Give one disadvantage of conducting a statistical study using a convenience sample.
ANSWER:
Where the most obvious criticism about convenience sampling is sampling bias
-the sample is not representative of the entire population.
-This may be the biggest disadvantage when using a convenience sample because it leads to more problems and criticisms.
Give one disadvantage of conducting a statistical study using a convenience sample.
Design your own study using one of the following statistical tests: one-sample t-test, paired samples t-test, independent samples t-test, or ANOVA. Give (1) your sample, (2) research question, (3) the appropriate test with the null and research hypotheses, and (4) the two variables, including (a) how you would measure both variables and (b) each variable’s level of measurement. Be creative. Do not include data in your response.
give me one example of a protocol order,one advantage of a Protocol Order, one disadvantage or safety concern with using protocol order. give me one example of a standing order,one advantage of a standing Order, one disadvantage or safety concern with using standing order. give me one example of a preprinted order set,one advantage of a Preprinted order set, one disadvantage or safety concern with using preprinted order sets.
If a research team increases the sample size for a study, the power of their statistical tests will: a) stay the same, b) decrease, c) increase
3. Experimental and observational statistical studies
3. Experimental and observational statistical studies Aa Aa In each of the following situations, data are obtained by conducting a statistical study. Classify each statistical study as experimental or correlational. Statistical Study The manager of a tuna canning factory is interested in finding out which set of machine settings results in a smaller variance of the fill weight of the tuna cans. She uses one set of machine settings for the day shift and...
The mean checkout time for all customers at Corner Convenience Store is to be estimated using mean checkout time for 75 randomly selected customers. Match column II with the statistical term in column I Column II Column I a) The 75 customers b) The mean time for all customers c) 2 minutes, one customer's checkout Data value Data set Experiment Parameter Population Sample Statistic Variable time d) the mean time for the 75 customers e) all customers at Corner Convenience...
You are conducting a study among diabetic patients to see which type of exercise may benefit their blood glucose levels the most. You will split your patients in to 3 groups (cardio, cardio + weights, and control/no exercise) and after the intervention measure their blood glucose levels and compare the average glucose level between the 3 groups. Which statistical analysis is best suited for the scenario? Select one: Independent t-test Paired t-test One sample t-test ANOVA
a) Explain one advantage and one disadvantage of a hospital-based case-control study compared with a population-based case-control study? b) What is a ‘point-source’ outbreak, and how does it differ from a ‘person-to-person’ outbreak? c) Explain why it is important to use a structured questionnaire to obtain information from cases and controls in a case-control study?
In a population proportion study, you can decrease the sample size by: decreasing alpha conducting a pilot study decreasing E assuming p-hat to be 0.25
What factor is directly related to the statistical power of an analytic study? The choice of the control group Confounding The epidemiologic measure calculated Sample size More than one answer listed
. A researcher is conducting a study on death awareness and recruits a sample of 50 participants, asking them to report how much money they would award someone who risked their life to stop an assault. What type of graph could you use to display this data? (Choose ALL that apply) a. bar graph b. histogram c. frequency polygon