Chi square | PSYC 3002 – Introduction to Basic Statistics | Walden University

To prepare for this Assignment, imagine that you have information about how 20 nursing students and 20 psychology students felt about starting PSYC 3002 on Day 1 of this class. You want to know if nursing students and psychology students felt differently about embarking on the Introduction to Basic Statistics journey. You can find the data set for this Assignment in the Weekly Data Set forum found in the Discussions area of the course navigation menu.

To complete this Assignment, submit your answers to the following. Use SPSS to determine if academic program is related to feelings about PSYC 3002 by computing the appropriate chi square test.

  1. Recall the four scales of measurement you learned about in Week 1 (i.e., nominal, ordinal, interval, ratio). Explain what scale of measurement is used to measure academic program in this example. How do you know?
  2. Explain what scale of measurement is used to measure feeling about PSYC 3002. Explain how you know.
  3. State whether this scenario requires a goodness of fit test or a test of independence. Explain your answer.
  4. Before computing the chi square, state the null hypothesis and alternative hypothesis in words (not formulas).
  5. Identify the obtained χ2 using SPSS and report it in your answer document.
  6. State the degrees of freedom and explain how you calculated it by hand.
  7. Identify the p value using SPSS and report it in your answer document.
  8. Explain whether you should retain or reject the null hypothesis and why.
  9. Are the results statistically significant? How do you know?
  10. Explain what you can determine about the relationship between academic program and feelings about PSYC 3002.

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