Scores of an IQ test have a bell-shaped distribution with a mean of
100100 and a standard deviation of1919.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between 6262 and138138?
(b) What percentage of people has an IQ score less than4343or greater than157157?
(c) What percentage of people has an IQ score greater than 138138?
In: Statistics and Probability
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey ? Assume that a prior survey suggests that about 73% of air passengers prefer an aisle seat. Assume that you want to be 97% confident that the sample percentage is within 2.5 percentage points of the true population percentage.
In: Statistics and Probability
In C++ language implement an end of the world simulation. Create 3 global variables earthquake = 30%, hurricane = 35%, volcano = 35%
Implement a class named World. Class World inherited Class CRandom
In class World create three methods Earthquakes, Hurricanes and Volcanoes. These methods return death toll in numbers and percentage up to their global percentage. This percentage is calculated using CRandom.
In: Computer Science
In a quality control test of a highway project, the following data was collected as shown below. Bulk specific gravity of the compacted mix is 2.30, Bulk Specific gravity of aggregate=2.75, The percentage of bitumen absorption is 0.45%, The percentage of binder by mass=5.5%,Bitumen Specific Gravity=1.05, answer the following questions: What is the percentage of Air voids in the compacted mix?
Aggregate effective specific gravity?
In: Civil Engineering
An institute reported that 60% of its members indicate that lack of ethical culture within financial firms has contributed most to the lack of trust in the financial industry. Suppose that you select a sample of 100 institute members.
b. The probability is 90% that the sample percentage will be contained within what symmetrical limits of the population percentage? The probability is 90% that the sample percentage will be contained above nothing% and below nothing%.
In: Math
A BBB-rated corporate bond has a yield to maturity of 9.5%. A U.S. Treasury security has a yield to maturity of 7.6 %. These yields are quoted as APRs with semiannual compounding. Both bonds pay semi-annual coupons at a rate of 8.5%and have five years to maturity.
a. What is the price (expressed as a percentage of the face value) of the treasury bond?
b. What is the price (expressed as a percentage of the face value) of the BBB-rated corporate bond?
c. What is the credit spread on the BBB bonds?
a. What is the price (expressed as a percentage of the face value) of the treasury bond?
The price of the Treasury bond as a percentage of face value is ____ % (Round to three decimal places.)
In: Finance
Bond J has a coupon rate of 5 percent. Bond K has a coupon rate of 10 percent. Both bonds have 7 years to maturity, make semiannual payments, and have a YTM of 8 percent. If interest rates suddenly rise by 5 percent, what is the percentage price change of Bond J? If interest rates suddenly rise by 5 percent, what is the percentage price change of Bond K? If interest rates suddenly fall by 5 percent, what is the percentage price change of Bond J? If interest rates suddenly fall by 5 percent, what is the percentage price change of Bond K?
In: Finance
Week 4 11 of 12
The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 6.6627 years. What percentage of individual aircraft have ages between 11 years and 16 years? Assume that a random sample of 81 aircraft is selected and the mean age of the sample is computed. What percentage of sample means have ages between 11 years and 16years?
The percentage of individual aircraft that have ages between 11 years and 16 years is
__________________
(Round to the nearest integer as needed.)
The percentage of sample means that have ages between 11 years and 16 years is
_________________
(Round to the nearest tenth as needed.)
In: Statistics and Probability
Question 2: Consider an economy with a single bank called the National Bank. Suppose the National Bank has $500 in bank capital. Then assume the National Bank receives $1000 in deposits. It keeps 10 percent as reserves and loans the rest.
a) Show a T-account for the National Bank.
b) Calculate the leverage ratio.
c) Now suppose 20 percent of the borrowers defaulted. Can you show the new T-account?
d) What is the percentage decline in bank capital? What is the percentage decline in total assets? Why is the percentage decline in bank capital is larger than the percentage decline in total assets?
In: Accounting
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 90% confident that the sample percentage is within 3.5 percentage points of the true population percentage. Complete parts (a) and (b) below.
a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. nequals nothing (Round up to the nearest integer.)
b. Assume that a prior survey suggests that about 34% of air passengers prefer an aisle seat. nequals nothing (Round up to the nearest integer.)
In: Statistics and Probability