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1)Test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected. A manufacturer uses a new production method to produce steel rods. A random sample of 37 steel rods resulted in lengths with a mean 5+1 and standard deviation of 4.7 cm. At the 0.10 significance level, test the claim that the new production method has mean 5.5 cm, which was the mean for the old method.
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Numerous problems in the area of finance can be addressed by using the various optimization techniques. These problems often involve attempting to maximize the return on an investment while meeting certain cash-flow requirements and risk constraints. Alternatively, we may want to minimize the risk on an investment while maintaining
In this assignment, you will test for a significant difference between the average resting heart rate of males and the average resting heart rate of females in your heart rate data. You have observed that the mean rates are not exactly the same, but are they significantly different? You may
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In this assignment, you will calculate confidence intervals for the quantitative variables in the Heart Rate Data Set. Steps Open the Heart Rate Excel Data Set and identify the quantitative variables. Make sure the data is sorted by category (e.g.male-at-rest, female-at-rest, etc.). Use the Data Analysis tools of Excel to
For this discussion, you will use a census website that posts information on variables observed in the city where you live. Here is the website address. https://www.census.gov/acs/www/data/data-tables-and-tools/data-profiles/2017/Links to an external site. Links to an external site.After you open the website, you can enter the name of your state on the
This week you will look at misleading information that you are exposed to every day. Find an example of a survey or poll or even a tweet that you think might be misleading. How would you support your conclusions? You want to use statistical reasoning here, not personal opinion. Places to look
The average height for all males is 69.3 inches with a standard deviation of 2.8 inches. For females, the average height is 64 inches and the standard deviation is 2.8. These are population values. For this week’s discussion, you will calculate a z-score based on your own height and determine
In this assignment, you will be required to calculate descriptive statistics for each numeric variable in the Heart Rate Data Set . Steps 1. Open the Heart Rate Excel Data Set 2. Sort the quantitative variables by class (e.g., Male at-rest heart rate and Female at-rest heart rate) 3. Use the Excel
Can inaccurate graphs bias the interpretation of data? Graphs provide a visual representation of data meant to provide information. Here are three graphs that may present data in an inaccurate or misleading manner. Choose one graph for this discussion and answer the questions based on your chosen graph. Graph 1
Instructions Your final report must be a complete report describing your findings from the data (use and submit the template attached). You must use the lab template attached to this assignment. Your final report must be a complete report putting together and describing your findings from the analysis of the
Week 6 assignment Instructions Understanding Pearson’s r in Public Health You will define how Pearson’s r is used in biostatistics. This internet exercise assignment should be at least 450 words and no more than 1-1/2 pages long, You will need to cite within the text and have a reference section in
please post 2 or more peer responses In the response posts, remember to demonstrate you have read and understood the student’s post by taking their discussion to the next level. Do this by: · Ask a peer open-ended questions about their example of the use of statistics in their field.
Need the attached Math questions answered. There are a total of 15 questions that need solutions. Need within a day so I can use to verify the assignment answers I have.
This week you will use the Bureau of Labor Statistics website to search for income data on the occupation you are seeking. Visit the following website: to an external site. . The BLS has wage information for hundreds of jobs, and data can also be found by state. There
Instructions In this assignment, you will be required to use the Heart Rate Data Set to complete the following: · Use the classification of variables from the Unit 1 assignment to match each variable to one appropriate type of graph · Create graphs of those variables · Give a brief
Can inaccurate graphs bias the interpretation of data? Graphs provide a visual representation of data meant to provide information. Here are three graphs that may present data in an inaccurate or misleading manner. Choose one graph for this discussion and answer the questions based on your chosen graph. Graph 1
I need help solving the attached Math/Statistics problems Chapter 6: Normal Distribution (concepts) Jonai Tellison Question 1 1 pt 1 99 Question 2 1 pt 1 99 Question 3 1 pt 1 99 Question 4 1 pt 1 99 If is a random variable from a standard normal distribution and
In this assignment, you will be required to use the Heart Rate Data Set to complete the following: · Identify the variables in the dataset · Classify each variable as qualitative or quantitative discrete or quantitative continuous · Specify the possible values of each variable · Give a brief written
