Tag: Mathematics

Milestone 2: Exploratory Data Analysis and Regression

Overview and Objectives

The primary objective of this project will be to provide an in-depth analysis of data through the lens of regression analysis. Modern research looks at the interaction between a multitude of variables to provide conclusions based on experimental data. You will have the opportunity to explore a few realistic regression models and provide conclusions on them based on your own observations.

You will also observe a few measures of central tendency of the data. You will gain an understanding of the distribution of data through identifying the standard deviation and quartiles of your data set. You will then use these measures of central tendency to identify outliers in your data and determine whether they should be omitted in your regression.

You’ll also make inferences based on your regression data and determine which variables are significant in your model. This will help you identify the independent variables that adequately explain the variance in your model. The techniques you apply in this project will hopefully form the foundation of future research and exploration.

I’m studying for my Statistics class and don’t understand how to answer this. Can you help me study?

What is the difference between a scatter diagram and a contingency table?

I’m working on a statistics discussion question and need an explanation and answer to help me learn.

When data is collected, the most common calculations computed are the Measures of Central Tendency, mean, median and mode. It is important to know how to compute these values and it is also extremely important to know what these values mean in context of the data set.

Use the internet to find a data set. Key terms to search: Free Public Data Sets and Medical Data Sets.

1. Introduce your Data Set and Cite the Source.
2. Why was this data interesting to you?
3. Calculate measures of central tendency (Mean, Median & Mode) and measures of variation (Range and Standard Deviation) for your data. Write a sentence for each calculation explaining what that value means in context of your data.

I have a FExam Thursday and I need ur help it’s 20 questions on 8 more than the previous and it on 7:00 pm Phoenix Arizona time.Here is the study guide https://math.asu.edu/sites/default/files/mat_210_final_exam_review.pdf

I need RMD and html both

• Suppose you want to tes-t the following hypotheses:

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Ho: µ = 30,000

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Ha: µ not equal to 30,000

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Use α=0.05 and α=0.01.

• (3pts) Define a rejection region for a given α-level. Assume σ=5,000. All derivations must be included in the report. [Note: the sample size is small!]
• (2pts) Construct two Power Curves for various values of β- Type II error rate. These curves must be on the same plot. [Note: you will need to consider various values for the sample mean.]
• (2pts) Reflect on your findings. How does α-level impact the shape of the power curve? How does power changes with α? How does power changes with β? A minimum 5 full sentences are required for full credit.

Calculus, originally called infinitesimal calculus or “the calculus of infinitesimals”, is the mathematical study of continuous change, in the same way that geometry is the study of shape and algebra is the study of generalizations of arithmetic operations.

I don’t know how to handle this Statistics question and need guidance.

1. Please define each of the following terms and provide a hypothetical example for each: hypothesis testing, null and alternative hypothesis, non-directional and directional hypothesis, type I error in testing hypothesis, type II error in testing hypothesis, probability of type I error (?), probability of type II error (ß), power of the test and its significance, the critical value(s) in a test, p value (significance level).
2. What are the possible outcomes in testing a hypothesis? What are the determinant factors in deciding the critical value(s) in testing a hypothesis?
3. When the z-statistic is appropriate to be used in testing a hypothesis? When the t-statistic is appropriate to be used in testing a hypothesis? What is the criterion for rejecting the null hypothesis for both non-directional and directional tests? How do you find the p-value in each case?

I need help especially on part B,C, and D

A woman has up to $10000 to invest. Her broker suggests investing in two bonds: Bond A , and Bond B. Bond A is a rather risky bond with an annual yield of $10\%$ and bond B is a rather safe bond with an annual yield of $7\%$. After some consideration, she decides to invest at most $\$6000$ in bond A , and invest at least $\$2000$ in bond $B.$ Moreover, she wants to invest at least as much in bond A as in bond B. She wishes to maximize her annual yield.

a) In each blank box below, select the best answer from the list that helps complete the objective function and its associated constraint inequalities. Please note that the option <= indicates $\le$ , and the option >= indicates ≥.

R= [ Select ] [“0.07“, “6000“, “0.1“, “10000“, “2000“, “Correct answer is not listed“] A+ [ Select ] [“Correct answer is not listed“, “10000“, “2000“, “0.1“, “6000“, “0.07“] B$$

A+ [ Select ] [“Correct answer is not listed“, “2“, “1“, “0.07“, “0.01“, “2000“, “6000“] B [ Select ] [“<=“, “>=“, “=“, “Correct answer is not listed“] 10000$\mathrm{}$

A [ Select ] [“Correct answer is not listed“, “<=“, “=“, “>=“] 6000$\mathrm{}$

B [ Select ] [“Correct answer is not listed“, “<=“, “>=“, “=“] 2000$\mathrm{}$

A [ Select ] [“Correct answer is not listed“, “<=“, “>=“, “=“] B$$

b) Use the geometric approach (with A placed on the x-axis and B on the y-axis) to determine the coordinates of the corner points of the solution region. Then, select the answer from this list: [ Select ] [“(6000,4000) , (6000,2000) , (8000,2000)“, “(0,0) , (0,10000) , (10000,0)“, “Correct answer is not listed“, “(0,10000) , (0,2000) , (6000,2000) , (6000,4000)“, “(6000,0) , (6000,2000) , (8000,2000) , (10000,0)“, “(0,0) , (0,2000) , (6000,2000) , (6000,0)“, “(6000,0) , (6000,4000) , (10000,0)“]

c) Which of the feasible corner points you selected in part (b) above maximizes the objective function? Note that a feasible corner point is any corner point with at least one non-zero coordinate. Select the answer from this list: [ Select ] [“(6000,0)“, “Correct answer is not listed“, “(8000,2000)“, “(6000,4000)“, “(0,10000)“, “(6000,2000)“, “(10000,0)“]

d) What is the maximum yield? [ Select ] [“$740“, “$840“, “Correct answer is not listed“, “$700“, “$800“, “$920“, “$880“]

Extreme Sports, Advertising and Your Brain (A)

Case 2.5 (page 132)

To do:

1- read the case and summarize it in two (2) paragraphs.

2- discuss the 5 questions at the end of the case in detail, providing supporting arguments, references, examples, etc.