Category: Mathematics Homework Help

Respond to one of the following options in your initial post, citing at least one specific credible source in support. Question on credible sources? See the Scholarly, Peer-Reviewed, and Other Credible Sources (Links to an external site.).

Option 1

• Determine whether there is any link between the normal distribution and Variation 2: Standard Deviation (With a Digression on Eggroulette) (Links to an external site.) where we relied on statements such as “about two-thirds of observations are within one standard deviation of the mean.”
• Briefly discuss.

Option 2

• State an example of a variable that follows a normal distribution.
• State one way knowing this is useful in your professional or personal life.
• Briefly elaborate on your example.

Option 3

• Identify the minimum number of data points needed to generate a normal distribution.
• Create a data set of that size, and show that it meets the first three conditions for a Normal Distribution in section 5.1 on page 164 of the text.

“The Null hypothesis is that there is no difference in mean satisfaction between managers and individual contributor satisfaction. While The Alternative hypothesis is that managers are more satisfied than the individual contributor employee.” If you wanted to use Statistical notations, how would you write the hypothesis statements?

Review the data your coworker collected in the Analysis of t-Test Data Spreadsheet.

First, plan your analysis. Second, conduct your analysis.

Explain the followings:

Part 1: Planning

• What are the null and alternative hypotheses?
• Where did you obtain your data or who obtained it for you?

Part 2: Analysis

• What are the descriptive statistics for your sample? Include:
• Sample size
• Mean
• Median
• Mode
• Standard deviation

Post a response to your classmate. Be constructive and professional.

This is an answer from another student. I need a reply to their answer with a minimum of 100 words and without any references.

“The null hypothesis would be that there is no difference in contribution between managers or individual employees. The alternative hypothesis would be that there is a difference in contribution between managers and individual employees. The data for this analysis was obtained by a coworker, not sure the method that was used.

The sample size is 53 individuals which consists of 25 managers and 28 individual contributors.

The mean for managers is 59.24.

The mean for individual contributors is 42.39

The overall mean is 50.33

The median for managers is 67.

The mode for managers is 78, 54, 56, 67, 23.

The median for individual contributors is 35.

The mode for individual contributors is 23.

The overall median is 45.

The overall mode is 23.

The standard deviation for this data group is 28.7

According to the results, the null hypothesis is wrong since there is a difference in contribution between managers and individual employees.”

two attchments one is the question and another one is the data. It’s my last assignment and worth the most points so i need a sample draft to help me get the perfect score.

You have been charged with creating a survey for your community! The community is interested in having you create a survey and present the results at the next town hall meeting.

In this project, students will:

Learn about quantitative variables.

1. Learn to analyze data for measures of central tendency (mean, median and mode)
2. Learn to create an effective presentation with real-world conclusions.

To complete this project you will:

Think of a problem within your community or workplace. The problem needs to be something others will have an interest in solving or will want to share reactions to.

1. Create a 10 question survey with quantitative variables (number) on a topic you are interested in. Think of questions where 0 is dislike there is a scale to 4- like. Another way to do this is using 0-never, 1 sometimes, 2 frequently, and 3 always.
2. Administer the survey to a minimum of 10 people.
3. Analyze your data for the mean, median, and mode of each questions.
4. Create a visual from this chapter: bar graph, box and whisker plot, histogram, stem and leaf plot. etc.
5. Compile the information into a slide presentation, of at least 5 slides, to present at the next town hall. The presentation should present: the mean, median, and mode of each question, the visual of the data, and conclusions based on the statistics you found in the survey.
6. 2 pages
7. 12 point, Calibri Font, no more than 1″ marginsSubmit in word

I need an explanation for this Statistics question to help me study.

Questions:

Please answer each of the following questions and provide examples for better clarity wherever applicable. Provide in-text citations. In answering the following questions please include choice of significance level and the effect of p-values

Explain the linear multiple regression model, the independent variables and the dependent variable, assumptions of the model, as well as the objectives

Given the data, what approach is taken to construct the model?

Explain the effect of multicollinearity in multiple regression, and how multicollinearity is detected?

• Show that the estimates of the coefficients are unbiased estimates of actual values.
• Explain the hypotheses on coefficients of the regression and how the results of testing these hypotheses are interpreted about significance of these coefficients? Include both unidirectional and bidirectional situations
• How do you interpret the effect of significant coefficients?
• How are the distribution of the observed residuals of the constructed model tested for normality? 
• What is the coefficient of determination, and what is its significance?
• Why is the adjusted coefficient of determination used as an alternative assessment
• How can the regression model be used for prediction?

Hello, I have a 5 question homework due in 1 hour and a half. The topics are about Functions of Several Variables, Limits and Continuity, Partial Derivatives, Tangent Planes and Linear Approximations, The Chain Rule. Please accept this bid if you are familiar with these topics for calc 3

• Your data file must have at least 300 observations .   
• Data must have at least two numeric variables that you think might have an association with each other.  One of these will be your response variable (y) and the other your explanatory variable (x). 
• You may choose data from any source that interests you.  Here are a couple of sites where you might find suitable data (not all data is suitable – see me if you’re not sure).  You might also google something like “free small dataset csv download”
  • https://archive.ics.uci.edu/ml/datasets.php
  • http://veekaybee.github.io/2018/07/23/small-datasets/
  • Do a Google search on “free small dataset csv download”

Once you have identified your data, post the following:

• Where did you find this data (exactly – include the URL) and what does it represent?
• What two numerical values will you be looking at? 
• Do you expect there will be a relationship between these variables?
• Create a scatterplot and compute the correlation value for these two numerical values
• Write a 2-3 paragraph describing the association (or lack thereof) between your two numeric variable

Answer the following questions using the data Set 3-1

A student was interested in the structure of the families in the U.S. He sampled 29 of his 330 classmates asking the question, “How many children are there in your family?” He compiled the answers into a simple frequency distribution:

1.What is the mean?

2.What should be the symbol of a mean calculated for these data?

3.What is the median?

4.What is the mode?

Answer the following questions using the data set 4-2

5.What is the range?

6.Compare the variability of the scores of 10, 11, 9, 10, 11, 9 with the variability of data set 4-2.

7.If you consider data set 4-2 to be a population, what is the standard deviation

8.What is the deviation score of the raw score of 7 in data set 4-2