How should the designer estimate the population mean

Assignment Help Basic Statistics
Reference no: EM131731683

Question: The designer of a sample survey stratifies a population into two strata, H and L. H contains 100,000 people, and L contains 500,000. He decides to allocate 100 samples to stratum H and 200 to stratum L, taking a simple random sample in each stratum.

a. How should the designer estimate the population mean?

b. Suppose that the population standard deviation in stratum H is 20 and the standard deviation in stratum L is 10. What will be the standard error of his estimate?

c. Would it be better to allocate 200 samples to stratum H and 100 to stratum L?

d. Would it be better to use proportional allocation?

Reference no: EM131731683

Questions Cloud

Identify a professional setting and the three tests : Describe how the three selected tests and category are related to one's area of specialization and career goal.
How does the term pharmacology differ from the term clinical : how does the term pharmacology differ from the term clinical pharmacology. give examples of how nurses utilize pharmacology in clinical practice
Determine the maturity value of the certificate : Use this information to determine the maturity value of the certificate on December 31, 208? (Round your answer to the nearest whole dollar.)
Determine the dollar value of goodwill : Use this information to determine the dollar value of Goodwill that will be recorded in Alpha Company's consolidated balance sheet
How should the designer estimate the population mean : The designer of a sample survey stratifies a population into two strata, H and L. H contains 100,000 people, and L contains 500,000. He decides to allocate.
Discuss local anesthesia and general anesthesia : Create a chart with the headings Local Anesthesia and General Anesthesia. Compare and contrast the preoperative and postoperative needs
What is the total interest income : The bonds have a par of $10,000, pay interest at a 5% annual rate and have 5 years until maturity. What is the total Interest Income
How might stratification be used in given sampling problems : How might stratification be used in each of the following sampling problems? A survey to examine the lead concentration in the soil in a large plot of land.
What is the implied price elasticity of customers : What is the implied price elasticity of customers for each of the seven car types listed in the table.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd