Category: Statistics

The term paper will
investigate the correlation between self-reported social media usage patterns
and academic performance among university students. The research will collect
data from a randomly selected sample of students using a structured online survey
with questions related to academic performance metrics (GPA) and frequency and
duration of social media use.

please solve the following homework of finding the amount of people doing those professions in spain by region and municipality and the turnover of every profession. and provide the sources. the homework should be filled on the same excel I provided, with the most updated data available.

CONFIDENCE INTERVALS 
For the confidence intervals, you will be using the PANIC process.  You MUST include the following to earn full credit:
P: State the random variable AND the parameter in words, using correct statistical notation
A: Check the assumptions for approximate normality for the sampling distribution of quantitative data
N: The “Test” you are using on your calculator, AND the values you are entering into the calculator for that test.
I: Name the point estimate AND give the confidence interval in interval form
C: State your final conclusion in words in the context of the problem.
Using the PANIC process, construct a 90% confidence interval for the GPA of students who record, on average, LESS than 10,000 steps per day. 
Using the PANIC process, construct a 90% confidence interval for the GPA of students who record, on average, MORE than 10,000 steps per day.  
What do the two confidence intervals tell you about the data? Can you reach any conclusions about a difference between the two groups (those who logged on average less than 10,000 step per day, and those who logged more than 10,000 steps per day) based on the confidence intervals? 
HYPOTHESIS TESTS 
Oral Roberts University has a “Fast Track” program that allows upper-level (junior and senior) students to enroll concurrently in both undergraduate and graduate courses.  Students must have maintained a minimum GPA of 3.00 to be considered for this program.  Even though the students in our sample are only First-year students, we will use a GPA of 3.00 as our benchmark grade.  For our first hypothesis test, we will be testing the claim that students who average less than 10,000 steps per day have an average GPA of more than 3.00.  For our second hypothesis test, we will be testing the claim that students who average more than 10,000 steps per day have an average GPA of more than 3.00.
For the Hypothesis tests, you do NOT have to use the full PHANTOMS process, since you have already completed some of the steps with your confidence interval.  However, you MUST include the following:
H: The null and alternative hypothesis (using correct notation)
N: The “Test” you are using on your calculator, AND the values you are entering into the calculator for that test.
T: The sample statistic and the test statistic (using appropriate statistical notation for each)
O: The p-value (again, using appropriate statistical notation)
M: Whether you reject or fail to reject the null hypothesis
S: Your final conclusion in the context of the problem.
Test the hypothesis that students who record, on average, LESS than 10,000 steps per day will have an average GPA greater than 3.00. Use a 5% level of significance. 
Test the hypothesis that students who record, on average, MORE than 10,000 steps per day will have an average GPA greater than 3.00. Use a 5% level of significance. 
Based on the conclusions of each of the hypothesis tests, can you make any conclusions about the academic achievement of each of these groups?  Clearly explain your reasoning. 
CONCLUSION 
Return to the original article.  Re-read the discussion and the Conclusion on pages 10-11.  Summarize the findings of YOUR statistical analysis of the sample data by answering the following questions.  Be sure to address ALL of the points below, plus anything else you think is relevant to your conclusions.
What connections do you see between the DESCRIPTIVE statistics (your boxplots & histograms) and the INFERENTIAL statistics (your confidence intervals & hypothesis tests). Be specific. 

. A group of 9 executives of a certain firm include 4 who are married, 3 who never married, and 2 who are divorced. Three of the executives are to be selected for promotion. Let X denote the number of married executives and Y the number of never married executives among the 3 selected for promotion. Assuming that the three are randomly selected from the nine available, what is the joint probability density function of the random variables X and Y?

Based on the information in the attached excel file, Collect basic demographic information to understand sample,
Conduct descriptive analysis to summarize key variables and characteristics of sample. Use descriptive statistics to provide an overview of your data.
Basic inferential analysis may be conducted to explore relationships or patterns in the data
Interpret results tentatively, focusing on identifying trends and potential areas for further investigation. (BY USING SPSS)

A group of nurses believes that they are seeing positive results in pediatric patients when using therapy dogs. They want to know if this is worth putting into practice. Explain how this study might be conducted.
Include the following:
Why should this be done as an inferential study?
What sampling method would you suggest they use to conduct the study? Why?
Explain the design of the experiment, discussing why it should be done this way. Include the following
the treatment
if there is a placebo
if this is a blind study
the sample size
the control group
the explanatory and response variable
potential sources of bias
design type (complete randomized, matched pairs, randomized block)

Prior: 
https://ashford.mediaspace.kaltura.com/media/BUS308+%7C+Week+4+Introduction/1_9dibo9bq
Watch for ToolPak:
https://ashford.mediaspace.kaltura.com/media/How+to+add+Excel%27s+Data+Analysis+ToolPak/0_qm214kiv
Prior to beginning work on this discussion forum, watch the Week 4 IntroductionLinks to an external site. video, and read Chapter 13 in the MindTap ebook by clicking on the Getting Ready link for each perspective chapter.
Step 1: Read:
Review Case Problem 3: TourisTopia Travel Download Case Problem 3: TourisTopia Travelfrom Chapter 13 in the ebook.
Step 2: Do:
Run the ANOVA: Two-Factor with Replication statistics for the Data File TourisTopia (Chapter 13) using the video How to Add Excel’s Data Analysis ToolPakLinks to an external site. for assistance.
Step 3: Complete a managerial report,
Use descriptive statistics to summarize the data from Triple T’s study. Based on descriptive statistics, what are your preliminary conclusions about whether the time spent by visitors to the Triple T website differs by background color or font? What are your preliminary conclusions about whether time spent by visitors to the Triple T website differs by different combinations of background color and font?
Explain whether Triple T has used an observational study or a controlled experiment.
Use the data from Triple T’s study to test the hypothesis that the time spent by visitors to the Triple T website is equal for the three background colors. Include both factors and their interaction in the ANOVA model, and use a=.05.
Use the data from Triple T’s study to test the hypothesis that the time spent by visitors to the Triple T website is equal for the three fonts. Include both factors and their interaction in the ANOVA model, and use a=.05.
Use the data from Triple T’s study to test the hypothesis that time spent by visitors to the Triple T website is equal for the nine combinations of background color and font. Include both factors and their interaction in the ANOVA model, and use a=.05.
Discuss whether the results of your analysis of the data provide evidence that the time spent by visitors to the Triple T website differs by background color, font, or combination of background color and font. What is your recommendation?

on the word pdf theres second part to the questions i will send it to you later first i have to finish the first part then the second part will show. thanks

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Pw-Samson321
Study Level; Graduate
Month/Year of birth-06-1982
MBA/MSF 624 – Business Analysis for Decision Making – T301 – 2245
Exam 1 is the assignment chapters1-7

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Pw-Samson321
Study Level; Graduate
Month/Year of birth-06-1982
MBA/MSF 624 – Business Analysis for Decision Making – T301 – 2245
Week 8