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Sections 4.2-4.5 online algebra assignment
Online work for McGraw Hill Connect. Involves solving, calculating and plotting trig, log, and exponential functions.
Sections 4.2-4.5 online algebra assignment
Online work for McGraw Hill Connect. Involves solving, calculating and plotting trig, log, and exponential functions.
Does the OTR time appear to be stable, statistics homework help
The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations fo ...
Does the OTR time appear to be stable, statistics homework help
The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations for the last 76 installations (from first to last). OTR is the time it takes from an order being placed until the system is installed and we receive payment (remittance). Because this company does business internationally, it also notes the country of installation using a country code. This code is listed in the first column.Use the date in table above and answer the following questions in the space provided below:Does the OTR time appear to be stable? Why or why not?If you were to use a control chart to evaluate stability, which chart would you use? Why?What can you learn about the distribution of the installation process? Does it appear that the country has an impact on installation time? Why or why not?
DAT 565 Phoenix International Expansion & Call Center Operations Discussion
Part 1: Globalization and Information Research Context: Companies that perform well in their country of origin usually c ...
DAT 565 Phoenix International Expansion & Call Center Operations Discussion
Part 1: Globalization and Information Research Context: Companies that perform well in their country of origin usually consider expanding operations in new international markets. Deciding where, how, and when to expand is not an easy task, though. Many issues need to be considered before crafting an expansion strategy and investing significant resources to this end, including: the level of demand to be expected for the company’s products/services presence of local competitors the regulatory, economic, demographic, and political environments Carefully researching and analyzing these and other factors can help mitigate the inherent risk associated with an overseas expansion strategy, thus increasing the likelihood of success. As a data analyst in your company’s business development department, you’ve been tasked with the responsibility of recommending countries for international expansion. You’ll write a report to the company’s executive team with your research, analysis, and recommendations. https://hbr.org/2018/10/how-netflix-expanded-to-19...Instructions: Write a 525-word summary covering the following items: According to the article listed above, what were the most important strategic moves that propelled Netflix’s successful international expansion? The article mentions investments in big data and analytics as one of the elements accompanying the second phase of overseas expansion. Why was this investment important? What type of information did Netflix derive from the data collected? According to the article, what is exponential globalization? Not all international expansion strategies are a resounding success, however. Research an article or video that discusses an instance in which an American company’s expansion efforts in another country failed. According to the article/video you selected, what were the main reasons for this failure? Do you agree with this assessment? Explain some of the reasons why certain companies’ expansion plans have failed in the past. Part 2: Hypothesis testing Context: Your organization is evaluating the quality of its call center operations. One of the most important metrics in a call center is Time in Queue (TiQ), which is the time a customer has to wait before he/she is serviced by a Customer Service Representative (CSR). If a customer has to wait for too long, he/she is more likely to get discouraged and hang up. Furthermore, customers who have to wait too long in the queue typically report a negative overall experience with the call. You’ve conducted an exhaustive literature review and found that the average TiQ in your industry is 2.5 minutes (150 seconds). Another important metric is Service Time (ST), also known as Handle Time, which is the time a CSR spends servicing the customer. CSR’s with more experience and deeper knowledge tend to resolve customer calls faster. Companies can improve average ST by providing more training to their CSR’s or even by channeling calls according to area of expertise. Last month your company had an average ST of approximately 3.5 minutes (210 seconds). In an effort to improve this metric, the company has implemented a new protocol that channels calls to CSR’s based on area of expertise. The new protocol (PE) is being tested side-by-side with the traditional (PT) protocol. Instructions: Access the Call Center Waiting Time file. Each row in the database corresponds to a different call. The column variables are as follows: ProtocolType: indicates protocol type, either PT or PEQueueTime: Time in Queue, in secondsServiceTime: Service Time, in secondsPerform a test of hypothesis to determine whether the average TiQ is lower than the industry standard of 2.5 minutes (150 seconds). Use a significance level of α=0.05. Evaluate if the company should allocate more resources to improve its average TiQ. Perform a test of hypothesis to determine whether the average ST with service protocol PE is lower than with the PT protocol. Use a significance level of α=0.05. Assess if the new protocol served its purpose. (Hint: this should be a test of means for 2 independent groups.) Submit your calculations and a 175-word summary of your conclusions.
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste, statistics homework help
2a. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sampl ...
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste, statistics homework help
2a. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6-months. The mean number of cavities at their next checkup is 1.5. In the general population, the mean number of cavities at a 6-month check-up is 1.73 (0=1.12)Is this a one or two-tailed test?What are the H0 and Ha for this study?Compute Zobt-What is Zev?4a. Henry preformed a two-tailed test for an experiment in which N-24. He could not find his table of t critical values, but he remembered the tcv at df=13. He decided to compare his tobtwith this tcv. Is he more likely to make a Type I or a Type II error in this situation?6a. A researcher hypothesis that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, u=58. A random sample of 14 individuals who listen to classical music is given the same test. Their scores on the test are 52,59,63,65,58,55,62,63,53,59,57,61,60,59.Is this a one or two-tailed test?What are the Ho and Ha for this study?Compute t-obt-What is tcv?Should Ho be rejected? What should the researcher conclude?Determine the 95% confidence interval for the population mean, based on the sample mean.8a. A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers random sample of the 20 individuals who live in California and finds that the number who exercise regularly is 31 out of 120.What is the obt?What is the df for this test?What is the cv?What conclusion should be drawn from these results?The researcher in exercise 2 decides to conduct the same study using a within-participants design to control for differences in cognitive ability. He selects a random sample of subjects and has them study different material of equal difficulty in both the music and no music conditions. The study is completely counterbalanced to control for order effects. The data appear next. As before, they are measured on an interval-ratio scale and are normally distributed; he believes that studying under quiet conditions will lead to better performance.MUSIC NO MUSIC7 76 85 76 78 98 8What statistical test should be used to analyze these data?Identify Ho and Ha for this study.Conduct the appropriate analysis.Should Ho be rejected? What should the researcher conclude?If significant, compute and interpret the effect size.If significant, draw a graph representing the data.Determine 95% confidence interval.Researchers at a food company are interested in how a new spaghetti sauce made from green tomatoes (and green in color) will compare to their traditional red spaghetti sauce. They are worried that the green color will adversely affect the tastiness scores. They randomly assign subjects to either the green or the red sauce condition. Participants indicate the tastiness of the sauce on a 10-point scale. Tastiness scores tend to be skewed. The scores are as follows.Red Sauce Green Sauce7 46 59 610 86 77 68 9What statistical test should be used to analyze these data?Identify Ho and Ha for this study.Conduct the appropriate analysis.Should Ho be rejected? What should the researcher conclude?You notice in your introductory psychology class that women tend to sit up front, and more men sit in the back. To determine whether this difference is significant, you collect data on the seating preferences for the students in your class. The data follow. Men WomenFront of the Room 15 27Back of the Room 32 19What is the obt?What is the dffor this test?What is the cv?What conclusion should be drawn from these results?What are degrees of freedom? How are the calculated?What do inferential statistics allow you to infer?What is the General Linear Model (GLM)? Why does it matter?Compare and contrast parametric and nonparametric statistics. Why and in what types of cases would you use one over the other?Why is it important to pay attention to the assumptions of the statistical test? What are your options if your dependent variable scores are not normally distributed?
Probability, Sampling Distribution, and Confidence, statistics homework help
Part 1Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you ...
Probability, Sampling Distribution, and Confidence, statistics homework help
Part 1Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources.From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.Once you visually display each variable, copy and paste your output into your Word document.For this Part 1 Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Use appropriate APA format. Refer to the APA manual for appropriate citation.Part 2open the Afrobarometer dataset or the High School Longitudinal Study dataset from your Part 1 of your Assignment in Week 2.Choose the same two variables you chose from your Part 1 Assignment and perform the appropriate descriptive analysis of the data.Once you perform your descriptive analysis, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Part 2 Assignment:Write a 2- to 3-paragraph analysis of your descriptive analysis results and include a copy and paste your output from your analysis into your final document. Use appropriate APA format, citations and referencing. Refer to the APA manual for appropriate citation.Part 3open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you chose) from Week 2.Choose an appropriate variable from Parts 1 and 2 of this Assignment and calculate a confidence interval in SPSS.Once you perform your confidence interval, review Chapter 5 and 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Part 3 Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Use appropriate APA format. Refer to the APA manual for appropriate citation.
15 pages
Math 107 Final Examination
This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use ...
Math 107 Final Examination
This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. You must ...
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Sections 4.2-4.5 online algebra assignment
Online work for McGraw Hill Connect. Involves solving, calculating and plotting trig, log, and exponential functions.
Sections 4.2-4.5 online algebra assignment
Online work for McGraw Hill Connect. Involves solving, calculating and plotting trig, log, and exponential functions.
Does the OTR time appear to be stable, statistics homework help
The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations fo ...
Does the OTR time appear to be stable, statistics homework help
The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations for the last 76 installations (from first to last). OTR is the time it takes from an order being placed until the system is installed and we receive payment (remittance). Because this company does business internationally, it also notes the country of installation using a country code. This code is listed in the first column.Use the date in table above and answer the following questions in the space provided below:Does the OTR time appear to be stable? Why or why not?If you were to use a control chart to evaluate stability, which chart would you use? Why?What can you learn about the distribution of the installation process? Does it appear that the country has an impact on installation time? Why or why not?
DAT 565 Phoenix International Expansion & Call Center Operations Discussion
Part 1: Globalization and Information Research Context: Companies that perform well in their country of origin usually c ...
DAT 565 Phoenix International Expansion & Call Center Operations Discussion
Part 1: Globalization and Information Research Context: Companies that perform well in their country of origin usually consider expanding operations in new international markets. Deciding where, how, and when to expand is not an easy task, though. Many issues need to be considered before crafting an expansion strategy and investing significant resources to this end, including: the level of demand to be expected for the company’s products/services presence of local competitors the regulatory, economic, demographic, and political environments Carefully researching and analyzing these and other factors can help mitigate the inherent risk associated with an overseas expansion strategy, thus increasing the likelihood of success. As a data analyst in your company’s business development department, you’ve been tasked with the responsibility of recommending countries for international expansion. You’ll write a report to the company’s executive team with your research, analysis, and recommendations. https://hbr.org/2018/10/how-netflix-expanded-to-19...Instructions: Write a 525-word summary covering the following items: According to the article listed above, what were the most important strategic moves that propelled Netflix’s successful international expansion? The article mentions investments in big data and analytics as one of the elements accompanying the second phase of overseas expansion. Why was this investment important? What type of information did Netflix derive from the data collected? According to the article, what is exponential globalization? Not all international expansion strategies are a resounding success, however. Research an article or video that discusses an instance in which an American company’s expansion efforts in another country failed. According to the article/video you selected, what were the main reasons for this failure? Do you agree with this assessment? Explain some of the reasons why certain companies’ expansion plans have failed in the past. Part 2: Hypothesis testing Context: Your organization is evaluating the quality of its call center operations. One of the most important metrics in a call center is Time in Queue (TiQ), which is the time a customer has to wait before he/she is serviced by a Customer Service Representative (CSR). If a customer has to wait for too long, he/she is more likely to get discouraged and hang up. Furthermore, customers who have to wait too long in the queue typically report a negative overall experience with the call. You’ve conducted an exhaustive literature review and found that the average TiQ in your industry is 2.5 minutes (150 seconds). Another important metric is Service Time (ST), also known as Handle Time, which is the time a CSR spends servicing the customer. CSR’s with more experience and deeper knowledge tend to resolve customer calls faster. Companies can improve average ST by providing more training to their CSR’s or even by channeling calls according to area of expertise. Last month your company had an average ST of approximately 3.5 minutes (210 seconds). In an effort to improve this metric, the company has implemented a new protocol that channels calls to CSR’s based on area of expertise. The new protocol (PE) is being tested side-by-side with the traditional (PT) protocol. Instructions: Access the Call Center Waiting Time file. Each row in the database corresponds to a different call. The column variables are as follows: ProtocolType: indicates protocol type, either PT or PEQueueTime: Time in Queue, in secondsServiceTime: Service Time, in secondsPerform a test of hypothesis to determine whether the average TiQ is lower than the industry standard of 2.5 minutes (150 seconds). Use a significance level of α=0.05. Evaluate if the company should allocate more resources to improve its average TiQ. Perform a test of hypothesis to determine whether the average ST with service protocol PE is lower than with the PT protocol. Use a significance level of α=0.05. Assess if the new protocol served its purpose. (Hint: this should be a test of means for 2 independent groups.) Submit your calculations and a 175-word summary of your conclusions.
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste, statistics homework help
2a. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sampl ...
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste, statistics homework help
2a. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6-months. The mean number of cavities at their next checkup is 1.5. In the general population, the mean number of cavities at a 6-month check-up is 1.73 (0=1.12)Is this a one or two-tailed test?What are the H0 and Ha for this study?Compute Zobt-What is Zev?4a. Henry preformed a two-tailed test for an experiment in which N-24. He could not find his table of t critical values, but he remembered the tcv at df=13. He decided to compare his tobtwith this tcv. Is he more likely to make a Type I or a Type II error in this situation?6a. A researcher hypothesis that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, u=58. A random sample of 14 individuals who listen to classical music is given the same test. Their scores on the test are 52,59,63,65,58,55,62,63,53,59,57,61,60,59.Is this a one or two-tailed test?What are the Ho and Ha for this study?Compute t-obt-What is tcv?Should Ho be rejected? What should the researcher conclude?Determine the 95% confidence interval for the population mean, based on the sample mean.8a. A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers random sample of the 20 individuals who live in California and finds that the number who exercise regularly is 31 out of 120.What is the obt?What is the df for this test?What is the cv?What conclusion should be drawn from these results?The researcher in exercise 2 decides to conduct the same study using a within-participants design to control for differences in cognitive ability. He selects a random sample of subjects and has them study different material of equal difficulty in both the music and no music conditions. The study is completely counterbalanced to control for order effects. The data appear next. As before, they are measured on an interval-ratio scale and are normally distributed; he believes that studying under quiet conditions will lead to better performance.MUSIC NO MUSIC7 76 85 76 78 98 8What statistical test should be used to analyze these data?Identify Ho and Ha for this study.Conduct the appropriate analysis.Should Ho be rejected? What should the researcher conclude?If significant, compute and interpret the effect size.If significant, draw a graph representing the data.Determine 95% confidence interval.Researchers at a food company are interested in how a new spaghetti sauce made from green tomatoes (and green in color) will compare to their traditional red spaghetti sauce. They are worried that the green color will adversely affect the tastiness scores. They randomly assign subjects to either the green or the red sauce condition. Participants indicate the tastiness of the sauce on a 10-point scale. Tastiness scores tend to be skewed. The scores are as follows.Red Sauce Green Sauce7 46 59 610 86 77 68 9What statistical test should be used to analyze these data?Identify Ho and Ha for this study.Conduct the appropriate analysis.Should Ho be rejected? What should the researcher conclude?You notice in your introductory psychology class that women tend to sit up front, and more men sit in the back. To determine whether this difference is significant, you collect data on the seating preferences for the students in your class. The data follow. Men WomenFront of the Room 15 27Back of the Room 32 19What is the obt?What is the dffor this test?What is the cv?What conclusion should be drawn from these results?What are degrees of freedom? How are the calculated?What do inferential statistics allow you to infer?What is the General Linear Model (GLM)? Why does it matter?Compare and contrast parametric and nonparametric statistics. Why and in what types of cases would you use one over the other?Why is it important to pay attention to the assumptions of the statistical test? What are your options if your dependent variable scores are not normally distributed?
Probability, Sampling Distribution, and Confidence, statistics homework help
Part 1Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you ...
Probability, Sampling Distribution, and Confidence, statistics homework help
Part 1Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources.From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.Once you visually display each variable, copy and paste your output into your Word document.For this Part 1 Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Use appropriate APA format. Refer to the APA manual for appropriate citation.Part 2open the Afrobarometer dataset or the High School Longitudinal Study dataset from your Part 1 of your Assignment in Week 2.Choose the same two variables you chose from your Part 1 Assignment and perform the appropriate descriptive analysis of the data.Once you perform your descriptive analysis, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Part 2 Assignment:Write a 2- to 3-paragraph analysis of your descriptive analysis results and include a copy and paste your output from your analysis into your final document. Use appropriate APA format, citations and referencing. Refer to the APA manual for appropriate citation.Part 3open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you chose) from Week 2.Choose an appropriate variable from Parts 1 and 2 of this Assignment and calculate a confidence interval in SPSS.Once you perform your confidence interval, review Chapter 5 and 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Part 3 Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Use appropriate APA format. Refer to the APA manual for appropriate citation.
15 pages
Math 107 Final Examination
This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use ...
Math 107 Final Examination
This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. You must ...
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