Question: Suppose that a psychologist examined learning performance under three temperature conditions: 50 degrees, 70 degrees, and 90 degrees. Three samples of subjects were selected, one sample for each treatment condition. A test of general achievement was administered and the data is presented below:

Use SPSS to conduct a one-way ANOVA to help you answer the following questions. DO NOT USE ANY TABLES (ie., t* or F* --REPORT ALL ANSWERS FROM THE OUTPUT. Make sure to answer all parts within each question (i.e., in general, if there are 4 verbs in a sentence, I'll be looking for at least 4 answers). Please clearly label all answers for each question asked (or verb) - i.e., decision: reject the null.

Write the assumptions associated with making inferences back to the population. (a) Write the null and alternative hypotheses for the test of the variances. Make a decision about the test of the variances, provide statistical evidence for your decision, and make a final conclusion.

(b) Write the null and alternative hypotheses "in symbols" for the test of the means. Using the SPSS output only (do not use any tables - t* or F*). make a decision about the null hypothesis, provide statistical evidence for your decision, and make a final conclusion within the context of this example.

(c) Use the statistics from the ANOVA summary table from the SPSS output to calculate n2. Interpret this statistic within the context of this example.