An experienced trader wants to find out whether there is a difference in the mean rate of retum for 15 types of trades. The trader selected a sample of 182 and conducted an ANOVA test that shown as follows. Variation Between (Treatment) Within (Error) Total SS 425 19 973 df ? 7 7 The between (Treatment) mean square is equal to? MS 4 E T (Round answer to three decimal places ex. 2.001) 2 points QUESTION 9 An investment analyst wants to establish whether there is a change in the mean rate of return for 8 types of investments. The analyst selected a sample of 193 and conducted an ANOVA test that is shown as follows. Variation Between (Treatment) Within (Error) Total SS 331 2 848 df ? 2 ? The Within (Error) mean squares is equal to? MS ? ? F 2 (Round answer to three decimal places ex. 2.091) 2 point QUESTION 11 A financial analyst wants to ascertain whether there is a disparity in the mean rate of retum for 9 types of transactions. The analyst selected a sample of 113 and conducted an ANOVA test that is shown as follows. Variation Between (Treatment) Within (Error) Total SS 191 ? 670 The F ratio is equal to? df. ? ? ? MS ? 2 F 17 (Round answer to three decimal places ex. 2.091) 3 points QUESTION 18 The proprietor of Cypres Recordings investigated the relationship between sales (y) and the amount spent on advertising (x). A random sample of 3 Recordings gives the following information. (x1) = 19, (y1)=28, x2= 17, y2 = 24, x3 = 27, y3-25 To estimate the regression equation, the slope is equal to? (Round answer to three decimal places ex. 2.091) QUESTION 15 Xona, a photocopy company plans to estimate the mean of visitors to its shop. There was a previous study that showed that the standard deviation is 59. with confidence level 95 percent and allowable error of 6 Based on that, the required sample size to estimate the population mean is equal to? QUESTION 16 A minimum mileage guarantee on the tires of a tire manufacturing company is being considered to be set. When the company conducted many tire tests, it revealed that the mean mileage has a normal distribution with mean 3.630 and standard deviation 72 The tire manufacturer wants to set the minimum guaranteed ineage so that no more than 2.5 percent of tires will have to be exchanged Calculate the Lower limit of guaranteed mileage? (Round answer to two decimal places ex. 2.09) 2 points Sav 2 points QUESTION 12 In a bakery, a sample of 19 days was taken to study the daily sales. It was found that the mean daily sales are 140 with a sample standard deviation is 97. The 98 percent upper confidence limit for the population mean a daily sale would be? (Round answer to two decimal places ex. 2.09)