nightingale
by Kristin Hannah
The Great Gatsby
by Francis Scott Key Fitzgerald
The Sun Is Also a Star
by Nicola Yoon
Get 24/7
Homework help
Our tutors provide high quality explanations & answers.
Post question
Most Popular Content
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
examine statistical significance and meaningfulness based on sample statements
I have attached a copy of four different scenarios you have to pick two and follow the prompts below I have also attached ...
examine statistical significance and meaningfulness based on sample statements
I have attached a copy of four different scenarios you have to pick two and follow the prompts below I have also attached sources and references that need to be in the textCritically evaluate the two scenarios you selected based upon the following points:
Critically evaluate the sample size.
Critically evaluate the statements for meaningfulness.
Critically evaluate the statements for statistical significance.
Based on your evaluation, provide an explanation of the implications for social change.
Use proper APA format and citations, and referencing.http://rpsychologist.com/index.htmlhttp://www.amstat.org/asa/files/pdfs/P-ValueStatem...
Abraham Lincoln University Data Set Schools a Sav Questions
Complete the following end of chapter exercises for Chapter 3.
Submit your response in an MS Word document or Pdf after i ...
Abraham Lincoln University Data Set Schools a Sav Questions
Complete the following end of chapter exercises for Chapter 3.
Submit your response in an MS Word document or Pdf after inserting the results
from SPSS Output into your document. This exercise utilizes the data set
schools-a.sav, which can be downloaded from chapter data sources referenced
above.1- You
are interested in investigating if being above or below the median income (medloinc)
impacts ACT means (act94) for schools. Complete the necessary steps to
examine univariate grouped data in order to respond to the questions below.
Although deletions and/or transformations may be implied from your examination,
all steps will examine original variables.a. How
many participants have missing values for medloinc and act94?b. Is
there a severe split in frequencies between groups?c. What
are the cutoff values for outliers in each group?d. Which
outlying cases should be deleted for each group?e. Analyzing
histograms, normal Q-Q plots, and tests of normality, what is your conclusion
regarding normality? If a transformation is necessary, which one would you use?f. Do
the results from Levene’s test for equal variances indicate homogeneity of
variance? Explain. 2- You
are interested in studying predictors (math94me, loinc93,
and read94me) of the percentage graduating in 1994 (grad1994).a. Examine
univariate normality for each variable. What are your conclusions about
distributions? What transformation should be conducted?b. After
making the necessary transformations, examine multivariate outliers using
Mahalanobis distance. What cases should be deleted?c. After
deleting the multivariate outliers, examine multivariate normality and
linearity by creating a Scatterplot Matrix.d. Examine
the variables for homoscedasticity by creating a residuals plot (standardized
vs. predicted values). What are your conclusions about homoscedasticity?Please use APA format with references.
GWU Statistics Excel Spreadsheet
Hello!Attached are the questions that need to be on 1 Excel document and clearly labeled (1a, 1b, 1c etc..). Each question ...
GWU Statistics Excel Spreadsheet
Hello!Attached are the questions that need to be on 1 Excel document and clearly labeled (1a, 1b, 1c etc..). Each question should be done on a separate sheet (for a total of 4 sheets).
4 pages
Competitive Advantage
There seems to be seems to stiff competition in the fast-food industry and renowned companies that used to be the economic ...
Competitive Advantage
There seems to be seems to stiff competition in the fast-food industry and renowned companies that used to be the economic giants of the fast-food ...
Earn money selling
your Study Documents