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(1 pt) Use the graph given below to find the value of
f(x) dx.
Answer:
f(x)
3
2
x
2
3
5
6
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STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
I need help writing an FOUR page paper in APA.
Option #1: Critical Thinking: Quality at A1 Hotels A1 Hotels operates luxury hotels throughout the world. Recently, motiva ...
I need help writing an FOUR page paper in APA.
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PUBH 8545 Big Data and Health Care Research Paper
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A popular U.S. automobile manufacturer has 10,000 dealerships located throughout the country. The automobile manufacturer ...
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STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And B ...
STAT Assignment
Solve the following questions:
Find the mean, mod, median, and standard deviation of the following data. And Based on these results, check whether the value of 10 is usual?
5, 6, 7, 8, 9,8,7,8
_______________________________________________________
2. Pre-Employment Drug Screening Results are shown in the following Table:
Positive Test Result
Negative Test Result
Subject Uses Drugs
8
(True Positive)
2
(False Negative)
Subject is not a Drug User
10
(False Positive)
180
(True Negative)
If 1 of the 200 test subjects is randomly selected, find the probability that the subject had a positive test result, given that the subject actually uses drugs. That is,
find (positive test result ? subject uses drugs).
If 1 of the 200 test subjects is randomly selected, find the probability that the subject actually uses drugs, given that he or she had a positive test result. That is,
find ( subject uses drugs ? positive test result ).
___________________________________________________
3. This is observation from previous years about the impact of students working while they are enrolled in classes, due to students too much work, they are spending less time on their classes. First, the observer need to find out, on average, how many hours a week students are working. They know from previous studies that the standard deviation of this variable is about 5 hours. A survey of 200 students provides a sample mean of 7.10 hours worked. What is a 95% confidence interval based on this sample?
I need help writing an FOUR page paper in APA.
Option #1: Critical Thinking: Quality at A1 Hotels A1 Hotels operates luxury hotels throughout the world. Recently, motiva ...
I need help writing an FOUR page paper in APA.
Option #1: Critical Thinking: Quality at A1 Hotels A1 Hotels operates luxury hotels throughout the world. Recently, motivated by some incidents that appeared in the news, they have been concerned about the quality of service. The company has been giving the following survey to its clients after their stay:Any customer who answered “Poor” to at least one of the three questions up above is considered to be “dissatisfied.” Traditionally, 40% of customers have been dissatisfied.A1 Hotels would like to study customer satisfaction. Therefore, 200 survey responses were recently chosen at random for analysis. The complete data set is in the file named Hotels.Managerial ReportPrepare a report (see below) for A1 Hotels that summarizes your assessment of customer satisfaction. Be sure to include the following seven items in your report.Write a report that adheres to the Written Assignment Requirements under the heading “Expectations for CSU-Global Written Assignments” found in the CSU-Global Guide to Writing and APA Requirements (Links to an external site.)Links to an external site.. As with all written assignments at CSU-Global, you should have in-text citations and a reference page. An example paper is provided in the MTH410 Guide to Writing with Statistics. (link provided in the Modules tab)Submit your Excel file in addition to your report.Requirements:
7 pages
Statistics Paper
Conducting surveys and gathering data is a meticulous, but relatively straightforward endeavor. Nevertheless, the issue of ...
Statistics Paper
Conducting surveys and gathering data is a meticulous, but relatively straightforward endeavor. Nevertheless, the issue of how various kinds of data ...
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STAT2020 Confidence intervals Sigma known and Sigma unknown homework. 15 problems per assignment. Due by tomorrow morning ...
Math homework on Mymathlab.com (7.1, 7.2, 7.2)
STAT2020 Confidence intervals Sigma known and Sigma unknown homework. 15 problems per assignment. Due by tomorrow morning 10AM eastern time.
PUBH 8545 Big Data and Health Care Research Paper
With advances in medical-records management and the ability to store massive amounts of data, opportunities for analyzing ...
PUBH 8545 Big Data and Health Care Research Paper
With advances in medical-records management and the ability to store massive amounts of data, opportunities for analyzing health information have grown in almost unimaginable proportions in the past decade. “Simple” databases with thousands of fields now seem quaint and almost irrelevant, as “big data” appears on the horizon as the emerging answer to many health-related data questions.However, the concept of big data has as many detractors as supporters, and arguments range from big data being the answer to reducing costs and improving health care, to big data potentially leading to discrimination and total government or corporate control.For this Discussion, you will investigate how big data have been applied to health care, and you will consider the potential use of big data by medium and small local health jurisdictions.To prepare:Select a published article on big data and health care from the Walden Library that discusses trends, potential use, or issues related to using big data in health care.Post analysis of the article you selected. Include the following in your post:A brief description of the published article you selected, including:research question,dataset used, andsource of the data.An explanation of your position on the use of big data for health care. Do you think that analyzing and using big data in health care can provide crucial answers and lead to great innovation and breakthroughs?To what extent do you think that privacy and data security concerns and the potential misuse of data outweigh the potential advantages? Justify your position.Using examples, describe how local health authorities can use secondary data sources in their jurisdictions.Support your post based on the Learning Resources and current literature. Use APA formatting for your Discussion and to cite your resources. ResourcesLee, C., Famoye, F., Shelden, B., & Brown, A. (n.d.a). Data manipulation. SPSS On-Line Training Workshop. Retrieved from http://calcnet.mth.cmich.edu/org/spss/data_manipulation.htmHellerstein, J. M. (2008). Quantitative data cleaning for large databases. Retrieved from http://db.cs.berkeley.edu/jmh/papers/cleaning-unec...
STAT 216-801Car Dealerships
A popular U.S. automobile manufacturer has 10,000 dealerships located throughout the country. The automobile manufacturer ...
STAT 216-801Car Dealerships
A popular U.S. automobile manufacturer has 10,000 dealerships located throughout the country. The automobile manufacturer has multiple brands within its portfolio: a value brand that caters to younger clientele, a moderate brand that caters to middle class customers and finally, a premium brand which is marketed to wealthy clientele. The company's leadership, located at corporate headquarters, is very interested in the relationship between the median salary of potential customers and the company's revenue. Specifically, the company is concerned that if potential customers' salaries continue to not increase in the future, the company's revenue will remain stagnant, which will in turn steer away potential investors and shareholders. The company's research department recently collected data for analysis in order to support leadership's upcoming discussion with shareholders and investors about the company's future revenue forecast. Sales figures from a random sample of 1000 dealerships were collected. The research division also conducted statistical analysis, using data provided by the Bureau of Labor and Statistics, to calculate the median salary of people living in the vicinity of these 1,000 dealerships. The Dealership Number, State, Median Salary, Annual Sales, Number of Vehicles Sold, Square Footage and Quality Award Winner data were collected for these 1000 dealerships.StatCrunch Data Set1. Create a histogram using a bin width of 5000 for the Median Salary data. From your visual analysis, describe the shape and center of the distribution. Select the correct choice below and fill in the answer box to complete your choice.(Type a whole number.)A.The distribution is bimodal with the typical Median Salary aroundB.The distribution is right-skewed with the typical Median Salary around $C.The distribution is left-skewed with the typical Median Salary around $D.The distribution is roughly symmetric and roughly unimodal with the typical Median Salary around $2. Based upon your visual analysis of the Median Salary histogram, what is the most appropriate measure of center and variation to calculate and interpret?A.The mean and standard deviation because the shape of the distribution is symmetricalB.The median and standard deviation because the shape of the distribution is skewed.C.The mean and Interquartile Range because the shape of the distribution is symmetricalD.The median and Interquartile Range because the shape of the distribution is skewed.3. What was the mean Median Salary for these 1000 dealership locations?4. What was the standard deviation of the Median Salary for these 1000dealership locations?5. What was the median Median Salary for these 1000 dealership locations?6. What was the Interquartile Range of the Median Salary for these 1000dealership locations?7. Corporate headquarters believes that there is a strong relationship between the median salary of people living in the vicinity of their dealerships and the annual sales of each dealership. Headquarters is particularly interested in the relationship between these two variables at its high-revenue dealership locations, defined as a dealership with at least $100,000,000 or more in annual sales. How many dealerships in this data set have annual sales greater than or equal to $100,000,000?8. We have an interest in finding out if the different dealerships sell different kinds of cars. Although our data set does not contain a lot of detail, one way to find such differences is by looking at the combination of Annual Sales and Number of Vehicles Sold for each dealership.Find the median values of Annual Sales and Number of Vehicles Sold.The median value for Annual Sales is $ and the median value for Number of Vehicles Sold is
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