Question on stratified random sampling

Assignment Help Basic Statistics
Reference no: EM1394849

Jane chooses every 20th person in the campus phone book to call for her interview study. Justin identifies important subgroups in the campus population, then selects participants so that his sample had the same proportions of each important group, as the population does. What type of sampling occurs?

Reference no: EM1394849

Questions Cloud

Determining acceptance sampling : An assembly line turns out 10% deffectives. Determine an acceptance number and sampling plan for samples of size 14 and a producers risk of 3%. (AQL = 10)).
Dilution of edta with a final concentration : You are given a stock solution of EDTA at a concentration of 5mM, how would you dilution of EDTA with a final concentration of 5mM in a final volume of 250mL?
What is exim bank and how does it benefit the us economy : What are at least three ways in which you would get help in this marketing campaign.
Comparison of goodness-of-fit test : Sample data in a goodness-of-fit test are compared with __________. A. a predetermined or historical standard for the variable being studied
Question on stratified random sampling : Jane chooses every 20th person in the campus phone book to call for her interview study. Justin identifies important subgroups in the campus population
Why is it essential for researchers to understand good deal : Explain why is it essential for researchers to understand the good deal about way of life of people they are studying? What problems could arise if, researcher started research on Amish.
How bacteria resistant to most antibiotics : Some human pathogenic bacteria are resistant to most antibiotics. How would you prove a bacterium is resistant to antibiotics using laboratory culture techniques?
General population of adults in united states : Dr. Bundy recently earned permission from the warden of a local prison to use prisoners to study the effects of the drug Zoloft on depression.
Variable linear regression analysis : What is the best first glance prediction you can give the customer about the value of his house given your 2 variable linear regression analysis?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Assumption of independence which is violated

What is the probability of a fatal accident over a lifetime? Explain your reasoning carefully. Hint: Assume independent events. Why might the assumption of independence be violated? Why might a driver be tempted not to use a seat belt "just on thi..

  Discuss the fields in poisson distribution

Discuss the fields in which Poisson distribution is applied. Why does it matter whether a population of arrivals is limited or unlimited?

  Find the value of z-score- standard normal distribution

Find the value of Z-score- standard normal distribution.Find out a value of the standard normal random variable z, call it z0.

  Standard error and confidence interval for proportion

Find the 99% confidence interval for the population proportion.

  Determining sample as representative of population

In exercise identify (a) sample and (b) population. Also, find whether sample is likely to be representative of population.

  Kruskal wallis non-parametric anova

Describe what the researcher must do if one of the requirements is not met and give illustrations.

  Describe sampling distribution of sample mean

Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?

  Correlation between the amount spent and gender

At a large department store, the amount a shopper spent and the shopper's gender (male or female) were recorded. To determine if gender is useful in explaining the amount of money a shopper spends at the store we could

  Case study-ohio company

Ohio Company provided the following information regarding its only product--ice skates.

  Estimating confidence interval using the given data

What is the 95% confidence interval estimate of the mean television viewing time per week during the 8:00 p.m. to 11:00 p.m. time period?

  Computing probability values using the empirical rule

The ages of cars owned by all employees of a large company have a bell shaped distribution with a mean of 8 years and a standard deviation of 2 years. Using the empirical rule, find the approx. percentage of cars (owned by those employees) that are b..

  Average value of sales

The manager is concerned that sales are slipping, after taking into account the average value of sales for four consecutive Saturdays being $4800.

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