1. You wish to know the average GPA of MBA students. Compute the 95% confidenc You wish to know the proportion of MBA students that are majoring in Finance. 2. Compute the 95% confidence interval of the proportion using the sample of 200 students. Describe your findings.e interval of the mean using the sample of 200 students. Describe your findings. 3 .You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get? 4. You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get? Access the data file from Dr. M's website. Don't use the link that is provided in the Complete assignment! Dr. M's data file is a little different from the one that is in the Complete assignment. Dr. M's is the one that is up to date. Here's the biggest difference: when you do the Complete assignments the coding for gender is 0=MALE, 1=FEMALE. Always use this coding.

Discussion: The Importance of RelationshipsAs its name implies, confidence intervals provide a range of values, along with a level of confidence, to serve as an estimate of some unknown population value. Since it is rare to have access to the entire population, you must frequently rely on the confidence interval of the sample to make some inference about the population of interest. Before making accurate inferences to the population, we need to fully understand how the three key components of the interval—variability in the data, sample size, and confidence level—impact the width of the interval.For this Discussion, you will explore the relationship between these components and understand the trade-off between reducing risk in our confidence of estimates and increasing precision.To prepare for this Discussion:Review Chapters 6 and 7 of the Frankfort-Nachmias & Leon-Guerrero text and in Chapter 8, p. 256, consider the 2012 Benghazi Terrorist Attack Investigation and focus on how different levels of confidence and sample size work together.Review Magnusson’s web blog found in the Learning Resources to further your visualization and understanding of confidence intervals.Use the Course Guide and Assignment Help found in this week’s Learning Resources to search for a quantitative article related to confidence intervals.Using the SPSS software, General Social Survey dataset and choose a quantitative variable that interests you.By Day 3Using SPSS:Take a random sample of 100.Calculate the 95% confidence interval for the variable.Calculate a 90% confidence interval.Take another random sample of 400.Calculate the 95% confidence interval for the variable.Calculate a 90% confidence interval.Post your results and an explanation of how different levels of confidence and sample size affect the width of the confidence interval. Next, consider the statement, “Confidence intervals are underutilized” and explain what the implications might be of using or not using confidence intervals. Provide examples based on the results of your data. Also, use your research to support your findings.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.