In this there is a two-step procedure to select a simple random sample of 30 EAI managers. Use this procedure to select a simple random sample of 50 EAI managers.
Here is one way of selecting a random sample of 30 in Excel. We can use a binomial random variable to select 30 of the managers at random out of the total of 2500. The random variable will return a 1 or a 0 in a certain proportion based on the probability that we enter. Here the probability used is 30/2500 = 0.012 for a value of 1 and 2470/2500 = 0.988 for a ...
In conducting his study of reactions to unemployment, Peter tries to select every 10th unemployed person in his country for a telephone interview. Peter had trouble identifying the entire population (no central lists were kept) and could not contact all the potential participants he could identify, because some of them did not
Please show calculations and formulas used to work this problem.
A study of motel facilities in Rock Hill, South Carolina, showed there were 25 facilities. The city's convention and visitors bureau is studying the number of rooms at each location. The results are as follows
19.
90 72 75 60 75 72 84 72 88 74 105 115 68 74
If 10% of all disk drives produced on an assembly line are defective,
a. What is the probability that there will be exactly one defect in a randomsample of 5 of these?
b. What is the probability that there will be no defects in a randomsample of 5?
Please help answer the following questions.
In what ways is a systematic sample more efficient than a simple randomsample? In what way is systematic sampling less representative of the population than simple random sampling?
The random number generator in a computer generates three-digit numbers that are uniformly distributed between 0.000 and 0.999 at at rate of one random number per second starting at t=0. A sample function from a random process is generated by summing the 10 most recent random numbers and assigning this sum as the value of the s
A corporation is considering a new issue of convertible bonds. Management believes that the offer terms will be found attractive by 20% of all its current stockholders. Suppose that this belief is correct. A randomsample of 144 current stockholders is taken
a. If randomsample of 144 current stockholders is taken, what is th
Discuss the difference between random sampling and stratified random sampling.
When is it most appropriate to use stratified random sampling techniques?
Please provide a discussion for the following question:
The process of random sampling guarantees that the sample selected will be representative of the population. Is this statement true? Discuss. Please explain 200 words using an example.
I am choosing participants to call for a telephone survery of campus drinking patterns. If I get a list of all the students on campus, and select every 10th student to call have I chosen
a. Population
b. Simple random sampling
c. Systematic randomsample
d. Representative sample
I feel that this is c. Am I in the ball
