I need help I need a one-sample T-test that I will test against.

My test variable is " highest year of school completed"

I need a research question and a testable hypothesis

Find Test value from credible sources like census or vital statistics (provide the source)

1. Briefly state the purpose of the study (what you intend to accomplish).
2. Briefly and explicitly state why this study is important.
3. State what you are doing (e.g., comparing means/examining differences; examining relationships; predicting values).

Data and Methodology

1. Identify the variables.
2. Identify the level of measurement for each variable.
3. State the independent, dependent, and control variables (multiple regression exercises will have control variables).
4. Identify the unit of analysis.
5. State the research question then a directional or non-directional hypothesis and the null hypothesis (report the appropriate symbols, H₁, H₀).The RQ and hypotheses should flow from the introductory narrative. Make sure each hypothesis is specific.