project

Please read the attachment and follow the direction.  minimum of 2 pages in length for each phase.

In this module you will begin working on Phase 2 of your course project. Using the same data set and variables for your selected topic, add the following information to your analysis:

1. Discuss the importance of constructing confidence intervals for the population mean.

· What are confidence intervals?

· What is a point estimate?

· What is the best point estimate for the population mean? Explain.

· Why do we need confidence intervals?

2. Based on your selected topic, evaluate the following:

· Find the best point estimate of the population mean.

· Construct a 95% confidence interval for the population mean. Assume that your data is normally distributed and σ, the population standard deviation, is unknown.

· Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.

· Write a statement that correctly interprets the confidence interval in context of your selected topic.

3. Based on your selected topic, evaluate the following:

· Find the best point estimate of the population mean.

· Construct a 99% confidence interval for the population mean. Assume that your data is normally distributed and σ, the population standard deviation, is unknown.

· Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.
· Write a statement that correctly interprets the confidence interval in context of your selected topic.

4. Compare and contrast your findings for the 95% and 99% confidence interval.

· Did you notice any changes in your interval estimate? Explain.

· What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain.

In this module you will begin working on Phase 3 of your course project. Using the same data set and variables for your selected topic, add the following information to your analysis:

1. Discuss the process for hypothesis testing.

· Discuss the 8 steps of hypothesis testing?

· When performing the 8 steps for hypothesis testing, which method do you prefer; P-Value method or Critical Value method? Why?

2. Perform the hypothesis test.

· If you selected Option 1:

· Original Claim: The average salary for all jobs in Minnesota is less than $65,000.

· Test the claim using α = 0.05 and assume your data is normally distributed and σ, the population standard deviation, is unknown.

· If you selected Option 2:

· Original Claim: The average age of all patients admitted to the hospital with infectious diseases is less than 65 years of age.

· Test the claim using α = 0.05 and assume your data is normally distributed and σ, the population standard deviation, is unknown.

· Based on your selected topic, answer the following:

3. Write the null and alternative hypothesis symbolically and identify which hypothesis is the claim.

3. Is the test two-tailed, left-tailed, or right-tailed? Explain.

3. Which test statistic will you use for your hypothesis test; z-test or t-test? Explain.

3. What is the value of the test-statistic? What is the P-value?

3. What is the critical value?

3. What is your decision; reject the null or do not reject the null?

3. Explain why you made your decision including the results for your p-value method or the critical value method.

3. State the final conclusion in non-technical terms.

Please show your work for the construction of the test-statistic and explain your process for finding the p-value and critical value. Be sure to use the Equation Editor to format your equations.

STA3215 Advanced Statistics and Analytics – Option 2

Introduction:

As a healthcare professional, you will work to improve and maintain the health of individuals, families, and communities in various settings. Basic statistical analysis can be used to gain an understanding of current problems. Understanding the current situation is the first step in discovering where an opportunity for improvement exists. This course project will assist you in applying basic statistical principles to a fictional scenario in order to impact the health and wellbeing of the clients being served.

This assignment will be completed in phases throughout the quarter. As you gain additional knowledge through the didactic portion of this course, you will be able to apply your new knowledge to this project. You will receive formative feedback from your instructor on each submission. The final project will be due on week 5.

Scenario:

You are currently working at NCLEX Memorial Hospital in the Infectious Diseases Unit. Over the past few days, you have noticed an increase in patients admitted with a particular infectious disease. You believe that the ages of these patients play a critical role in the method used to treat the patients. You decide to speak to your manager and together you work to use statistical analysis to look more closely at the ages of these patients. You do some research and put together a spreadsheet of the data that contains the following information:

· Client number

· Infection Disease Status

· Age of the patient

You need the preliminary findings immediately so that you can start treating these patients. So let’s get to work!!!!

Background information on the Data:

The data set consists of 65 patients that have the infectious disease with ages ranging from 35 years of age to 81 years of age for NCLEX Memorial Hospital. Remember this assignment will be completed over the duration of the course.

2

>Names

2 Yes

3 Yes

Yes

5 Yes

6 Yes 60

Yes

Yes

9 Yes 70

Yes

Yes

Yes 72

Yes

Yes

Yes

Yes

Yes

Yes 55

Yes 49

Yes 60

Yes 72

Yes 70

Yes

Yes

Yes

Yes

Yes 71

Yes 69

Yes 71

Yes

Yes 70

Yes 55

Yes

Yes 69

Yes

Yes 48

Yes 60

Yes 61

Yes

Yes 59

Yes 60

Yes

Yes

Yes

45 Yes 64
46 Yes 50

Yes 69

48 Yes

49 Yes 68
50 Yes 71

Yes 69

52 Yes 59
53 Yes

54 Yes 69
55 Yes

56 Yes 61

Yes 59

58 Yes 71
59 Yes 71
60 Yes 68
61 Yes 49
62 Yes 73
63 Yes 64
64 Yes

65 Yes 71

Patient #	Infectious Disease	Age
1																																																																	Yes		6	9
	3	5
					60
4				55
			49
7			72
8				70
10		73
11			68
12
13	74
14						69
15		46
16			48
17							71
18
19
20
21
22
23	76
24		56
25					59
26				64
27
28
29
30				61
31
32
33		45
34
35		54
36
37
38
39			50
40
41
42		62
43		63
44		53
47
	52
51
	58
	65
57
81