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= 0.25P - 7. Suppose further that P = 90 when t = 0.
dP
(1 pt) Suppose P(1) satisfies the differential equation
dt
(a) Find an approximate value for P(1) when t = 1.
Answer: P(1) =
(b) Find an approximate value for P(1) when t = 2.
Answer: P(2) =
(c) Find an approximate value for P(t) when t = 3.
Answer: P(3) =
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MEDIATION REGRESSION MODEL SPSS, APA format
Moderator Problem (Background):A Psychology Professor is interested in understanding the variability in final exam grades ...
MEDIATION REGRESSION MODEL SPSS, APA format
Moderator Problem (Background):A Psychology Professor is interested in understanding the variability in final exam grades for his 100-level freshman Psychology Statistics class. He hypothesizes that class absences would be negatively correlated with final exam grades, and that the students’ pre-college levels of math proficiency would be positively correlated with final exam grades. He also hypothesizes that the relationship between absences and final grades would be moderated by levels of Math proficiency. The professor collects data for 35 students. Based on Placement Test Scores, obtained during pre-semester orientation/registration, 12 students had low (Developmental level) Math skills. Thirteen students were proficient in basic 9th grade Arithmetic and Algebra only. And, 10 students had advanced Math skills at the Calculus level. Math levels were recorded as 1 = Low Math Skills; 2 = Moderate Skills, and 3 = High math skills.At the end of the semester, and for each student, the number of class absences was recorded, as were their final exam grades. Using the data appearing in the attached Week 3 Moderator “Statistics Grades.sav” SPSS data file, conduct a multiple regression analysis to examine the direct and interactive (moderator) effects of absences and Math level on final exam grades. Summarize the results using correct APA style. Be sure to include the appropriate Tables and Graphs. Please use my sample summary for moderation as a guide for your summary. As you’ll see, my sample summary shows you what statistics to present and summarize in your papers, and how to present them in APA style format.Assignment Requirements.Describe the sample, the goals of the study, and the variables employed to conduct the studyDescribe the analysis strategy – How will you analyze the data.State the Null and Alternative HypothesesConduct the multiple regression analysis in which grades is the DV (outcome), Math Levels, and Absences, as well as their centered interaction, are the IV (predictors).Present and summarize the results for the Multiple Regression Analysis – including the effects for both IVs as well as the interaction.Conduct, present, and summarize the results for the simple slopes analyses for each level of Math proficiency. So, using the split file procedure in SPSS you must conduct 3 simple regression analysis in which the variable Grades is the DV (outcome) and Absences is the IV (predictor).Create the appropriate table of results for the multiple regression analysis (you must refer to this table within the summary).Create the appropriate table for the simple slopes analyses.Create a simple slopes plot showing the regression of grades on absences for each Math level. You must refer to this figure within the summary.In the Week 2 forum you must submit the summary as an MS-Word file; and please submit the SPSS output in a separate file. That way I can see the analyses that you ran.Please carefully read my sample summary and model your summary after it. Also, you must read chapter 15 in the Warner text.Please note that this analysis and summary must be your own original work, you may not share you work with any classmates. I created the practice data and sample summary as an in-class problem, and I encourage you with work together on the practice problem. But not on the graded assignment3 hours agoATTACHMENTS
Estimate a multiple regression model, statistics homework help
To prepare for this Discussion:Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program ...
Estimate a multiple regression model, statistics homework help
To prepare for this Discussion:Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program found in this week’s Learning Resources and consider the use of dummy variables.Create a research question using the General Social Survey dataset that can be answered by multiple regression. Using the SPSS software, choose a categorical variable to dummy code as one of your predictor variables.By Day 3Estimate a multiple regression model that answers your research question. Post your response to the following:What is your research question?Interpret the coefficients for the model, specifically commenting on the dummy variable.Run diagnostics for the regression model. Does the model meet all of the assumptions? Be sure and comment on what assumptions were not met and the possible implications. Is there any possible remedy for one the assumption violations?Be sure to support your Main Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.
12 pages
Attachment 1
With the gasoline time series data from the given table, show the exponential smoothing forecasts Applying the MSE measure ...
Attachment 1
With the gasoline time series data from the given table, show the exponential smoothing forecasts Applying the MSE measure of forecast accuracy, would ...
Business Report Case Analysis, statistics homework help
I have the answer for this case but I need it to be business reportI need to make 6 different reports for this case for me ...
Business Report Case Analysis, statistics homework help
I have the answer for this case but I need it to be business reportI need to make 6 different reports for this case for me and 5 of my friends.It have to be totally different we are in the same class with the same teacherI attached the data set and I attached the answers you can useI need a business report not just answer the questions:The business report has:1- Introduction / summary2- Result / finding/ analysis3- ConclusionRefer to the Century National Bank data. Using checking account balance as the dependent variable and using as independent variables the number of ATM transactions, the number of other services used, whether the individual has a debit card, and whether interest is paid on the particular account, write a report indicating which of the variables seem related to the account balance and how well they explain the variation in account balances. Should all of the independent variables proposed be used in the analysis or can some be dropped?
PSY325: Statistics for the Behavioral & Social Sciences 10 question quiz
Time Remaining:
...
PSY325: Statistics for the Behavioral & Social Sciences 10 question quiz
Time Remaining:
Question 1.
1.
The one in one-way ANOVA refers to ____________.
(Points : 1)
the number of groups involved in the analysis
the number of pairs of groups involved in the analysis
the number of dependent variables in the ANOVA
the number of independent variables in the ANOVA
Question 2.
2.
The within-subjects F is the non-independent groups equivalent of the one-way ANOVA.
(Points : 1)
True
False
Question 3.
3.
Why is matching uncommon when using the within-subjects F?
(Points : 1)
With several measures matching is usually unnecessary.
Multiple before/after t-tests will provide the same data.
Matching won’t control the error variance in more than two subjects.
It’s difficult to find enough subjects that have the same characteristics.
Question 4.
4.
In an analysis of significant differences, any variance in
scores not related to the independent variable is represented where?
(Points : 1)
In any ancillary analysis that may be conducted
Error variance
In the differences between groups
As a portion of the treatment effect
Question 5.
5.
Which of the following is a primary source of error variance?
(Points : 1)
Differences in the level of the treatment applied
Differences within the groups involved
The independence of the groups involved in the analysis
Differences in sample size
Question 6.
6.
Which of the following is a confounding variable?
(Points : 1)
A variable that causes variance but is uncontrolled.
A variable that is mathematically controlled in an analysis.
A variable that is controlled but not measured.
A variable that correlates with other analyses.
Question 7.
7.
The point of a post-hoc test in ANOVA is __________.
(Points : 1)
To determine statistical significance
To determine effect size
To determine error variance
To determine which pairs are significantly different
Question 8.
8.
How is the error term in the within-subjects F determined?
(Points : 1)
All variance minus the variance related to measure-to-measure differences
The measure-to-measure differences minus the residual variability
The residual variability minus the treatment effect
All variance minus the treatment effect minus the subject-to-subject differences
Question 9.
9.
The term homogeneity of variance refers to which of the following conditions?
(Points : 1)
All groups have similar amounts of data variability.
The same mean value occurs in each group.
All groups are drawn from the same population.
All groups have the same sample size.
Question 10.
10.
The treatment effect is a component of which of the following in the within-subjects F?
(Points : 1)
The measure-to-measure differences
The subject-to-subject differences
The measure times subjects differences
The residual differences
Time Remaining:
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MEDIATION REGRESSION MODEL SPSS, APA format
Moderator Problem (Background):A Psychology Professor is interested in understanding the variability in final exam grades ...
MEDIATION REGRESSION MODEL SPSS, APA format
Moderator Problem (Background):A Psychology Professor is interested in understanding the variability in final exam grades for his 100-level freshman Psychology Statistics class. He hypothesizes that class absences would be negatively correlated with final exam grades, and that the students’ pre-college levels of math proficiency would be positively correlated with final exam grades. He also hypothesizes that the relationship between absences and final grades would be moderated by levels of Math proficiency. The professor collects data for 35 students. Based on Placement Test Scores, obtained during pre-semester orientation/registration, 12 students had low (Developmental level) Math skills. Thirteen students were proficient in basic 9th grade Arithmetic and Algebra only. And, 10 students had advanced Math skills at the Calculus level. Math levels were recorded as 1 = Low Math Skills; 2 = Moderate Skills, and 3 = High math skills.At the end of the semester, and for each student, the number of class absences was recorded, as were their final exam grades. Using the data appearing in the attached Week 3 Moderator “Statistics Grades.sav” SPSS data file, conduct a multiple regression analysis to examine the direct and interactive (moderator) effects of absences and Math level on final exam grades. Summarize the results using correct APA style. Be sure to include the appropriate Tables and Graphs. Please use my sample summary for moderation as a guide for your summary. As you’ll see, my sample summary shows you what statistics to present and summarize in your papers, and how to present them in APA style format.Assignment Requirements.Describe the sample, the goals of the study, and the variables employed to conduct the studyDescribe the analysis strategy – How will you analyze the data.State the Null and Alternative HypothesesConduct the multiple regression analysis in which grades is the DV (outcome), Math Levels, and Absences, as well as their centered interaction, are the IV (predictors).Present and summarize the results for the Multiple Regression Analysis – including the effects for both IVs as well as the interaction.Conduct, present, and summarize the results for the simple slopes analyses for each level of Math proficiency. So, using the split file procedure in SPSS you must conduct 3 simple regression analysis in which the variable Grades is the DV (outcome) and Absences is the IV (predictor).Create the appropriate table of results for the multiple regression analysis (you must refer to this table within the summary).Create the appropriate table for the simple slopes analyses.Create a simple slopes plot showing the regression of grades on absences for each Math level. You must refer to this figure within the summary.In the Week 2 forum you must submit the summary as an MS-Word file; and please submit the SPSS output in a separate file. That way I can see the analyses that you ran.Please carefully read my sample summary and model your summary after it. Also, you must read chapter 15 in the Warner text.Please note that this analysis and summary must be your own original work, you may not share you work with any classmates. I created the practice data and sample summary as an in-class problem, and I encourage you with work together on the practice problem. But not on the graded assignment3 hours agoATTACHMENTS
Estimate a multiple regression model, statistics homework help
To prepare for this Discussion:Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program ...
Estimate a multiple regression model, statistics homework help
To prepare for this Discussion:Review Warner’s Chapter 12 and Chapter 2 of the Wagner course text and the media program found in this week’s Learning Resources and consider the use of dummy variables.Create a research question using the General Social Survey dataset that can be answered by multiple regression. Using the SPSS software, choose a categorical variable to dummy code as one of your predictor variables.By Day 3Estimate a multiple regression model that answers your research question. Post your response to the following:What is your research question?Interpret the coefficients for the model, specifically commenting on the dummy variable.Run diagnostics for the regression model. Does the model meet all of the assumptions? Be sure and comment on what assumptions were not met and the possible implications. Is there any possible remedy for one the assumption violations?Be sure to support your Main Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.
12 pages
Attachment 1
With the gasoline time series data from the given table, show the exponential smoothing forecasts Applying the MSE measure ...
Attachment 1
With the gasoline time series data from the given table, show the exponential smoothing forecasts Applying the MSE measure of forecast accuracy, would ...
Business Report Case Analysis, statistics homework help
I have the answer for this case but I need it to be business reportI need to make 6 different reports for this case for me ...
Business Report Case Analysis, statistics homework help
I have the answer for this case but I need it to be business reportI need to make 6 different reports for this case for me and 5 of my friends.It have to be totally different we are in the same class with the same teacherI attached the data set and I attached the answers you can useI need a business report not just answer the questions:The business report has:1- Introduction / summary2- Result / finding/ analysis3- ConclusionRefer to the Century National Bank data. Using checking account balance as the dependent variable and using as independent variables the number of ATM transactions, the number of other services used, whether the individual has a debit card, and whether interest is paid on the particular account, write a report indicating which of the variables seem related to the account balance and how well they explain the variation in account balances. Should all of the independent variables proposed be used in the analysis or can some be dropped?
PSY325: Statistics for the Behavioral & Social Sciences 10 question quiz
Time Remaining:
...
PSY325: Statistics for the Behavioral & Social Sciences 10 question quiz
Time Remaining:
Question 1.
1.
The one in one-way ANOVA refers to ____________.
(Points : 1)
the number of groups involved in the analysis
the number of pairs of groups involved in the analysis
the number of dependent variables in the ANOVA
the number of independent variables in the ANOVA
Question 2.
2.
The within-subjects F is the non-independent groups equivalent of the one-way ANOVA.
(Points : 1)
True
False
Question 3.
3.
Why is matching uncommon when using the within-subjects F?
(Points : 1)
With several measures matching is usually unnecessary.
Multiple before/after t-tests will provide the same data.
Matching won’t control the error variance in more than two subjects.
It’s difficult to find enough subjects that have the same characteristics.
Question 4.
4.
In an analysis of significant differences, any variance in
scores not related to the independent variable is represented where?
(Points : 1)
In any ancillary analysis that may be conducted
Error variance
In the differences between groups
As a portion of the treatment effect
Question 5.
5.
Which of the following is a primary source of error variance?
(Points : 1)
Differences in the level of the treatment applied
Differences within the groups involved
The independence of the groups involved in the analysis
Differences in sample size
Question 6.
6.
Which of the following is a confounding variable?
(Points : 1)
A variable that causes variance but is uncontrolled.
A variable that is mathematically controlled in an analysis.
A variable that is controlled but not measured.
A variable that correlates with other analyses.
Question 7.
7.
The point of a post-hoc test in ANOVA is __________.
(Points : 1)
To determine statistical significance
To determine effect size
To determine error variance
To determine which pairs are significantly different
Question 8.
8.
How is the error term in the within-subjects F determined?
(Points : 1)
All variance minus the variance related to measure-to-measure differences
The measure-to-measure differences minus the residual variability
The residual variability minus the treatment effect
All variance minus the treatment effect minus the subject-to-subject differences
Question 9.
9.
The term homogeneity of variance refers to which of the following conditions?
(Points : 1)
All groups have similar amounts of data variability.
The same mean value occurs in each group.
All groups are drawn from the same population.
All groups have the same sample size.
Question 10.
10.
The treatment effect is a component of which of the following in the within-subjects F?
(Points : 1)
The measure-to-measure differences
The subject-to-subject differences
The measure times subjects differences
The residual differences
Time Remaining:
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