Use the data file, Caffeine.csv as needed to answer the following: d. With specific reference to the research scenario described above, explain how the calculation of pooled variance will be influenced by the sample sizes in this study. No calculations are required to answer this question. e. Calculate (by hand) and interpret Cohen's d measure of effect size in this study. The calculations you computed by hand need to be clearly displayed along with an interpretation of effect size. f. Calculate (by hand) and report the confidence interval. Please be sure to show your calculations. Note, you will need to consult the t-distribution table to identify the t critical value. g. Does the confidence interval you computed in question f) imply a statistically significant result? Explain.

The accompanying data table lists measures of self-esteem from a student project. The objective of the project was to study how levels of self-esteem in subjects relate to their perceptions of self-esteem in other target people who were described in writing. The test here works well even though the data are at the ordinal level of measurement. Use a 0.05 significance level and apply the methods of two-way analysis of variance. What is the conclusion? Click on the icon to view the data table. F = 5.48 (Round to two decimal places as needed.) What is the corresponding P-value of the test statistic, F, for this test? P-value = 0.006 (Round to three decimal places as needed.) State the conclusion of this test. Reject Ho. There is sufficient evidence to warrant rejection of the claim that measurems of self-esteem are not affected by an interaction between the subject's self-esteem and the target's self- esteem. There does appear to be an effect from an interaction between the self-esteem of…

Use the following ANOVA table to answer the question. Source Regression Error Total DF MS SS 355.22 177.61 10.91 2 76.38 431.60 7 How many observations were in the data set used to create this model? (i.e. what is n?) 18 15 10 9.

To determine if their 3.00 centimeter washers are properly adjusted, Hutcheson & Gregory Manufacturing has decided to use an x-Chart which uses the range to estimate the variability in the sample. Perioa ODS I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 18 4 ODSZ ODS3 ODS4 ODS5 Opsb 3.04 2.99 3.01 2.98 3.04 3.04 2.99 3.03 3.01 2.95 3.0017 3.00 2.96 3.0050 2.96 3.00 3.00 3.00 2.99 3.00 2.9917 3.02 3.03 3.03 2.96 3.00 2.97 3.00 2.96 2.97 3.01 3.01 2.99 3.01 3.04 2.96 3.00 2.98 3.0033 3.04 2.9917 3.0017 3.03 2.97 2.96 2.96 2.99 3.01 2.9867 2.97 2.97 3.03 3.01 3.0033 3.00 3.04 3.04 2.98 3.0000 2.98 3.00 2.9967 2.98 3.01 3.02 3.03 2.96 3.01 3.02 2.97 2.9900 2.98 3.01 2.9 2.97 2.96 2.9767 2.95 3.01 2.98 3.03 2.98 2.98 2.9883 2.99 2.95 2.97 3.01 2.99 2.9900 3.03 2.98 2.97 2.9800 2.99 2.97 2.95 3.02 2.96 2.98 3.04 3.04 2.97 3.05 3.0067 2.98 2.97 3.01 3.03 2.97 2.96 2.9867 2.96 2.96 2.97 2.96 2.9800 3.00 3.01 2.95 3.02 2.99 2.95 Sample Mean 3.03 3.00 Table Control Chart Sampie Range 0.09 0.08…