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Chamberlain College of Nursing Chapter 8 Week 7 Confidence Intervals Essay

Chamberlain College of Nursing Chapter 8 Week 7 Confidence Intervals Essay

Question Description

This is a two part paper.

Course Project Part I

Required Resources

Read/review the following resources for this activity:

  • Textbook: Chapter 8
  • Lesson

Scenario/Summary

You will complete a Course Project in this course that will span twoweeks. The final project is due the Sunday of Week 7. The project isbroken into two parts and it would be most effective to complete Part Iin Week 6 and Part II in Week 7. In Week 6, Confidence Intervals will be explored and in Week 7 Hypothesis testing will be explored.

A confidence interval is a defined range of values such that there isa specified probability that the value of a parameter lies within theinterval.

In Part I of this project, you will pick a topic, complete research and provide a write-up that includes calculations. Round all values to two decimal places when appropriate.

Deliverables

  1. Choose a Topic where you can gather at least 50 pieces of data.

Examples of Topics

  1. The Golden Gate Warriors Points Per Game in 2016 (use the points scored in the first 50 games).
  2. High School Graduation Rates by State (use the graduation rates for all 50 states)
  3. Average Tuition Rates in the US (You have to find the tuition rates of 50 college/universities).
  4. The prices of a hotel room per night in a major city (You have to find the price of the same night of hotels in one city).
  5. Weights of 50 babies at birth.
  1. Write at least a 1-Page Report

Open a Word Document

  1. Introduction–Provide a description of your topic and cite where you found your data.
  2. Sample Data—Include a 5×10 table including your 50 values in your report. You must provide ALL of your sample data.
  3. Problem Computations—For the topic you chose, you must answer the following:
  • Determine the mean and standard deviation of your sample.
  • Find the 80%, 95%, and 99% confidence intervals.
  • Make sure to list the margin of error for the 80%, 95%, and 99% confidence interval.
  • Create your own confidence interval (you cannot use 80%, 95%, and99%) and make sure to show your work. Make sure to list the margin oferror.
  1. Problem Analysis—Write a half-page reflection.
  • What trend do you see takes place to the confidence interval as theconfidence level rises? Explain mathematically why that takes place.
  • Provide a sentence for each confidence interval created in part c)which explains what the confidence interval means in context of topic ofyour project.
  • Explain how Part I of the project has helped you understand confidence intervals better?
  • How did this project help you understand statistics better?

Required Software

Microsoft Office: Word and Excel

Use a personal copy or access the software at https://application.chamberlain.edu (Links to an external site.).

Grading

This activity will be graded based on the Course Project grading rubric. You can view the rubric below.



Course Project Rubric

Criteria Ratings Pts
Part I: Topic & Introduction
4.0 pts 3.0 pts

Above Average Student picks appropriate topic and introduces data. No citation.

2.0 pts

Average. Student does not pick a topic that is appropriate for the project, introduces the data but does not cite source.

1.0 pts

Needs Improvement Students provides topic without descritption and citation.

0.0 pts

No Effort. No topic, descritpion or citation is provided.

4.0 pts
Part I: Sample Data
4.0 pts

Proficient Student provides ALL 50 pieces of data.

3.0 pts

Above Average Student provides 30-49 pieces of data.

2.0 pts

Average Student provides 20 – 29 pieces of data.

1.0 pts

Needs Improvement Student provides 1-19 pieces of data.

0.0 pts

No Effort. No Data was provided.

4.0 pts
Part I: Mean & Standard Deviation
5.0 pts

Proficient Mean & Sample Standard Deviation of the data set is correct with no rounding error. .

4.0 pts

Above Average Mean & Sample Standard Deviation of the data set is correct but with roujnding error.

3.0 pts

Average One Value (either mean or sample standsrd deviation) is correct but the other is not correct.

1.0 pts

Needs Improvement Both the Mean & Sample Standard Deviation are incorrect but it was attempted.

0.0 pts

No Effort. The mean and sample standard deviation

5.0 pts
Part I: Constructing the 80%, 95%, 99% Confidence Intervals
15.0 pts

Proficient Computes the 80%, 95%, and 99% confidence intervals correclty making sure to note the margin of error for each.

12.0 pts

Above Average Computes the80%, 95%, and 99% confidence intervals correclty but is missing marginof errors (or some of the margin of errors are incorrect).

10.0 pts

Average Computes the 80%, 95%, and 99% confidence intervals but there are some errors in the calculations.

6.0 pts

Needs Improvement Computesthe 80%, 95%, and 99% confidence intervals but all of the values areincorrect. The component was attempted.

0.0 pts

No Effort. No Confidence Intervals are provided.

15.0 pts
Part I: Creating a new confidence interval
7.0 pts

Proficient. Student computes a confidence interval (not 80%, 95%, 99%) correctly making sure to list the margin of error.

5.0 pts

Above Average. Studentcomputes a confidence interval (not 80%, 95%, 99%) correctly making sureto list the margin of error but there is rounding error.

4.0 pts

Average. Student computes a confidence interval (not 80%, 95%, 99%) correctly but does not highlight the margin of error.

3.0 pts

Needs Improvement Student computes a confidence interval (not 80%, 95%, 99%) but it was not done correctly.

0.0 pts

No Effort. The student did not create a new confidence interval.

7.0 pts
Part I: Problem Analysis
10.0 pts

Proficient. Studentaddresses trend that takes place when the confidence level rises.Provides a sentence for each confidence interval created explaining whatthe confidence interval means in context of the data collected.Provides a reflection for Part I of the project.

8.0 pts

Above Average. Studentaddresses trend that takes place when the confidence level rises.Provides sentences for each confidence interval created explaining whatthe confience interval means in context of the data collected. Does NOTprovide a Reflection.

7.0 pts

Average. Student may or maynot address the trend that takes place when the confidence level rises.Provides a sentence for SOME confidence intervaSl created explainingwhat the confidence interval means in context of the data collected. Areflection Part I of the project may or may not be provided.

5.0 pts

Needs Improvement. Majority of the analysis is missing.

0.0 pts

No Effort. No Problem Anaylsis is provided.

10.0 pts
Part II: Choose a Data Set & Preliminary Data
5.0 pts

Proficient. Student computes all 4 Preliminary Data Values.

4.0 pts

Above Average. Student computes all 3 Preliminary Data Values.

3.0 pts

Average. Student computes all 2 Preliminary Data Values.

1.0 pts

Needs Improvement. Student computes all 1 Preliminary Data Values.

0.0 pts

No Effort. No Preliminary Data

5.0 pts
Part II: Hypothesis Testing
20.0 pts

Proficient. Completes 4Hypothesis Tests highlighting the null/alternate hypothesis, value oftest statistic, and report p-value.

16.0 pts

Above Average. Completes 3Hypothesis Tests highlighting the null/alternate hypothesis, value oftest statistic, and report p-value.

14.0 pts

Average. Completes 2 Hypothesis Tests highlighting the null/alternate hypothesis, value of test statistic, and report p-value.

10.0 pts

Needs Improvement: Completes1 Hypothesis Test highlighting the null/alternate hypothesis, value oftest statistic, and report p-value.

0.0 pts

No Effort. No Hypothesis Tests were completed.

20.0 pts
Part II: Hypothesis Testing Analysis
10.0 pts

Proficient. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for ALL 4 Problems.

8.0 pts

Above Average. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 3 Problems.

7.0 pts

Average. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 2 Problems.

5.0 pts

Needs Improvement. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 1 Problem

0.0 pts

No Effort. No conclusion/explanations were given.

10.0 pts
Part II: Proposal and computations for new hypothesis test
10.0 pts

Proficient. Student createsan original Hypothesis Test based on one of the data sets highlightingthe null/alternate hypothesis, value of test statistic, report p-value,conclusion and explanation.

8.0 pts

Proficient. Student createsan original Hypothesis Test based on one of the data sets correclty andhas MOST of the content: highlighting the null/alternate hypothesis,value of test statistic, report p-value, conclusion and explanation.

7.0 pts

Average. Student creates anoriginal Hypothesis Test based on one of the data sets and MISSING MOSTof the content: highlighting the null/alternate hypothesis, value oftest statistic, report p-value, conclusion and explanation.

5.0 pts

Needs Improvement. Studentcreates an original Hypothesis Test based on one of the data sets butthere are multiple mistakes and/or conclusions are not valid.

0.0 pts

No Effort. The student did not propose/compute a new hypothesis test.

10.0 pts
Total Points: 90.0