Which sampling method would allow you to avoid gender from being a confound in your experiment? O A. Simple Random Sampling B. Convenience Sampling O C. Quota Sampling Reset Selection

Which of the following sampling methods was used in the study described below? A researcher is interested in knowing how many hours a week teenagers spend on social media. He surveys his daughter, who is a teenager, and fifty of her teen friends. a. simple random sample b. systematic sample c. convenience sample d. self-selected sample

This is part of a practice test, want to see if I am doing it right

Scenario:  An early childhood education student is undertaking an observational study of literacy development among kindergardeners in Rancho Cordova. The school she is placed at has 230 students in 12 classrooms Short Answer A. Describe a way she can take a stratified sample. B. Describe what the explanatory and response variables may be. C.A convenience sample is taken and introduces nonrandom sampling error. What is one way this can happen?

A community college employs 8787 ​full-time faculty members. To gain the​ faculty's opinions about an upcoming building​ project, the college president wishes to obtain a simple random sample that will consist of 99 faculty members. He numbers the faculty from 1 to 8787. Complete parts​ (a) and​ (b) below.   LOADING... Click the icon to view the random number table.       Question content area bottom Part 1 ​(a) Using the provided random number​ table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row​ 3, column 6. Using this position as the starting point and proceeding​ downward, determine the numbers for the 99 faculty members who will be included in the sample.   The numbers for the faculty members are enter your response here.

A marketing expert for a particular chain of restaurants is planning a survey in which 510 people will be randomly selected from each age​ group: 10-19,​ 20-29, and so on.       What type of sampling is​ used?     Convenience sampling   Simple random sampling   Systematic sampling   Stratified sampling   Cluster sampling Is the procedure likely to yield a representative sample or a biased​ sample? Explain why.     A. The procedure is likely to yield a representative sample because it covers every age group.   B. The procedure is likely to be biased because people from those age groups are not evenly distributed throughout the population.   C. The procedure is likely to yield a biased sample because younger people​ don't know what they want and should be studied separately.   D. The procedure is likely to be representative because 510 people from each age group form a large sample size.

Write up your results as you would see them in a research paper. Be sure that you include the means and standard deviations for each group in your write-up, as well as a sentence or two explaining the results

Hi I am having trouble answering letter D. Thank you.