scenario statistics

This week, you have learned about t-tests and ANOVA and will apply what you have learned in the evaluation of several research scenarios. For this task, you will read each research scenario and answer the questions regarding each one.

Research Scenario 1
A researcher is interested in the effects of a new weight loss supplement. Participants in this double-blind study are randomly assigned to either a group that receives the new supplement or a group that receives a placebo. Participants are weighed before starting the program. After 6 weeks of taking either the new supplement or the placebo, participants return to the lab to be weighed.

        Provide the appropriate null and alternative hypotheses.
        Determine which type of analysis would be appropriate to answer this research question. Be specific and support your answer using the textbook or other course materials.
        Name the independent and dependent variables used in the analysis. What are the levels of the independent variable?
        Indicate the levels of measurement for each variable.
        Describe the Type I error for this study.
        Describe the Type II error for this study.

Research Scenario 2
A researcher is interested in whether certain memory strategies help people to remember information. This researcher employs students from a local college, and then randomly assigns them to one of three groupsthe visualization group, the mnemonic technique group, and the rote repetition group. Participants in each group receive an hour of instruction regarding how to use the particular technique to remember lists of words. After the instruction, all participants are presented with a list of 60 words that they are instructed to remember. The words are presented one-at-a time on a computer screen. After the last word is presented, all participants are instructed to recall as many words as possible by writing them on a blank sheet of paper. All participants are given 10 minutes to recall the words.

        Provide the appropriate null and alternative hypotheses.
        Indicate which type of analysis would be appropriate to answer this research question. Be specific and support your answer using the textbook or other course materials.
        Name the independent and dependent variables used in the analysis. What are the levels of the independent variable?
        Indicate the levels of measurement for each variable.
        Describe the Type I error for this study.
        Describe the Type II error for this study

Research Scenario 3
A local manufacturing company is interested in determining whether their employees are as happy with their jobs as other employees. The manufacturing company asked the workers, who volunteered to participate, to rate their happiness at work on a scale from 1 to 10 where 1 was not at all happy and 10 was extremely happy. The manufacturing company found that the mean happiness rating for their employees is 7.3. In the general population of workers in the United States, the mean happiness rating is 6.

        Provide the appropriate null and alternative hypotheses.
        Determine which type of analysis would be appropriate to answer this research question. Be specific. Please support your answer using the textbook or other course materials.
        Name the variables used in the analysis.
        What are the levels of measurement for each variable?
        Describe the Type I error for this study.
        Describe the Type II error for this study

Length: 1-2 pages

data set graphs

This assignment has two parts, which will be submitted in one document.

For this task, you will calculate the mean, median, and mode for a fictitious data set. These data represent the results of a fictitious study, which investigates whether a new drug (Drug A) is more effective than a placebo (i.e., an inactive substance) in the treatment of depression. The researcher is also interested in whether the effects of the drug varies by age so participants between the ages of 18-39 years were recruited (the younger adult group), and participants between the ages of 60-80 years were recruited (the older adult group). Participants were randomly assigned to either the placebo group or to the drug group (Drug A). All participants were first screened to ensure they met the criteria for depression. After 2 months of taking either the placebo or Drug A, participants returned to the lab and completed a measure of depressive symptomology called the Beck Depression Inventory-II (BDI-II).

Part 1:

For the first part of this assignment, create a table, using “attachment1” showing the mean, median, and mode for each participant group and each drug condition on the score for the BDI-II. The data for each participant are contained in the Participant Data worksheet in the “Data1” File. You may use Excel or you can calculate these values by hand.
                           

Part 2:

For this part of the assignment, create a bar chart in Excel. You will need the Summary Data for Graph worksheet from the Data 1 file. Remember, the bar chart shows the means for each condition rather than individual participant data, and the data in this worksheet have been organized accordingly.

For the steps regarding how to create the bar graph, review the steps in Creating a Bar Graph in Excel 2016 or Creating a Bar Graph in Excel 2010, located under your weekly resources. These instructions should also work with other versions of Excel.

You should copy and paste the graph you create into a Word document, along with your table showing the mean, median, and mode.

Length:1-2 pages

ESL EFL Teaching Lessons Speaking Writing Reading

I have a number of lesson plans I would like created for an  English as a second language/ Foreign Language course! This would constitute a few lesson plans. It would  be a really basic worksheet style/ essay style showing simply that you had the ability to teach such a course!

Police Officer Oral Presentation/Speech

All instructions will be attached. In the Oral board Prompt PDF please pay attention to the instructions, topic, paper format, and the written paper/presentation evaluation. They need to be spot on and effective. I have also attached the core values of the Richland police department (RPD) including their mission and vision for your use in your essay. Please correlate to those in the paper. The speech/oral presentation/paper must be a maximum of 4 pages, try to get close to that. The speech will be addressed to the city council of Richland. Just so you now city council includes: Mayor of that city and the council members. There in charge of how the Richland police department operates and we need to impress them. Let me know if any questions, again READ the prompt and TOPIC on what to write about. Any question please ask, because last thing I want is you finishing the writing and its not even towards the topic.