Question: In order to study the shoe sizes in his town. Billy sample the population by dividing the residents by age and randomly selecting the proportionate number of residents of each age group. Which type of sampling is used.
Question: When is sampling stratified sampling appropriate.
Question: In reference to different sampling methods, Is the following statement true or false?
Question: A town planner is interested is getting some demographic data about the household in the city. The city has four wards with the following numbers of households, ward a has 2107, ward B 903, Ward C ha 1505 and Ward D has 1490. The budget for the project allows the planner to survey 100households. She plans to use as stratified sampling method. What number of households should be chosen from Ward B. Enter whole number?
Question: To study the mean blood pressure of all people in her state. Christine samples the population by dividing the residents by towns and randomly selecting 9 of the towns. She then collects data from all the residents in the selected town. Which type of sampling is used.?
Question: When considering different sampling methods, cluster sampling the steps_____
Question: The management of a large airline wants to estimate the average time after takeoff taken before the crew begins serving snacks and beverages on their flights. Assuming that management has easy access to all of the information that would be required to select flights by each proposed method. Which of the following would be reasonable methods of stratified sampling? Select all that apply.
Question: An executive for a large national restaurant chain with multiple locations in each of 513 counties wants to personally sample the cleanliness of the chain’s restaurants throughout the country by visiting restaurants. The executive wants a good quality sample but wants to minimize travel time and expenses. Which of the following sampling methods would be most appropriate?
Instituition / Term
Term
Year 2022
Institution
MATH 225N Statistical Reasoning for the Health Sciences
