You are a member of a population of 10,000 people. You happen to be chosen for a simple random sa...
You are a member of a population of 10,000 people. You happen to be chosen for a simple random sample of size 1,000 this year. Then you are chosen for another simple random sample of size 100 (drawn independently of the first sample) next year. You think you're incredibly unlucky to be chosen for two such samples, but how unlucky are you? The probability of this happening is which of the following?
|
Homework Answers
Add Answer to:
You are a member of a population of 10,000 people. You happen to be chosen for a simple random sa...
(1 point) For each problem, select the best response. (a) A simple random sample of size...
(1 point) For each problem, select the best response. (a) A simple random sample of size n is defined to be A. a sample of size n chosen in such a way that every unit in the population has the same chance of being selected. B. a sample of size n chosen in such a way that every set of n units in the population has an equal chance to be the sample actually selected. C. a sample of size...
1 point) For each problem, select the best response. (a) A simple random sample of size...
1 point) For each problem, select the best response. (a) A simple random sample of size n is defined to be A. a sample of size n chosen in such a way that every unit in the population has a known nonzero chance of being selected. B. a sample of size n chosen in such a way that every unit in the population has the same chance of being selected. C. a sample of size n chosen in such a...
7. If a random sample of 50 people are chosen from a population where the average...
7. If a random sample of 50 people are chosen from a population where the average age is 30 with a standard deviation of 5 years, answer the following: A) What is the expected mean age of your sample of 50 people? B) What is the standard deviation of sample averages here? C) What is the probability that your sample average is less than 27?
In simple random sample every member of the population has a known and equal chance of...
In simple random sample every member of the population has a known and equal chance of being selected, but you cannot calculate sampling error. * true or false
Which choice best describes a simple random sample? O a selection of members of a population...
Which choice best describes a simple random sample? O a selection of members of a population chosen because of their convenient accessibility and proximity O when a population is first sorted into groups that share a similar characteristic and individuals are randomly chosen from each of the groups O a selection of members from a population in such a way that every possible sample of the same size has an equal chance of being chosen O when a population is...
Would you agree to the statement on random sampling methods. Please explain why. In probability samples...
Would you agree to the statement on random sampling methods. Please explain why. In probability samples “each population element has a known (non-zero) chance of being chosen for the sample.” (StatTrek 2020). Some examples of probability samples are, simple random sampling, stratified sampling, cluster sampling, multistage sampling, and systematic random sampling. Simple random sampling is the population and sample consists of “N” objects, and an example is when people play the lottery. Stratified sampling is based on some type of...
You have an alphabetical list of all 10,000 non-managerial employees in your company, and you want...
You have an alphabetical list of all 10,000 non-managerial employees in your company, and you want to choose a random sample of 200 of them for a survey. To do this, you randomly choose an integer from 1 to 10,000/200, that is, from 1 to 50. Then, for example, if this integer is 17, your sample is 17th "block" of 200 people in the list, i.e., people indexed from 200*16+1 to 200*16+200. Which of the following is true of this...
Suppose a simple random sample of size n = 75 is obtained from a population whose...
Suppose a simple random sample of size n = 75 is obtained from a population whose size is N = 10,000 and whose population proportion with a specified characteristic is p=0.6. Complete parts (a) through (c) below. (a) Describe the sampling distribution of p. Choose the phrase that best describes the shape of the sampling distribution below. O A. Not normal because n s 0.05N and np(1-p) < 10. O B. Not normal because ns0.05N and np(1-P) 2 10. O...
A simple random sample of size n from a finite population of size N is a...
A simple random sample of size n from a finite population of size N is a sample selected such that each possible sample of size n A. has the same probability of being selected B. has a probability of 1/n of being selected C. has a probability of n/(N-1) of being selected D. has a probability of 1/N of being selected
A random sample of size n1 = 16 is selected from a normal population with a...
A random sample of size n1 = 16 is selected from a normal population with a mean of 75 and variance of 288. A second random sample of size n2 = 9 is taken independently from another normal population with mean 80 and variance of 162. Let X^1 and X^2 be the two-sample means. Find the probability that X^1 + X^2 is less than 158. Select one: a. 0.7385 b. 0.3085 c. 0.6915 d. 0.4235
7. If a random sample of 50 people are chosen from a population where the average age is 30 with a standard deviation of 5 years, answer the following: A) What is the expected mean age of your sample of 50 people? B) What is the standard deviation of sample averages here? C) What is the probability that your sample average is less than 27?
Which choice best describes a simple random sample? O a selection of members of a population chosen because of their convenient accessibility and proximity O when a population is first sorted into groups that share a similar characteristic and individuals are randomly chosen from each of the groups O a selection of members from a population in such a way that every possible sample of the same size has an equal chance of being chosen O when a population is...
Suppose a simple random sample of size n = 75 is obtained from a population whose size is N = 10,000 and whose population proportion with a specified characteristic is p=0.6. Complete parts (a) through (c) below. (a) Describe the sampling distribution of p. Choose the phrase that best describes the shape of the sampling distribution below. O A. Not normal because n s 0.05N and np(1-p) < 10. O B. Not normal because ns0.05N and np(1-P) 2 10. O...
Most questions answered within 3 hours.
-
MATLAB
Part 1 – randFloatValue.m This function accepts two numbers,
lower and upper, and returns a...
asked 1 minute ago -
You have been asked to hide prizes around your house for your
3-year old nephew. His...
asked 3 minutes ago -
Ammonia will decompose into nitrogen and hydrogen at high
temperature. An industrial chemist studying this reaction...
asked 9 minutes ago -
10. Complete the table below
only using hexadecimal numbers:
AL CODE
EBX
EAX
[EAX]
mov eax,...
asked 27 minutes ago -
trust is best established through the combination of ------and
------- .
1. magnanimity and justice
2....
asked 42 minutes ago -
Blood pressure is normally taken on the upper arm at the level
of the heart. Suppose,...
asked 41 minutes ago -
Suppose that the satellite around the earth has an orbit that is
24 KM larger in...
asked 44 minutes ago -
Calculate the [OH (aq)] in limes which have a [H3O*(aq)] of 1.3 x
10 mol/L
asked 42 minutes ago -
A nozzle with a radius of 0.250 cm is attached to a garden hose
with a...
asked 53 minutes ago -
PLEASE do not use any loops for the program; only recursion is
allowed
4. Write a...
asked 1 hour ago -
Please help me with me. I did the first part to write the operations but in...
asked 59 minutes ago -
Use Cryptool to find the Cryptographic SHA-1 hash value of the
string "abc". The calculator is...
asked 1 hour ago