The sampling method in which a sample is selected by first dividing the population into groups and then selecting members from each group is known as:
Answer(s): B
The population is divided into strata or subcategories and a sample is randomly selected from each strata.
What monthly payment is required over the next 48 months to pay off a $10,000 debt today, if interest ischarged at 14% per year, compounded monthly?
Answer(s): D
On the BAII Plus, press 48 N, 14 divide 12 = I/Y, 10000 PV, 0 FV, CPT PMT. On the HP12C, press 48 n, 14 ENTER 12 divide i, 10000 PV, 0 FV, PMT. Make sure the BAII Plus has the P/Y value set to 1.
If alpha = .05, what is the probability of making a Type I error?
Answer(s): E
Alpha is the probability of committing a type I error. So 0.05 = 1/20.
What is the annual Internal Rate of Return of this series of annual cash flows: Year 0: <$15,000>, Year 1:$8,000, Year 2: $8,000, Year 3: $1,000, Year 4: $4,000 (Note that the <> are used to indicate a negative number).
Answer(s): C
On the BAII Plus, press CF 2nd CLRWork 15000 +/- ENTER DownArrow 8000 ENTER DownArrow DownArrow 8000 ENTER DownArrow DownArrow 1000 ENTER DownArrow DownArrow 4000 ENTER DownArrow DownArrow 2nd Quit. Then press Irr CPT. On the HP12C, press these keys: 15000 CHS BlueShift CFo 8000 BlueShift CFj 8000 BlueShift CFj 1000 BlueShift CFj 4000 BlueShift CFj. Then press YellowShift Irr. The "DownArrow" represents the downward-pointing arrow on the top row of the BAII Plus keyboard. Make sure the BAII Plus has the P/Y value set to 1.
The weights (in grams) of the contents of several small bottles are 4, 2, 5, 4, 5, 2 and 6. What is the sample variance?
Sample variance is given by: (Sum of squared deviation from the mean)/(n-1). Mean is 4. Sample variance = 14/6 = 2.33xx-mean(x-mean)^22-242-24
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question 46, the answer should be data "virtualization" (not visualization).
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in 72 the answer must be [sys_user_has_role] table.
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