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х
Suppose X1...X, is an independent and identically distributed sample. It is a Rayleigh
distribution with parameter 0 > 0 and its pdf can be found from:
-x/
021
x)
x > 0. (a) Show E(X) = using integration by parts knowing
.(-e
*
=
fo(t) = 2 *°1203
o
2
that * (- e**(20) = f,(x) and that integrating the right half of the distribution gives
d
dx
=
MM
you 0.5. (b) Determine Omm , the method of moments estimator. (c) Determine l(e), the
log-likelihood function. (d) Determine Omle , the MLE. To do this, s=eto
reparametrize l(0).
use
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WU Interpreting the Nonconformity Control Charts Essay
For this Assignment, review the resources for this week that are specific to attribute control charts. You should focus on ...
WU Interpreting the Nonconformity Control Charts Essay
For this Assignment, review the resources for this week that are specific to attribute control charts. You should focus on mimicking the development of c and u charts as demonstrated in the resources for this week.
The Assignment: (3–4 pages)
Using SPSS and Microsoft Word, complete problems 1 through 5 on pages 330–331 in the Ross textbook. Show all work. Submit both your SPSS and Word files for grading.
Required Readings
Ross, T. K. (2014). Health care quality management: Tools and applications. San Francisco, CA: Jossey-Bass.
Chapter 8, "Statistical Process Control for Monitoring Nonconformities” (pp. 301–332)
U.S. Department of Commerce, National Institute of Standards and Technology. (2016). NIST/SEMATECH e-handbook of statistical methods. Retrieved from http://www.itl.nist.gov/div898/handbook
Chapter 6.3.3, “Attributes Control Charts”
Emmanuel, J. (2015a). SPC 4: c-chart (control chart for number defective). Retrieved from https://www.youtube.com/watch?v=RvEjgsYkTZk
PROBLEMS 1. A hospital introduced hip protectors to reduce the frequency of injury-producing patient falls. The hip protectors were introduced in July. The following table records the number of injury-producing falls from January through December. Create and interpret a c chart for patient falls. Were the hip protectors effective in reducing injury-producing patient falls?
s Month Falls Jan 5 Jul 3 Feb 5 Aug 3 Mar 3 Sep 2 Apr 4 Oct 2 May 2 Nov 3 Jun 2 Dec 3
2. The director of medical records conducts a monthly audit of 50 medical records to iden- tify coding errors. The Chapter 08.xls, Problem 08–02 tab records the data. National sta- tistics indicate that approximately 15% of medical records contain errors, and in the past the director has found multiple errors in a single record. Create a c chart to analyze perfor- mance. Interpret the department’s performance based on your control chart and identify any issues that should be investigated. Is the department doing a good job?
3. The chief medical officer is concerned that the long lengths of stay at her hospital may be the result of missed oxygen treatments. She has enacted a program to reduce the number of missed treatments. The Chapter08.xls, Problem 08–03 tab, records the number of missed oxygen treatments over the last 40 weeks. The improvement program was introduced in week 20. Was the program effective?
4. Implementing regular nursing rounds has been demonstrated to increase patient satisfac- tion and reduce patient falls. A hospital has collected data on ten patients per month over the past 24 months. The first twelve months the hospital did not have a formal rounding system. During the second period nurses were required to make rounds on an hourly basis from 8:00 AM through 8:00 PM and every two hours from 8:00 PM to 8:00 AM. The Chapter 08.xls, Problem 08–04 tab displays the number of call lights received per day for the ten- patient sample. Create a c chart to determine the effect of the rounding system on the use of call lights. Did the rounding program reduce patients’ use of call lights? Are there any issues that should be investigated?
5. To supplement their patient satisfaction survey, End Result Hospital conducts in-depth tele- phone interviews of past patients. The interviews are based on a 1% sample of the completed surveys from the prior month. The sample varies widely due to differences in monthly admis- sions, the rate at which surveys are completed, and the willingness of patients to participate in the telephone interview. The Chapter 08.xls, Problem 08–05 tab records the total number of the patients’ concerns noted by the interviewers. These concerns range from the effective- ness of medical treatment to the cleanliness and comfort of the patient room and ease of parking. The interviewer addresses the same items found on the patient satisfaction survey, solicits additional information for any item on which the patient indicated performance was less than “Good” or “Very Good,” and provides the patient with the opportunity to voice any other concerns. Create a control chart to summarize the results. Are patient concerns stable?
6 pages
Kd M574 Pricing Exam
to 3M’s price changes? Please show support for your answer and enter your statistical results here. 10 points One Answer ...
Kd M574 Pricing Exam
to 3M’s price changes? Please show support for your answer and enter your statistical results here. 10 points One Answer: Based on the observations ...
Walden University Multiple Regression in SPSS & Quantitative Reasoning HW
You
will note that the assignment for this week is similar to the multiple
regression analyses you did in the Quantita ...
Walden University Multiple Regression in SPSS & Quantitative Reasoning HW
You
will note that the assignment for this week is similar to the multiple
regression analyses you did in the Quantitative Reasoning and Analysis
course in weeks 9 and 10. When you conduct your multiple regression
analysis for this assignment you should not turn in a paper you
submitted in an earlier course or use the same variables that you used
to conduct a multiple regression. Please note that SafeAssign will match
your assignment to your submission(s) from the earlier course and it is
not permissible to reuse work from previous courses without specific
permission from your instructor.For this assignment use different variables than you did for previous multiple regression assignments.To prepare for this AssignmentReview this week’s Learning Resources and media program related to multiple regression.Based on the dataset you chose, construct a research question that can be answered with a multiple regression analysis.Write
a 1- to 2-page analysis of your multiple regression results for each
research question. In your analysis, display the data for the output.
Based on your results, provide an explanation of what the implications
of social change might be.Use proper APA format, citations, and referencing for your analysis, research question, and display of output.ReferencesFrankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 12, “Regression and Correlation” (pp. 325-371) (previously read in Week 9 of RSCH 8210)Walden University Library. (2016). Article critique assignment guide. Retrieved from http://academicguides.waldenu.edu/rsch8260/week2assignment
Descriptive statistics, probability, and risk assessment, statistics homework help
Assignment OverviewYou are a consultant who works for the Diligent Consulting Group. In this Case, you are engaged on a co ...
Descriptive statistics, probability, and risk assessment, statistics homework help
Assignment OverviewYou are a consultant who works for the Diligent Consulting Group. In this Case, you are engaged on a consulting basis by Loving Organic Foods. In order to get a better idea of what might have motivated customers’ buying habits you are asked to analyze the ages of the customers who have purchased organic foods over the past 3 months. Past research done by the Diligent Consulting Group has shown that different age groups buy certain products for different reasons. Loving Organic Foods has sent a survey to 200 customers who have previously purchased organic foods, and 124 customers have responded. The survey includes age data of past customers who purchased organic foods in the previous quarter.Case AssignmentUsing Excel, create a frequency distribution (histogram) of the age data that was captured from the survey. You should consider the width of the age categories (e.g., 5 years, 10 years, or other). That is, which age category grouping provides the most useful information? Once you have created this histogram, determine the mean, median, and mode.After you have reviewed the data, write a report to your boss that briefly describes the results that you obtained. Make a recommendation on how this data might be used for marketing purposes. Be sure to conduct adequate research on organic foods industry, organic market analysis, and healthy food industry using IBISWorld database or other databases such as Business Source Complete (EBSCO) and Business Source Complete - Business Searching Interface in our online library. Provide a brief description on the industry background and the consumer changing attitudes and behavior toward healthy lifestyles. Also identify the customer demographics of organic food industry and explain how the customers of Loving Organic Foods are different from this target market.Data: Download the Excel-based data file with the age data of the 124 customers: Data chart for BUS520 Module 1 Case. Use these data in Excel to create your histogram.Assignment ExpectationsExcel AnalysisComplete analysis in Excel using the Histogram function. Check the following video on histogram: https://youtu.be/4eLJGG2Ad30If you are not so familiar with Excel, refer to the following link on Excel training videos: https://support.office.com/en-us/article/Excel-training-9bc05390-e94c-46af-a5b3-d7c22f6990bb?ui=en-US&rs=en-US&ad=US Check the professional market research reports from IBISWorld database to find the industry analysis for your cumulative Session Long Project.IBISWorld Overview (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Forecast (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Data and Sources (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Navigation Tips (n.d.). IBISWorld, Inc., New York, NY.Written ReportLength requirements: 4–5 pages minimum (not including Cover and Reference pages). NOTE: You must submit 4–5 pages of written discussion and analysis. This means that you should avoid use of tables and charts as “space fillers.”Provide a brief introduction to/background of the problem.Provide a brief description of organic food industry and target market characteristics such as their demographics, lifestyles and shopping behaviors.Provide a written analysis that supports your Histogram age groups (bins). Based on your analysis of the histogram data, provide complete and meaningful recommendations as the data relates to Loving Organic Foods’s marketing strategy.Write clearly, simply, and logically. Use double-spaced, black Verdana or Times Roman font in 12 pt. type size.Have an introduction at the beginning to introduce the topics and use keywords as headings to organize the report.Avoid redundancy and general statements such as "All organizations exist to make a profit." Make every sentence count.Paraphrase the facts using your own words and ideas, employing quotes sparingly. Quotes, if absolutely necessary, should rarely exceed five words.Upload both your written report and Excel file to the case 1 Dropbox.Here are some guidelines on how to conduct information search and build critical thinking skills.Emerald Group Publishing. (n.d.). Searching for Information. Retrieved from http://www.emeraldinsight.com/learning/study_skills/skills/searching.htmEmerald Group Publishing. (n.d.). Developing Critical Thinking. Retrieved from http://www.emeraldinsight.com/learning/study_skills/skills/critical_thinking.htm
homework questions
To answer questions 1-3, please read the following: What distribution should be used for hypothesis tests for mean1) Use n ...
homework questions
To answer questions 1-3, please read the following: What distribution should be used for hypothesis tests for mean1) Use normal distribution ifstandard deviation of the population is known andpopulation is normally distributed orstandard deviation of the population known andsample size greater than 302) Use t distribution ifstandard deviation of the population is not known and population is normally distributed orstandard deviation of the population is not known andsample size is greater than 303) Use a nonparametric method or bootstrapping if population is not normally distributed and sample size is less than or equal 30Solve the following to answer questions 4-9The U.S. Mint has a specification that pennies have a mean weight of 2.5 g. A sample of 37 pennies has a mean weight of 2.49910 g and a standard deviation of 0.01648 g. Use a 0.05 significance level to test the claim that this sample is from a population with a mean weight equal to 2.5 g. Do the pennies appear to conform to the specifications of the U.S. Mint? Flag this QuestionQuestion 11 ptsDetermine whether the following hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution, or neither (please make sure that you read the instructions for that quiz, you might find it helpful to answer this question).Claim about IQ scores of statistics instructors:
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WU Interpreting the Nonconformity Control Charts Essay
For this Assignment, review the resources for this week that are specific to attribute control charts. You should focus on ...
WU Interpreting the Nonconformity Control Charts Essay
For this Assignment, review the resources for this week that are specific to attribute control charts. You should focus on mimicking the development of c and u charts as demonstrated in the resources for this week.
The Assignment: (3–4 pages)
Using SPSS and Microsoft Word, complete problems 1 through 5 on pages 330–331 in the Ross textbook. Show all work. Submit both your SPSS and Word files for grading.
Required Readings
Ross, T. K. (2014). Health care quality management: Tools and applications. San Francisco, CA: Jossey-Bass.
Chapter 8, "Statistical Process Control for Monitoring Nonconformities” (pp. 301–332)
U.S. Department of Commerce, National Institute of Standards and Technology. (2016). NIST/SEMATECH e-handbook of statistical methods. Retrieved from http://www.itl.nist.gov/div898/handbook
Chapter 6.3.3, “Attributes Control Charts”
Emmanuel, J. (2015a). SPC 4: c-chart (control chart for number defective). Retrieved from https://www.youtube.com/watch?v=RvEjgsYkTZk
PROBLEMS 1. A hospital introduced hip protectors to reduce the frequency of injury-producing patient falls. The hip protectors were introduced in July. The following table records the number of injury-producing falls from January through December. Create and interpret a c chart for patient falls. Were the hip protectors effective in reducing injury-producing patient falls?
s Month Falls Jan 5 Jul 3 Feb 5 Aug 3 Mar 3 Sep 2 Apr 4 Oct 2 May 2 Nov 3 Jun 2 Dec 3
2. The director of medical records conducts a monthly audit of 50 medical records to iden- tify coding errors. The Chapter 08.xls, Problem 08–02 tab records the data. National sta- tistics indicate that approximately 15% of medical records contain errors, and in the past the director has found multiple errors in a single record. Create a c chart to analyze perfor- mance. Interpret the department’s performance based on your control chart and identify any issues that should be investigated. Is the department doing a good job?
3. The chief medical officer is concerned that the long lengths of stay at her hospital may be the result of missed oxygen treatments. She has enacted a program to reduce the number of missed treatments. The Chapter08.xls, Problem 08–03 tab, records the number of missed oxygen treatments over the last 40 weeks. The improvement program was introduced in week 20. Was the program effective?
4. Implementing regular nursing rounds has been demonstrated to increase patient satisfac- tion and reduce patient falls. A hospital has collected data on ten patients per month over the past 24 months. The first twelve months the hospital did not have a formal rounding system. During the second period nurses were required to make rounds on an hourly basis from 8:00 AM through 8:00 PM and every two hours from 8:00 PM to 8:00 AM. The Chapter 08.xls, Problem 08–04 tab displays the number of call lights received per day for the ten- patient sample. Create a c chart to determine the effect of the rounding system on the use of call lights. Did the rounding program reduce patients’ use of call lights? Are there any issues that should be investigated?
5. To supplement their patient satisfaction survey, End Result Hospital conducts in-depth tele- phone interviews of past patients. The interviews are based on a 1% sample of the completed surveys from the prior month. The sample varies widely due to differences in monthly admis- sions, the rate at which surveys are completed, and the willingness of patients to participate in the telephone interview. The Chapter 08.xls, Problem 08–05 tab records the total number of the patients’ concerns noted by the interviewers. These concerns range from the effective- ness of medical treatment to the cleanliness and comfort of the patient room and ease of parking. The interviewer addresses the same items found on the patient satisfaction survey, solicits additional information for any item on which the patient indicated performance was less than “Good” or “Very Good,” and provides the patient with the opportunity to voice any other concerns. Create a control chart to summarize the results. Are patient concerns stable?
6 pages
Kd M574 Pricing Exam
to 3M’s price changes? Please show support for your answer and enter your statistical results here. 10 points One Answer ...
Kd M574 Pricing Exam
to 3M’s price changes? Please show support for your answer and enter your statistical results here. 10 points One Answer: Based on the observations ...
Walden University Multiple Regression in SPSS & Quantitative Reasoning HW
You
will note that the assignment for this week is similar to the multiple
regression analyses you did in the Quantita ...
Walden University Multiple Regression in SPSS & Quantitative Reasoning HW
You
will note that the assignment for this week is similar to the multiple
regression analyses you did in the Quantitative Reasoning and Analysis
course in weeks 9 and 10. When you conduct your multiple regression
analysis for this assignment you should not turn in a paper you
submitted in an earlier course or use the same variables that you used
to conduct a multiple regression. Please note that SafeAssign will match
your assignment to your submission(s) from the earlier course and it is
not permissible to reuse work from previous courses without specific
permission from your instructor.For this assignment use different variables than you did for previous multiple regression assignments.To prepare for this AssignmentReview this week’s Learning Resources and media program related to multiple regression.Based on the dataset you chose, construct a research question that can be answered with a multiple regression analysis.Write
a 1- to 2-page analysis of your multiple regression results for each
research question. In your analysis, display the data for the output.
Based on your results, provide an explanation of what the implications
of social change might be.Use proper APA format, citations, and referencing for your analysis, research question, and display of output.ReferencesFrankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 12, “Regression and Correlation” (pp. 325-371) (previously read in Week 9 of RSCH 8210)Walden University Library. (2016). Article critique assignment guide. Retrieved from http://academicguides.waldenu.edu/rsch8260/week2assignment
Descriptive statistics, probability, and risk assessment, statistics homework help
Assignment OverviewYou are a consultant who works for the Diligent Consulting Group. In this Case, you are engaged on a co ...
Descriptive statistics, probability, and risk assessment, statistics homework help
Assignment OverviewYou are a consultant who works for the Diligent Consulting Group. In this Case, you are engaged on a consulting basis by Loving Organic Foods. In order to get a better idea of what might have motivated customers’ buying habits you are asked to analyze the ages of the customers who have purchased organic foods over the past 3 months. Past research done by the Diligent Consulting Group has shown that different age groups buy certain products for different reasons. Loving Organic Foods has sent a survey to 200 customers who have previously purchased organic foods, and 124 customers have responded. The survey includes age data of past customers who purchased organic foods in the previous quarter.Case AssignmentUsing Excel, create a frequency distribution (histogram) of the age data that was captured from the survey. You should consider the width of the age categories (e.g., 5 years, 10 years, or other). That is, which age category grouping provides the most useful information? Once you have created this histogram, determine the mean, median, and mode.After you have reviewed the data, write a report to your boss that briefly describes the results that you obtained. Make a recommendation on how this data might be used for marketing purposes. Be sure to conduct adequate research on organic foods industry, organic market analysis, and healthy food industry using IBISWorld database or other databases such as Business Source Complete (EBSCO) and Business Source Complete - Business Searching Interface in our online library. Provide a brief description on the industry background and the consumer changing attitudes and behavior toward healthy lifestyles. Also identify the customer demographics of organic food industry and explain how the customers of Loving Organic Foods are different from this target market.Data: Download the Excel-based data file with the age data of the 124 customers: Data chart for BUS520 Module 1 Case. Use these data in Excel to create your histogram.Assignment ExpectationsExcel AnalysisComplete analysis in Excel using the Histogram function. Check the following video on histogram: https://youtu.be/4eLJGG2Ad30If you are not so familiar with Excel, refer to the following link on Excel training videos: https://support.office.com/en-us/article/Excel-training-9bc05390-e94c-46af-a5b3-d7c22f6990bb?ui=en-US&rs=en-US&ad=US Check the professional market research reports from IBISWorld database to find the industry analysis for your cumulative Session Long Project.IBISWorld Overview (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Forecast (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Data and Sources (n.d.). IBISWorld, Inc., New York, NY.IBISWorld Navigation Tips (n.d.). IBISWorld, Inc., New York, NY.Written ReportLength requirements: 4–5 pages minimum (not including Cover and Reference pages). NOTE: You must submit 4–5 pages of written discussion and analysis. This means that you should avoid use of tables and charts as “space fillers.”Provide a brief introduction to/background of the problem.Provide a brief description of organic food industry and target market characteristics such as their demographics, lifestyles and shopping behaviors.Provide a written analysis that supports your Histogram age groups (bins). Based on your analysis of the histogram data, provide complete and meaningful recommendations as the data relates to Loving Organic Foods’s marketing strategy.Write clearly, simply, and logically. Use double-spaced, black Verdana or Times Roman font in 12 pt. type size.Have an introduction at the beginning to introduce the topics and use keywords as headings to organize the report.Avoid redundancy and general statements such as "All organizations exist to make a profit." Make every sentence count.Paraphrase the facts using your own words and ideas, employing quotes sparingly. Quotes, if absolutely necessary, should rarely exceed five words.Upload both your written report and Excel file to the case 1 Dropbox.Here are some guidelines on how to conduct information search and build critical thinking skills.Emerald Group Publishing. (n.d.). Searching for Information. Retrieved from http://www.emeraldinsight.com/learning/study_skills/skills/searching.htmEmerald Group Publishing. (n.d.). Developing Critical Thinking. Retrieved from http://www.emeraldinsight.com/learning/study_skills/skills/critical_thinking.htm
homework questions
To answer questions 1-3, please read the following: What distribution should be used for hypothesis tests for mean1) Use n ...
homework questions
To answer questions 1-3, please read the following: What distribution should be used for hypothesis tests for mean1) Use normal distribution ifstandard deviation of the population is known andpopulation is normally distributed orstandard deviation of the population known andsample size greater than 302) Use t distribution ifstandard deviation of the population is not known and population is normally distributed orstandard deviation of the population is not known andsample size is greater than 303) Use a nonparametric method or bootstrapping if population is not normally distributed and sample size is less than or equal 30Solve the following to answer questions 4-9The U.S. Mint has a specification that pennies have a mean weight of 2.5 g. A sample of 37 pennies has a mean weight of 2.49910 g and a standard deviation of 0.01648 g. Use a 0.05 significance level to test the claim that this sample is from a population with a mean weight equal to 2.5 g. Do the pennies appear to conform to the specifications of the U.S. Mint? Flag this QuestionQuestion 11 ptsDetermine whether the following hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution, or neither (please make sure that you read the instructions for that quiz, you might find it helpful to answer this question).Claim about IQ scores of statistics instructors:
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