how many different 6 symbol arrangments?
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puna2288
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how many different 6-symbol arrangements can be made if the first 3 must be from the letters x,y,z and the last three must be from the digits 4,5,6 (no repeats)?
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Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
Week 8 assignments
Answer the following questions using the information provided.
Question 1: We have received a set of comments over time o ...
Week 8 assignments
Answer the following questions using the information provided.
Question 1: We have received a set of comments over time on the web. Check if we have improved? Please note that there are no pre- and post-intervention periods and therefore control limits must be calculated from the entire period. You can find the data here
You can find the solution here .
Question 2: The following data show the speed with which Alabama Medical Center's Emergency Room provides a patient who has fractured long bone with pain medication. Examine if the organization has been able to reduce the response time to less than 73 minutes? You can find the data here
Measure Start Date
Measure End Date
Minutes to Pain Medication
Sample
4/1/2013
3/31/2014
78
132
7/1/2013
6/30/2014
68
124
7/1/2013
6/30/2014
68
124
10/1/2013
9/30/2014
72
122
1/1/2014
12/31/2014
76
138
4/1/2014
3/31/2015
85
144
7/1/2014
6/30/2015
86
137
10/1/2014
9/30/2015
95
121
1/1/2015
12/31/2015
99
111
Please use the following peer video as a reference for this question. You can find the solution here .
Peer video question 2 https://www.youtube.com/watch?v=uq49WOuZwEU&feature=youtu.be
Question 3: In Hospital Administration Programs, time to adverse events is typically taught in courses on quality. It also may be referred to in courses on strategy, if the hospital is focused on competing based on quality. Hospital Compare reports the measure OP_21. The Score field provides time (in minutes) from emergency department arrival to initial oral, intranasal or parenteral pain medication administration for the patients with a diagnosis of a long bone fracture. The field Sample provides the number of patients used to calculate the time to pain medication. In this assignment, we ask you to track the performance of "Inova Fairfax Medical Center" over two years. Focus on the Score variable.
Download Hospital Compare data; these years include data from 2013 to 2015. Merge the file " HQI_HOSP_TimelyEffectiveCare" across all the databases that you have downloaded. Select measure ID: "OP_21”. Construct a control chart showing time between pain medications. The data are reported for a range of time; assume that the data are reported for the midpoint of the range. Download data using the following files, additionally include other data (directly from Hospital Compare) for files after 2016:
2016-11-10
2016-08-10
2016-05-04
2015-12-10
2015-10-08
2015-07-16
2015-05-06
2015-04-16
2015-01-22
Construct both a Tukey and a time-between control chart for the data. For the time-between control chart assume that data points above median exceed and observations below median are less than the national average.
You can find the solution here .
Question 4: Analyze the following data using Tukey and Time-In-Between (more than 30 minutes of exercise considered a successful day) charts. Produce 3 charts and discuss if the findings from the 3 charts are similar. To decide if the exercise time has changed, rely on the control chart with the smallest difference between upper and control limit. Download the data here
You can find the solution here .
Instructions
In order to complete this assignment you must submit an Excel file with each question answered in a separate sheet. Copy both the question prompts and your answers to the file. All calculations should be done by formulas and not as fixed values.
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I need an example of a 2- to 3-page critique of the research you found in the attached article. The questions that need to be addressed are:Did the authors construct scales in a clear, concise manner?Were the authors’ explanations clear regarding the reliability and validity of their measures?What information did the authors provide about establishing reliability and validity?
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Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
Week 8 assignments
Answer the following questions using the information provided.
Question 1: We have received a set of comments over time o ...
Week 8 assignments
Answer the following questions using the information provided.
Question 1: We have received a set of comments over time on the web. Check if we have improved? Please note that there are no pre- and post-intervention periods and therefore control limits must be calculated from the entire period. You can find the data here
You can find the solution here .
Question 2: The following data show the speed with which Alabama Medical Center's Emergency Room provides a patient who has fractured long bone with pain medication. Examine if the organization has been able to reduce the response time to less than 73 minutes? You can find the data here
Measure Start Date
Measure End Date
Minutes to Pain Medication
Sample
4/1/2013
3/31/2014
78
132
7/1/2013
6/30/2014
68
124
7/1/2013
6/30/2014
68
124
10/1/2013
9/30/2014
72
122
1/1/2014
12/31/2014
76
138
4/1/2014
3/31/2015
85
144
7/1/2014
6/30/2015
86
137
10/1/2014
9/30/2015
95
121
1/1/2015
12/31/2015
99
111
Please use the following peer video as a reference for this question. You can find the solution here .
Peer video question 2 https://www.youtube.com/watch?v=uq49WOuZwEU&feature=youtu.be
Question 3: In Hospital Administration Programs, time to adverse events is typically taught in courses on quality. It also may be referred to in courses on strategy, if the hospital is focused on competing based on quality. Hospital Compare reports the measure OP_21. The Score field provides time (in minutes) from emergency department arrival to initial oral, intranasal or parenteral pain medication administration for the patients with a diagnosis of a long bone fracture. The field Sample provides the number of patients used to calculate the time to pain medication. In this assignment, we ask you to track the performance of "Inova Fairfax Medical Center" over two years. Focus on the Score variable.
Download Hospital Compare data; these years include data from 2013 to 2015. Merge the file " HQI_HOSP_TimelyEffectiveCare" across all the databases that you have downloaded. Select measure ID: "OP_21”. Construct a control chart showing time between pain medications. The data are reported for a range of time; assume that the data are reported for the midpoint of the range. Download data using the following files, additionally include other data (directly from Hospital Compare) for files after 2016:
2016-11-10
2016-08-10
2016-05-04
2015-12-10
2015-10-08
2015-07-16
2015-05-06
2015-04-16
2015-01-22
Construct both a Tukey and a time-between control chart for the data. For the time-between control chart assume that data points above median exceed and observations below median are less than the national average.
You can find the solution here .
Question 4: Analyze the following data using Tukey and Time-In-Between (more than 30 minutes of exercise considered a successful day) charts. Produce 3 charts and discuss if the findings from the 3 charts are similar. To decide if the exercise time has changed, rely on the control chart with the smallest difference between upper and control limit. Download the data here
You can find the solution here .
Instructions
In order to complete this assignment you must submit an Excel file with each question answered in a separate sheet. Copy both the question prompts and your answers to the file. All calculations should be done by formulas and not as fixed values.
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