ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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- Compute the R² using the following information. What does this number mean? Wage = 4.43 +0.61Edu + e n = 1089, SST = 37211.6, SSE 37211.6, SSE 19848.2 R² = = = 0.4666. 46.66% of the variation in wage can be explained by education. R² = 0.5334. 53.34% of the variation in wage can be explained by education. R² = 0.61.61% of the variation in wage can be - explained by education. R² = 0.3043. 30.43% of the variation in wage can be explained by education.arrow_forwardA merchant who sells newspapers and magazines at the corner kiosk heard you manage the Times’ inventory and asks for your advice. She has a small, variable number of customers who daily purchase the Chicago Sun Times. In order to get the newspapers in time, she has to place an order for the next day’s newspapers before noon. She pays $0.50 for each newspaper and sells them for $1.50 each. She has kept detailed records of her past sales of the Chicago Sun Times and estimates that 10% of the time she sells 10 newspapers, 40% of the time she sells 11, 30% of the time she sells 12, and 20% of the time she sells 13. (a) What is the merchant’s marginal profit and marginal loss? (b) Determine how many Chicago Sun Times newspapers she should buy every day to maximize expected profits. (c) Calculate the merchant’s expected profits for the optimal order quantity. (d) The merchant has always purchased 13 newspapers, thinking that the best way to maximize profits was to always meet the demand.…arrow_forwardOnly typed answerarrow_forward
- Don't copy give original answerarrow_forward10.61 The per-store daily customer count (i.e., the mean number of customers in a store in one day) for a nationwide convenience store chain that operates nearly 10,000 stores has been steady, at 900, for some time. To increase the customer count, the chain is considering cutting prices for coffee beverages. The question to be determined is how much to cut prices to increase the daily customer count without reducing the gross margin on coffee sales too much. You decide to carry out an experiment in a sample of 24 stores where customer counts have been running almost exactly at the national average of 900. In 6 of the stores, the price of a small coffee will now be $0.59, in 6 stores the price of a small coffee will now be $0.69, in 6 stores, the price of a small coffee will now be $0.79, and in 6 stores, the price of a small coffee will now be $0.89. After four weeks of selling the coffee at the new price, the daily customer count in the stores was recorded and stored in . At the 0.05…arrow_forwardExercise Annika spends all of her income on golf and pancakes. Greens fees at a local golf course are $10 per round. Pancake mix is $2 per box. When Annika's income is $100 per week, she buys 5 boxes of pancake mix and 9 rounds of golf. When Annika's income rises to $120 per week, she buys 10 boxes of pancake mix and 10 rounds of golf. Based on these figures, determine whether each of the following statements is true or false, and briefly explain your reasoning 1. Golf is a normal good, and pancake mix is an inferior good 2. Golf is a luxury good 3. Pancakes are a luxury goodarrow_forward
- Find the price and income elasticity of demand for the following demand functions at the given point on demand.arrow_forwardData point X value is 120 Data point Y value is 300 Data point Z value is 285 What is the mean?arrow_forwardA company sells three types of products for $20, $15, and $10 per unit. In 1 year, the total revenue for the three products was $2090, which corresponds to the sale of 153 units. The company sold half as many units of the $20 product as units of the $15 product. How many units of each product were sold? How much revenue came from the $20 unit The number of twenty dollar units sold was .The number of fifteen dollar units sold was .The number of ten dollar units sold was .The revenue from the $20 units wasarrow_forward
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