Crazy Dave, a well known baseball analyst, wants to determine

Crazy Dave, a well known baseball analyst, wants to determine which variables are important in predicting a team’s wins in a given season. He has collected data related to wins, earned run average (ERA) and runs scored for the 2007 season (stored in the file BB2007).Develop a model to predict the number of wins based on ERA and runs scored.,,,,a. State the multiple regression equation.,b. Interpret the meaning of the slopes in this equation,c. Predict the number of wins for a team that has an ERA of 4.50 and has scored 750 runs.,d. Perform a residual analysis on the results and determine if the regression assumptions are valid.,e. Is there a significant relationship between number of wins and the two independent variables (ERA and runs scored) at the 0.05 level of significance?,f. Determine the p-value in (e) and interpret its meaning.,g. Interpret the meaning of the coefficient of multiple determination in this problem,h. Determine the adjusted r^2,i. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. Indicate the most appropriate regression model for this set of data,j. Determine the p-values in (i) and interpret their meaning.,k. Which is more important in predicting wins—pitching, as measured by ERA, or offense, as measured by runs scored? Explain., ,need to be done using excel or phstat

company sells precision grinding machines to four customers in

company sells precision grinding machines to four customers in four different countries. It has just signed a contract to sell, two months from now, a batch of these machines to each customer. The following table shows the number of machines (batch quantity) to be delivered to the four customers. The selling price of the machine is fixed in the local currency, and the company plans to convert the local currency at the exchange rate prevailing at the time of delivery. As usual, there is uncer- tainty in the exchange rates. The sales department esti- mates the exchange rate for each currency and its standard deviation, expected at the time of delivery, as shown in the table. Assume that the exchange rates are normally distributed and independent.,Multicurrency Decision,Batch Selling Customer Quantity Price,Exchange Rate Standard,1 2 3 4,12 £ 57,810,8 ¥ 8,640,540 5 €97,800,2 R 4,015,000,Mean,$1.41􏰵£ $0.00904􏰵¥ $0.824􏰵€ $0.0211􏰵R,Deviation,$0.041􏰵£ $0.00045􏰵¥ $0.0342􏰵€ $0.00083􏰵R,1. Find the distribution of the uncertain revenue from the contract in U.S. dollars. Report the mean, the variance, and the standard deviation.

External funding needs are computed as:A. Projected total

External funding needs are computed as:,,A. Projected total assets – (projected liabilities + projected net worth),B. Projected total assets – (actual liabilities + net worth),C. Projected current assets – (projected current liabilities + net worth),D. None of the above,,Proposed Answer: D,,Is this correct?

27. An adjusted rate mortgage allows the rate of interest to

27. An adjusted rate mortgage allows the rate of interest to fluctuate over the term a loan, depending on economical conditions. A fixed rate mortgage holds the rate of interest constant. Which sequence of monthly payments has smaller variance, those on an adjustable rate mortgage or those on a fixed rate mortgage?

Which of the following ratios appears on a common-size balance

Which of the following ratios appears on a common-size balance sheet? ,, I. Debt to asset ratio , II. Net working capital to total assets , III. Net profit margin,,A. I , II, III,B. I only,C. I and III,D. III only,,Proposed Answer: C.,,Explanation: Net Profit Margin is only shown on a balance sheet and not on a common-size balance sheet which compares balance sheet to income statement.,,Is this correct?