key concepts in statistics Essay Dissertation Help
The purpose of this assignment to orient students to the key concepts in statistics. This assignment will introduce students to the language of statistics. Students will also get a chance to warm-up on evaluating some basic descriptive statistics using Excel® prior to the course start.
Assignment Steps
This assignment has an Excel® dataset spreadsheet attached. You will be required to only do one of the three datasets.
Resource: Microsoft Excel®, Statistics Concepts and Descriptive Measures Data Set
Download the Statistics Concepts and Descriptive Measures Data Set.
Choose one of the following datasets to complete this assignment:
Consumer Food
Financial
Hospital
Answer each of the following in a total of 90 words:
For each column, identify whether the data is qualitative or quantitative.
Identify the level of measurement for the data in each column.
For each column containing quantitative data:
Evaluate the mean and median
Interpret the mean and median in plain non-technical terms
Use the Excel =AVERAGE function to find the mean
Use the Excel =MEDIAN function to find the median
For each column containing quantitative data:
Evaluate the standard deviation and range
Interpret the standard deviation and range in plain non-technical terms
Use the Excel =STDEV.S function to find the standard deviation
For range (maximum value minus the minimum value), find the maximum value using the Excel =MAX function and find the minimum value using the Excel’s =MIN function
PART B
Purpose of Assignment
The purpose of this assignment is to develop students’ analytical capabilities to evaluate, analyze, and apply descriptive statistics techniques to real-world datasets.
Assignment Steps
Resources: Microsoft Excel®, Case Study: MBA Schools in Asia-Pacific
Review the Case Study: MBA Schools in Asia-Pacific and the Case Study: MBA Schools in Asia-Pacific data set.
Prepare a 1,050-word managerial report for your boss.
Use the following questions for guidelines and directions on what to include in the report:
What is the type of data (Quantitative or Qualitative) for each of the columns (variables) in the dataset? If quantitative, is the data discrete or continuous? Neatly summarize your response in a table for all the columns (variables).
Using Excel®, find the mean, median, standard deviation, minimum, maximum, and the three quartiles for each of the quantitative variables identified in part 1 above. Neatly summarize in a table on this document. Comment on what you observe.
What are the minimum and maximum full-time enrollments? Which schools have the minimum and maximum full-time enrollments?
What is the average number of students per faculty member? Is this low or high? What does this mean to prospective applicants who are interested in pursuing an MBA in one of the leading international business schools?
What are the mean, median, and modal ages? What does this mean to prospective applicants?
What is the mean percentage of foreign students? How many and which schools have 1% and 0% foreign students? Which schools have highest percentage of foreign students? Please state these percentages.
What percentage of schools require the GMAT test?
What percentage of schools require English tests such as Test of English as a Foreign Language (TOEFL)?
What percentage of schools require work experience? From this percentage, does this appear to be a significant factor in gaining admissions?
What are the mean and median starting salaries? Which schools have the minimum and maximum starting salaries? How much are these minimum and maximum salaries?
What are the mean tuition for foreign students and for local students? Does there appear to be a significant difference? What is the difference between the two means?
How many schools require work experience and how many of them don’t? What is the mean starting salary for schools requiring work experience? What is the mean starting salary for schools requiring no work experience?
How many schools require English tests and how many don’t? What is the mean starting salary for schools requiring English tests? What is the mean starting salary for schools requiring no English tests?
Does there appear to be a correlation between age and starting salaries? Comment on the strength and the direction of the correlation.
Comment on the skewness for the data on starting salaries:
Plot a histogram and determine the skewness.
Find the skewness coefficient.
Find the mean, median, and mode for starting salaries and compare the three measures to determine skewness.
Finally, use Empirical Rule on the starting salaries and determine whether the salaries follow the Empirical Rule.
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