In studies of seed production, why is it important to assign plots of land to either the control group or treatment group at random? a. it decreases the likelihood that the results of the study will be challenged. b. it increases the chance that the study will be able to be scaled to a higher level. c. it increases the likelihood that the treatment group will show a difference from the control group. d. it decreases the likelihood that plots that receive a particular treatment share other characteristics that might influence seed production.

Related Questions

• Expansionary fiscal policies are most appropriate when the economy is experiencing: a. A recessionary gap. b.An inflationary gap. c. A short-run equilibrium. d. A long-run equilibrium.
• Pepper Company reports a $120,000 increase in inventory and a $40,000 increase in accounts payable during the year. Cost of Goods Sold for the year was $1,200,000. The cash payments made to suppliers were:
• Sundance Systems recorded the following transactions in July: - July 5: Purchased 58 LCD televisions on account from Red River Supplies at $3,400 each, with terms 2/10, n/30. - July 8: Returned two defective televisions to Red River. - July 13: Paid the full amount due to Red River Supplies. - July 28: Sold the remaining 56 televisions purchased on July 5 for $3,900 each on account. Assuming the company uses a perpetual inventory system, record Sundance Systems' transactions.
• In a(n) ____, members coordinate and harmonize monetary, fiscal, and taxation policies. a. common market b. free trade area c. customs union d. economic union
• What are the three sources of law levels? * O Local, State, Federal O Local, Federal, World O State, Federal, Military O Federal, World, Municipal​
• DM Corporation has provided you with the following budgeted income statement for one of its products: Sales $700,000 Variable Expenses ($430,000) Contribution Margin $270,000 Fixed Expenses ($310,000) Operating Loss ($40,000) DM has encountered environmental problems with the product and will be forced to drop the product all together. They will be able to eliminate 60% of the fixed expenses. What will be the impact on the operating income for the company? a) Operating income decreases by $84,000 b) Increases by $84,000 c) Increase by $186,000 d) Decrease by $186,000
• The average annual return over the period 1926-2009 for the S&P 500 is 12.0%, and the standard deviation of returns is 21.3%. Based on these numbers, what is a 95% confidence interval for 2010 returns? A) -1.5%, 21.8% B) -10.7%, 32.8% C) -30.6%, 54.6% D) -30.6%, 76.4%
• According to the lean manufacturing philosophy, a.the product is "pushed through" the system in order to increase inventory. b.employees should be cross-trained for multiple functions. c.employees should be expert at one function rather than be cross-trained for multiple functions. d.finished goods should always be available in case a customer wants something.
• Open-end mutual funds are the most common type of investment company. Which of the following statements characterize these funds? Check all that apply. A. Make automatic reinvestment easy. B. Allow shareholders to convert shares from one fund to another within the same fund family. C. Always publicly traded on exchanges. D. Good choices only if you have lots of capital to invest. E. Convenient to own but difficult to set up.
• The fundamental purposes of communication are to provide information and instructions, to influence others, and to ________ activities: a. convey b. integrate c. organize d. discuss e. all of the above