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A poll of 93 students found that 29% were in favor of raising tution to build a new math building. The standard deviation of this poll is 4%. What would be the standard deviation if the sample size were increased from 93 to 187?
Statistics and Probability, Statistics
Project Q costs 240. It provides inflows of 120 per year for three years. The cost of funds is 6%. Find the replacement chain value needed to compare it to a six year project.
Donald is a college student who has $4125 in a savings that he earned from his summer job. He plans to leave the $4125 in a certificate of deposit(CD) with Goldman Sachs bank earning 2% for three years, but his banker ha ...
Need help with calculating these problems: A research group conducted an extensive survey of 2957 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gather ...
Blooper Industries must replace its magnoosium purification system. Quick & Dirty Systems sells a relatively cheap purification system for $15 million. The system will last 5 years. Do-It-Right sells a sturdier but more ...
A musical instruments retailer has 10,000 point-of-sale transactions out of which 1500 sales included both items of electric guitars and guitar cases, and out of which 750 had sales of new strings. If the electric guitar ...
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.
In a production process, a product is assembled by using four independent parts (A, B, C, and D). In order for the part to operate properly, each part must be free of defects. The probability that the parts are defect-fr ...
Let a random sample be taken of size n = 64 from a population with a known standard deviation of 15. Suppose that the mean of the sample is 40. Find the 99% confidence interval for the mean of the population from which t ...
We perform a statistical test to examine if the mean lifetime of lab mice increases when given vitamin B12 compared to a placebo. Which of the following is a Type I error? Conclude that Vitamin B12 increases the mean lif ...
Most analysts focus on the cost of tuition as the way to measure the cost of a college education. But incidentals, such as textbook costs, are rarely considered. A researcher at Drummand University wishes to estimate the ...
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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