Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

You will submit a final report, written in Word (or similar word processing software), based on your findings and submissions from parts 1-4. It is

image text in transcribed

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
You will submit a final report, written in Word (or similar word processing software), based on your findings and submissions from parts 1-4. It is highly suggested you not submit this paper without first reviewing all the feedback from your instructor on submissions from weeks 1-6. Be sure to ask any questions you may have on your feedback. This final submission should be three paragraphs and summarize your entire project. It will be submitted through SafeAssign, Liberty's Plagiarism software on BlackBoard. The project must be submitted in paragraph form and not just a list of the calculations from your project. Be sure your paragraphs flow (not just listing the answers to the questions, but complete sentences with transitions) and are written in third person. You are presenting your results to a nonstatistical audience, do not describe the calculations, describe your results. It should include the following: . Paragraph 1: o Brief summary of the article, including the source Link for article: https://www.usnews.com/higher-education/online-education/articles/2017-04-04/us-news-data-the-average-online-bachelors-student Define the population, sample, and statistic for the study Statement of the two claims in the article that were tested in this project . Null and alternative hypothesis for both tests run for this project (in words) . Paragraph 2 (address the claim about the mean): o Summary of sample statistics (mean, standard deviation, median, quartiles, sample size) o Confidence interval, along with interpretation of the confidence interval o Description of hypothesis test (alpha, test statistic, p-value, conclusion, interpretation) . Paragraph 3 (address the claim about the proportion): . Summary of sample statistics (sample size, successes, proportion) Confidence interval, along with interpretation of the confidence interval o Description of hypothesis test (alpha, test statistic, p-value, conclusion, interpretation)A B C D G H K LMN P Q R S Age Gender For the following questions, use only the "age" column: 40 M 20 28 M 20 Points Age Frequency Distribution: Class Width 33 M 20 41 M 21 Class Limits Cumulative 33 F 22 Low High Midpoint Freq. Relative Frequency Relative 20 M 23 Limits 20 26 23 11 0.5000 0.5000 25 M 24 Freq. 27 33 30 0.1818 0.6818 24 M 25 Mid. 34 40 37 .1364 0.8182 22 M 25 RF 47 44 0.1364 0.9545 25 M 26 CF 55 51.5 0.0455 1.0000 23 M 26 221 21 F 27 Mean 30.55 *Round to two decimals 47 M 28 Median 26.5 *Round to one decimal 26 M 33 NNN NN Sample Standard deviation: 9.43 *Round to two decimals 20 M 33 Q1 23.25 *Round to one decima 39 M 391 03 39 *Round to one decimal 44 M 39 26 M 40 49 F 41 Ogive: UT UT 27 M 14 Polygon 20 M 47 High Relative frequency give: 39 F 26 0. 33 0.6818 relative frequency ogive of age Total: 25 10 0.818 1.2 0.9545 55 0.8 relative frequency 0.6 0.4 02 0 10 20 30 40 50 60 upper limit midpoint frequency Polygon: 2 11 30 4 frequency polygon of age 37 w w 44 12 51.5 1 10 8 frequency Week 3 Week 5 Week 6 +Age Gender Points 95% Confidence Interval for Average Age of Online College Students: 40 M 28 M Sample Mean: 30.55 33 M Sample St. Dev: 9.43 41 M 1 Sample Size: 22 33 F 20 M 2 Distribution: T-Distribution 25 M 24 M 2 Critical Value: 2.08 *2 decimals 22 M 25 M IN Margin of Error: 1.18 *2 decimals Calculation: ROUND(G9*(G4/SQRT(G5)),2) 23 M 1 ower Bound: 26.37 *2 decimals Calculation: G3-G11 21 F Upper Bound: 34.73 *2 decimals Calculation: G3+G11 47 M 26 M A 95% confidence interval for average age of online college student is (26.37, 34.73) means that we 95% 20 M 2 Interpret | confident that the average age of online students lies between 26.37 + 34.73 39 M 44 M 95% Confidence Interval for Proportion of Male Online College Students: 26 M 49 F P Sample Size: 22 27 M Number of Males: 18 20 M N Male Proportion: 0.8182 Female Proportion 0.1818 *4 decimals 39 F 2 Distribution: Normal Distribution 2 Critical Value: 1.96 *2 decimals 2 Margin of Error: 0.1612 *4 decimals |Calculation: ROUND(G26*SQRT(G22*(1-G22)/G20),4) Lower Bound: 0.657 *4 decimals Calculation: G22-G28 Upper Bound 0.9794 *4 decimals Calculation: G22+G28 95% confidence interval for proportion of male online college students is (0.6570, 0.9794) means that we 2 Interpret 95% confident that the proportion of male online college students lie between 0.6570 + 0.9794 25 Total PointsFor the following two hypothesis tests, use the alpha = .05 level of confidence Points Claim: The average age of online students is 32 years old. 1 Ho: H = 32 Ha: H # 32 Sample mean: 30.55 Sample St. Dev: 9.43 2 Distribution: Normal Distribution Test Statistic: 0.15 *2 decimals Calculation: reject the null hypothesis, Ho- NN p-value: 0.4404 *4 decimals There is enough sufficient evidence to conclude that the average age of 3 Interpretation: online students is 32 years old at 5% significance level. Claim: The proportion of males in online classes is 35% Ho: p =0.35 Ha: p * 0.35 Sample Proportion Males 0.8182 Sample Proportion Females 0.1818 2 Distribution: Normal Distribution Test Statistic: 5.38 *2 decimals Calculation: Reject the null hypothesis, Ho- N W p-value: 0 *4 decimals in online classes is 35% at 5% significance level. 3 Interpretation: 25

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Intermediate Algebra Functions & Authentic Applications

Authors: Jay Lehmann

5th Edition

0321923464, 9780321923462

More Books

Students also viewed these Mathematics questions