# Question

We compare the attitude scores of people tested in the morning to their scores when tested in the afternoon. We obtain the following interval data but it does not have homogeneous variance. With a = .05, is there a significant difference in scores as a function of testing times?

(a) Do the groups differ significantly (a = .05) ?

(b) What do you conclude about maturity scores in the population?

(a) Do the groups differ significantly (a = .05) ?

(b) What do you conclude about maturity scores in the population?

## Answer to relevant Questions

Round off the following numbers to two decimal places: (a) 13.7462, (b) 10.043, (c) 10.047, (d) .079, and (e) 1.004. Create a graph showing the data points for the following scores. We measure the maturity level of students who have completed statistics and students who have not. Maturity scores tend to be skewed. For the following interval scores, A report indicates that the Wilcoxon T test was significant. (a) What does this test indicate about the design of the study? (b) What does it indicate about the raw scores? (c) What will you learn about the relationship ...(a) What is the symbol for observed frequency? What does it mean? (b) What is the symbol for expected frequency? What does it mean?Post your question

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