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Suppose that a sample of households in a community is selected at random from the telephone directorty. WHat households are omitted from the frame?
Statistics and Probability, Statistics
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.
The height of woman ages 20-29 is normally distributed , with a mean of 64.3 inches. assuming the standard diviation = 2.4 inches. are you more likely to randomly select 1 woman with a height less than 66.2 inches or are ...
Determine the margin of error for an 80?% confidence interval to estimate the population mean when s? = 36 for the sample sizes below. ?a)n=12 ?b)n=26 ?c)n=54 ?a) The margin of error for an 80?% confidence interval when ...
Jane and John Doe are twins. Jane saves $10,000 per year from age 25 to 34 and nothing from age 35 onward (10 years of saving in total). John saves nothing from age 25 to 34 and $10,000 from age 35 to 64 (30 years of sav ...
A? government's department of transportation reported that in? 2009, airline A led all domestic airlines in? on-time arrivals for domestic? flights, with a rate of 83?%. Complete parts a through e below. a. What is the p ...
Assume that 8% of people have AB blood. A hospital blood bank needs ABblood so the blood bank begins checking potential donors. Use this Excel file geometric probabilities (enable the macro after opening the file) or thi ...
Is there a way to approach this problem in Excel: The Marriott Hotel marketing team wants to estimate ρ, the proportion of the hotel guests who were return visitors in the past three years. They select a simple random sa ...
Assume that 50 percent of the students at the university have taken 4 years of high school math. Of those with four years of high school math, 80 percent plan to major in science. Of those without 4 years, only 20 percen ...
In this question are you just using the empirical rule? You know that your population is normally distributed with a mean of 100 and a standard deviation of 15. Using the empirical rule as a rough approximation, what is ...
Suppose you just purchased a digital music player and have put 9 tracks on it. After listening to them you decide that you like of the songs. With the random feature on your? player, each of the 9 songs is played once in ...
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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