3. Similarly to #2, we want to look at ethnicity for the deaths in New York....
3. Similarly to #2, we want to look at ethnicity for the deaths in New York. We know that 16% of the deaths included in our data set were to people who identified as white for ethnicity. Assume we take a sample of 20 deaths. a. How many people with white as an ethnicity would you expect to die from our sample of 20 deaths? b. What is the standard deviation? c. What is the probability that exactly 2 people with white as an ethnicity die? d. What is the probability that more than 2 people with white as an ethnicity die?
Homework Answers
Add Answer to:
3. Similarly to #2, we want to look at ethnicity for the deaths
in New York....
A shelter has 24 dogs up for adoption. Suppose you want to adopt 2 of them....
A shelter has 24 dogs up for adoption. Suppose you want to adopt 2 of them. How many different ways could you choose 2 dogs from the 24? We are interested in analyzing data from bike sharing in LA. Use O to denote a one-way route and A to denote an annual pass. The probability that someone has a one-way trip route is 84.74%. The probability that they have an annual pass is 2.77%. The probability that they have an...
Two people, one in Los Angeles and one in New York, take the graduate record entrance...
Two people, one in Los Angeles and one in New York, take the graduate record entrance exam. These were different exams, but we would like to compare their scores. The person in Los Angeles received a 647 while the average 640 with a standard deviation of 20. The person in New York recieved a 570 while the avarage was 560 with a standard deviation of 25. First, calculate the z- score for each person, then indicate who scored higher after...
1. You are hired by the governor of New York to study whether a tax on...
1. You are hired by the governor of New York to study whether a tax on liquor has decreased average liquor consumption in your state. You are able to obtain, for a sample of individuals selected at random, the difference in liquor consumption in ounces) for the years before and after the tax. For person i who is sampled randomly from the population, Y, denotes the change in liquor consumption. Suppose we know that the variance of the decrease in...
2. Suppose next that we have even less knowledge of our patient, and we are only...
2. Suppose next that we have even less knowledge of our patient, and we are only given the accuracy of the blood test and prevalence of the disease in our population. We are told that the blood test is 90 percent reliable, this means that the test will yield an accurate positive result in 90% of the cases where the disease is actually present. Gestational diabetes affects 0+1 percent of the population in our patient’s age group, and that our...
2. Suppose next that we have even less knowledge of our patient, and we are only...
2. Suppose next that we have even less knowledge of our patient, and we are only given the accuracy of the blood test and prevalence of the disease in our population. We are told that the blood test is 99 percent reliable, this means that the test will yield an accurate positive result in 9 of the cases where the disease is actually present. Gestational diabetes affects #.1 percent of the population in our patient's age group, and that our...
4. In Uganda only 9% of the population has access to electricity. Suppose we randomly sample...
4. In Uganda only 9% of the population has access to electricity. Suppose we randomly sample 20 people in Uganda. Let X be the number of people in our sample who have access to electricity. (a) What distribution will X have? (Hint: X only takes on the values 0, 1, ... 19, 20, so it can't be a continuous distribution.) (b) Find the mean and standard deviation for X. (c) Find the probability that 10 people or less in the...
In Uganda only 9% of the population has access to electricity. Suppose we randomly sample 20...
In Uganda only 9% of the population has access to electricity. Suppose we randomly sample 20 people in Uganda. Let X be the number of people in our sample who have access to electricity. (a) What distribution will X have? (Hint: X only takes on the values 0, 1, ... 19, 20, so it can’t be a continuous distribution.) (b) Find the mean and standard deviation for X . ( c) Find the probability that 10 people or less in...
please solve question 3 completely. thank you, 3) We want to decide whether to invest in...
please solve question 3 completely.
thank you,
3) We want to decide whether to invest in a restaurant. The payoff if there is high demand for our food is $400 with probability 80% and -$100 with probability 20%. If we don't invest, we have no payoff. a. What is the outcome of the game if we are risk neutral? b. What is the outcome of the game if we are risk averse and our utility function is U(X) = (x...
2) Suppose we want to estimate the mean mortage layment for homes in Denver. Suppose that...
2) Suppose we want to estimate the mean mortage layment for homes in Denver. Suppose that it is known from past data thag the mean monthly mortage payment is $2500 with a standard deviation of $1000. If we want to be 92% confident that lur sample mean is within $300 of the population mean, what is the recommended sample size? 3) Suppose we want to estimate the proportion of homes in Denver that are valued at over $1,000,000. Suppose that...
40 uestion A: Using figures to describe human be 1 Look at the first 3 columns...
40 uestion A: Using figures to describe human be 1 Look at the first 3 columns of "causes of death" figure Opoints /h e 3Ce of Deatbere the pondation's concern is too hiah. relative to the actual risk of that cause What are 3 causes where NY Times news reporting is too low, relative to the actual risk? 2 What is the ratio between the level of (homicide + terrorism), and the reporting level? (Numbers 1mean actual deaths are greater...
1. You are hired by the governor of New York to study whether a tax on liquor has decreased average liquor consumption in your state. You are able to obtain, for a sample of individuals selected at random, the difference in liquor consumption in ounces) for the years before and after the tax. For person i who is sampled randomly from the population, Y, denotes the change in liquor consumption. Suppose we know that the variance of the decrease in...
2. Suppose next that we have even less knowledge of our patient, and we are only given the accuracy of the blood test and prevalence of the disease in our population. We are told that the blood test is 99 percent reliable, this means that the test will yield an accurate positive result in 9 of the cases where the disease is actually present. Gestational diabetes affects #.1 percent of the population in our patient's age group, and that our...
4. In Uganda only 9% of the population has access to electricity. Suppose we randomly sample 20 people in Uganda. Let X be the number of people in our sample who have access to electricity. (a) What distribution will X have? (Hint: X only takes on the values 0, 1, ... 19, 20, so it can't be a continuous distribution.) (b) Find the mean and standard deviation for X. (c) Find the probability that 10 people or less in the...
please solve question 3 completely.
thank you,
3) We want to decide whether to invest in a restaurant. The payoff if there is high demand for our food is $400 with probability 80% and -$100 with probability 20%. If we don't invest, we have no payoff. a. What is the outcome of the game if we are risk neutral? b. What is the outcome of the game if we are risk averse and our utility function is U(X) = (x...
40 uestion A: Using figures to describe human be 1 Look at the first 3 columns of "causes of death" figure Opoints /h e 3Ce of Deatbere the pondation's concern is too hiah. relative to the actual risk of that cause What are 3 causes where NY Times news reporting is too low, relative to the actual risk? 2 What is the ratio between the level of (homicide + terrorism), and the reporting level? (Numbers 1mean actual deaths are greater...
Most questions answered within 3 hours.
-
S sells property with a $500 basis to B for $450, and B later
sells the...
asked 2 minutes ago -
On January 1, 20X7, Green Corp. paid $1,020,000 to acquire Wax
Co. Wax maintained separate incorporation....
asked 3 minutes ago -
C++
Write a class Fraction that defines adding, subtracting,
multiplying, and dividing fractions by overloading standard...
asked 1 hour ago -
This java code won't run and I can't figure out the problem with
it. Please help...
asked 2 hours ago -
Trace the following recursive methods:
a) isPal with the string “abccda”
b) isAnBn with the string...
asked 3 hours ago -
1. Which of the following is false about photosynthesis?
A. ATP is the molecule used to...
asked 4 hours ago -
A simple random sample of size n=64 is obtained from a
population with a mean of...
asked 5 hours ago -
(2 dimensions, 1 object, 2 accelerations)
1) A projectile is thrown with a wind. The wind...
asked 5 hours ago -
Brian makes $34,100 per year. How much can Brian expect to
contribute to FICA taxes in...
asked 6 hours ago -
To buy a new house you must borrow $155,000. To do this you take
out a...
asked 6 hours ago -
Spacely Sprockets is evaluating the construction of a new plant
on land the company purchased for...
asked 7 hours ago -
1. Consider a linear regression model of y on K regressors and
an intercept.
(i) Describe...
asked 7 hours ago