descriptive statistics

PSY-520 Graduate Statistics

Topic 1 – Descriptive Statistics Project

Directions: Use the following information to complete the questions below.

A researcher was interested in the anxiety present in students just prior to the midterm exam. The researcher used an anxiety self-quiz to gauge the student’s anxiety. The scores for 30 students are given here.

69	99	91	66	70	98	70	53	40	58
61	66	94	77	70	56	88	85	86	40
84	86	54	48	86	43	78	53	79	89

1. Construct a frequency table with class, frequency, relative percent, and cumulative percent that has 6 classes to describe the distribution of the data in SPSS.

2. Use the frequency table to construct a histogram in SPSS.

3. Use SPSS to calculate the numerical descriptive statistics mean, median, standard deviation, and variance of the anxiety scores.