The manager of a computer software company wishes to study the number of hours top executives spend at their computer terminals by type of industry. The manager selected a sample of ve executives from each of three industries. At the 0.10 signicance level, can she conclude that there is a difference in the mean number of hours spent at a terminal per week by industry? Ball king Intuit Insu nine. 9 11 13 1 3 13 7 1 2 15 9 1 B 14 19 1 B 14 9 a-HormIlz H3 H1 : Treatment means all the same. [1. F039 3 |:| . [Round the nal answer to 2 decimal places.) c. Complete the ANOVA table. {Round the 55, MS. and F values to 2 decimal places.) 5mm:- 55 DF Ills .F Factor |:| Error :| Total 315.93 d. Decision: Ho; The following is a partial ANOVA table. Use the 0.01 significance level. Source SS DF MS F Treatment 2 Error 15 Total 420 10 a. How many treatments are there? Treatments b. What is the total sample size? Sample size c. What is the critical value of F? (Round the final answer to 2 decimal places.) Critical value of F d. From the information given above, fill in the blanks in ANOVA table below. Calculate the value of Falso. (Round the SS, MS, DF values to the nearest whole number and Fvalues to 2 decimal places.) Source SS DF MS Treatment Error 20 Total 420 10 e. What is your decision regarding null hypothesis for the 0.01 significance level? Decision: ((Click to select) * ) the null hypothesis.The fuel efficiencies for a sample of 27 compact, midsize, and large cars are entered into a statistical software package. Use the 0.01 significance level. Summary Groups Count Sum Average Variance Compact 12 265 22. 08333 9. 516119 Midsize 173.9 19.32222 7. 414440 Large 100.6 16. 76667 7. 351 Additional results are shown below. ANOVA Source of Variation SS DF MS F p-Value Between Groups 135. 5461 2 67.77305 8. 296002 0. 001825 Within Groups 196. 0647 24 8. 16936 Total 332. 1935 26 a. What is the critical value and the test statistic? (Round the final answers to 2 decimal places.) Critical value is The test statistic is b. Investigate whether there are any differences in the mean fuel efficiencies of the three cars. The mean fuel efficiencies are (Click to select) + ] c. State the decision regarding the null hypothesis? The null hypothesis of equal means is (Click to select)Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for men was 35 minutes per day. The standard deviation of the sample of the 16 men studied was 9 minutes per day. The mean listening time for the 19 women studied was also 35 minutes. but the standard deviation of the sample was 11 minutes. At the 0.01 signicance level, can we conclude that there is a difference in the variation in the listening times for men and women? a. State the decision rule. {Round the final answer In 2 decimal places.) Reject Ha when F) |:| . b. Compute the value of the test statistic. [Round the nal answer to 2 decimal places.) Value of the test statistic |:| c. What is your decision regarding HE. : 0% = 0'2 ? 2 Do not rajact