Some people think that public libraries are a place to find information and read books. Others believe that computers replace the function of libraries, so building libraries is a waste of money. Discuss both these views and give your own opinion. Give reasons for your answer and include any ...
such as the proportion of non-traditional students at a university. However, it is often impractical to poll the entire population of interest, so statisticians typically poll a sample of people from the population and calculate the population proportion for the sample...
Get a random sample of the population. If your sample is not random, estimates of the proportion (and other quantities) may be biased. For example, if you want to estimate the proportion of boys in an elementary school, you could assign a number to each student, then randomly pick a sam...
Aim of study: To find out more about their (32) ___ and movements. • Method: Whales are tagged with an antenna. When the antenna communicates with a number of satellites, the whale's (33) ___ can be identified. Researchers access the results using the project (34) ___ • Find...
(especially strong perfumes) seems to trigger a migraine headache, and some note that exposure to bright and flickering lights can be followed by a migraine. It would seem that a person with a tendency to get migraines should try to find out which of these situations is associated with the ...
Create best-in-class surveys with a free Qualtrics account Free account Related resources Distribution & Response Survey Distribution Methods 23 min read Distribution & Response How Long to Accept Survey Responses 5 min read Market Research Mixed Methods Research ...
For instance, it will take a lot more sample to find statistically significant differences between groups if you are asking, “What month do you think Christmas is in?” than if you are asking, “How many miles are there between the Earth and the moon?”. In the former, nearly everybody...
Acensusis where everyone is surveyed. A parameternever changes, because everyone (or everything) was surveyed to find the parameter. For example, you might be interested in the average age of everyone in your class. Maybe you asked everyone and found the average age was 25. That’s a para...
A sales executive with a family to support and bills to pay has been unable to find full-time work after six months of unemployment. They finally take up a three-month contract that entails only six hours of work a week. While the U-3 measure would consider them employed, the U-6 mea...
Choose a time frame for collecting the data. For each item, tally how often it occurred (or cost or total time). Then, add these amounts to determine the grand total for all items. Find the percent of each item in the grand total by taking the sum of the item, dividing it by the...