Question answer the following questions 1)what is the experimental material 2)experimental unit 3) what is a confounding variable in the experiment (I said weather but am not sure ) a 3) Suppose you did an experiment where you wanted to compare the effect of fertilizers with different concentrations of nitrogen on corn growth. You set up plots in a field where you plant corn, apply the different treatments of fertilizer, and measure the yield of corn in each plot at the end of the growing season. (8 pts) obni stbusteguriwool or to

n=50, mean=15, sd=3 1 6 0 - ), - n i - ), 1-1 WIWI 0 - ), 4. Simulate 1000 samples of size 50 from the same distribution given above. Compute są, sỉ and sì for each sample. (Use n = 50 in equations 1, 2, and 3. Think about why n is neither 1000 nor 50,000. Refer to Lab 2 for transforming variables.) Compute the mean of your 1000 values of the estimate sĩ. 5. Compute the mean of your 1000 values of the estimate sê. 6. Compute the mean of your 1000 values of the estimate sz. 7. Based on your answers to questions 4-6, what do you think is the best estimator of the variance among the three estimators sē, sand sz? Explain why. 8. Create a histogram of the 1000 values of the estimator you chose in question 7.

Degree of financial leverage The Plastic Corporation has a current capital structure consisting of $150,000 of 15% debt and 3,500 shares of common stock. The tax rate is 40%.a. Determine the earnings per share (EPS) when EBIT is $75,000 and $99,500.b. Calculate the degree of financial leverage (DFL) using EBIT of $75,000 as a base.c. What is the meaning of The Plastic Corporation’s DFL?

14.1 Match the terms in the left column with their definitions from the right column: 1. Bill of materials a. A factor that causes costs to change 2. Operations list b. A measure of the number of good units produced in a period of time c. A list of the raw materials used to create a finished product 3. Master production schedule 4. Lean manufacturing d. A document used to authorize removal of raw materials from inventory 5. Production order e. A cost accounting method that assigns costs to products based on specific processes performed 6. Materials requisition f. A cost accounting method that assigns costs to specific batches or production runs and is used when the product or service consists of uniquely identifiable items 7. Move ticket g. A cost accounting method that assigns costs to each step or work center and then calculates the average cost for all products that passed through that step or work center 8. Job-time ticket h. A document that records labor costs associated with manufacturing a product 9. Job-order costing i. A document that tracks transfer of inventory from one work center to another 10. Cost driver j. A document that authorizes manufacture of a finished good 11. Throughput k. A document that lists the steps required to manufacture a finished good 1. A document that specifies how much of a finished good is to be produced during a specific time period 12. Computer-integrated manufacturing m. A production planning technique that is an extension of the just-in-time inventory control method n. A production planning technique that is an extension of the materials requirement planning inventory control method o. A term used to refer to the use of robots and other IT techniques as part of the production process

11.60 Consider the flow of air through the piping system shown in Fig. P11.60. If the system is choked, determine the location where the Mach number is 1. Calculate the pressure ratio pb/Po, that causes choking in this system. 100 in 100 in Pв PO то 4 1.5 in diameter 1 in diameter Short nozzle 0.0030 in 1.5 in pipe 0.0035 in 1 in pipe

The worldwide market share for the Chrome web browser was 56.43% in a recent month. Suppose that you decide to select a sample of 100 students at your university and you find that 60 use the Chrome web browser. a. Use the five-step p-value approach to determine whether there is evidence that the market share for the Chrome web browser at your university is greater than the worldwide market share of 56.43%. (Use the 0.05 level of significance.) b. Suppose that the sample size is n = 600, and you find that 60% of the sample of students at your university (360 out of 600) use the Chrome web browser. Use the five-step p-value approach to try to determine whether there is evidence that the market share for the Chrome web browser at your university is greater than the worldwide market share of 56.43%. (Use the 0.05 level of significance.) c. Discuss the effect that sample size has on hypothesis testing. d. What do you think are your chances of rejecting any null hypothesis concerning a population proportion if a sample size of n = 20 is used?

Suppose that a wind is blowing in the direction S45°E at a speed of 30 km/h. A pilot is steering a plane in the direction N60°E at an airspeed (speed in still air) of 200 km/h. The true course, or track, of the plane is the direction of the resultant of the velocity vectors of the plane and the wind. The ground speed of the plane is the magnitude of the resultant. Find the true course and the ground speed of the plane. (Round your answers to one decimal place.)