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What is the advantage of a randomized experiment in which the investigators randomly assign treatment conditions to subject over an observational study in which the subject self-select the treatment groups?
Statistics and Probability, Statistics
What can a continuum of elements in terms of strategic planning mean to performance to small-medium enterprises?
A coin is flipped five times in an experiment. If x is the number of heads that turn out in the experiment, what is the set of possible values of variable x?
A random group of 20 depressive patients has been given the MMPI. Their scores on a depression scale are as follows: 30 45 32 28 33 25 37 32 34 32 26 35 30 34 35 31 36 26 42 39 Construct a frequency distribution. Then ma ...
A doctor wants to predict the birth weight of a newborn baby (measured in grams) based on the gestational age (measured in weeks) at the time of birth. The doctor uses 11 data points, with births ranging from 29 weeks to ...
For each scenario below, what is the appropriate statistical analysis to use? (t-test for two independent samples, t-test for dependent samples, ANOVA, or chi-square test of independence) and why? (a) A study was conduct ...
Why has LIBOR played such a central role in international business and financial contracts? Why has this been questioned in recent debates over its value reported?
A marketing organization claims that 10% of its employees are paid minimum wage. If a hypothesis test is performed that fails to reject the null hypothesis, how would this decision be interpreted?
When Carolina's house burned down, she lost household items worth a total of $145,000. Her house was insured for $245,000, and her homeowner's policy provided coverage for personal belongings up to 70 percent of the insu ...
At a college, 66 % of courses have final exams and 56 % of courses require research papers. Suppose that 45 % of courses have a research paper and a final exam. Find the probability that a course has NONE of these two r ...
What is the sample size for studies with MOE of +/-3.5% and +/-2.8%?, with a confidence level of 95%, sample statistics of .50? Please show work.
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As