MATH120: Confidence Intervals For The Mean Sigma Known

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Can you help me understand this Statistics question?

Assuming .05 as your alpha value, make up a problem similar to this one. Make up 36 gas prices for your example. Use price values in your list that some you made up and be sure they are similar to the prices you have had in your area. List the values in your post.

Instructions for your response.

In your response, copy the original problem, describe what you did and give the mean, standard deviation and confidence interval. Then attach the excel spreadsheet below so students and the professor can check your work.

Example below:
First find the mean. List all 36 gas prices in cells A1 to A36 in your excel spreadsheet. On a different cell type in =average(A1:A36) and the hit enter to find the average Assume your answer is 2.65 On a different cell type in =stdev.s(A1:A36) or =stdevA(A1:A36) and enter to find the standard deviation Assume your answer is .43 Then type this in an excel cell =confidence.norm(.05,.43,36) and hit enter. This is the E value So take the mean of 2.65 and you have (2.65-E, 2.65+E) for your confidence interval
Formula you used above for the confidence interval:

The formula is E= zsubc * sigma / sqrt n

Where the left hand endpoint is xbar – E and the right hand endpoint is xbar + E

Just a review of your instructions:
You will make up a problem with alpha = .05 and give the values for the problem. This is your main post.
Instructions: Your initial post should be at least 250 words.geometry graded assignments
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Assignment 1 https://static.k12.com/calms_media/media/8120000_8120500/8120131/fd7db1288fe5a89569cbfd039ccfdbd3cc454dbb/8120131.pdf

Assignment 2

https://static.k12.com/calms_media/media/8120000_8120500/8120133/2fcec9040d2aa3a0b0b89332374116011cdfeb71/8120133.pdf

Assignment 3

https://static.k12.com/calms_media/media/8120000_8120500/8120125/e0100c0e08bd58aa9adb9be6831bebacc377bc37/8120125.pdf

Assignment 4

https://static.k12.com/calms_media/media/8120000_8120500/8120135/74aff7d0048cd4574d3ba767d06ea2eb07400158/8120135.pdf

Please make it very clear where the one assignment ends and the next starts, thanks!Quiz 3 – Quick: assignment help philadelphia
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show all work following standard mathematical practice:

1) Each step should show the COMPLETE expression or equation, not just a piece of it.

2) Each new step should follow logically from the step above it, following rules of algebra.

3) Each new step should be beneath the previous step.

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Download the .pdf and .xlsx files from Blackboard, along with this .docx.
Analyze the dataset, identify key questions and write a report based on your findings. Use any (more than one) technique covered so far in class.
For e.g. use two sample tests, ANOVA, chi-sq. tests, and multiple regression.
Guidelines for Report
Type your report in a clear and organized style: The score of the written report will be weighted as follows: For the statistical analysis, address:
Section 1, Executive Overview (0.5-1 page):Summarize the key findings based on your study and discuss any possible future study or data collection that might be necessary. Section 2, Statistical Analysis (3-5 pages):Very carefully describe the steps you took to analyze the data and describe what, how and why decisions were made along the way.Support your analysis with relevant plots, relevant statistics, and relevant hypothesis tests.Include these in your report. DO NOT include irrelevant calculations or analyses.All relevant computer outputs can be relegated to the appendices with clear cross-referencing in the paper. Section 3, Summary and Conclusion (0.5-1 page): Summarize how the results of your analysis may be used in managerial decision-making.Also discuss what you have learned in the course of completing the project and how these experiences can be applied in future undertakings of statistical analysis.
Section 1: 20%

Section 2: 50%

Section 3: 20%

Writing: 10%
Identify multiple question from your data. State the hypothesis for each question. Run the appropriate statistical procedure for each question. Report the results, and summarize the findings for each question. Interpret the results in the context of your question.
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Textbook: Understanding and Applying Basic Statisticals Method by Rand Wilcox.

Chapters 8-10

– Exam help (8 questions total) Must show written work with correct formulas

EXAM WILL ONLY BE BASED ON THE TEXTBOOK ABOVE^

Chapter 8

– Regression (Page 222)

– Numeral of sample variance

– Sample size (what’s wrong with it?)

– use the standard error

– computations > can you fix it?

– AC form method

– Outliers > can the outlier decrease/increase standard error?

– Piercen’s correlation (page 231-231)

– T-test (page 232)

– Spearman row hyptothesis (page 241)

– windsorized sample test

– Multiple regression

Chapter 9

– Two sample t-test

– Power (outliers can destroy power)

-homoelastic.

– Testing assumptions

– Percentile bootstraps

– U method comparing trim means (page 281)

– Rank based methods

– Measuring effect sides

Chapter 10

– Nova F technique (page 323)

– What’s an interaction?

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