Mathematics, 25.06.2019 18:50, klawess4
Greg goldman, research analyst in the fixed-income area of an investment bank, needs to determine the average duration of a sample of twenty 15-year fixed-coupon investment grade bonds. goldman first categorizes the bonds by risk class and then randomly selects bonds from each class. after combining the bonds selected (bond ratings and other information taken as of march 31 of the current year), he calculates a sample mean duration of 10.5 years. assuming that the actual population mean duration is 9.7 years, which of the following statements about goldman's sampling process and sample is least accurate? a. goldman is using time-series data. b. the sample mean is a random variable. c. the sampling error is 0.8 years.
Answers: 3
Mathematics, 21.06.2019 16:10, GgRed
Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.
Answers: 1
Mathematics, 22.06.2019 00:30, Ramirez72
If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking
Answers: 2
Greg goldman, research analyst in the fixed-income area of an investment bank, needs to determine th...
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