Final Project

.docx

School

Northern Kentucky University *

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Course

205

Subject

Statistics

Date

Apr 26, 2024

Type

docx

Pages

7

Uploaded by ChiefMulePerson80 on coursehero.com

Last Name 1 Myla Byndon Professor Peterson STA-205 10 April 2023 Project report The topic of my project is the how long it takes to commute from my house to Northern Kentucky University. The topic of my report was to see the correlation between different factors to see how long it took me get to Northern Kentucky University. I was running late for class one day, and I left the same time as I usually do every day and it made me wonder how traffic, weather, and route I take can affect the time I get to school. I would write down the time I left my house and the time I would arrive at nku, and I would check my weather app to see what the
Byndon 2 Two sample T confidence interval: μ 1  : Mean of Minutes where Weather=clear μ 2  : Mean of Minutes where Weather=rain μ 1  - μ 2  : Difference between two means (without pooled variances) 95% confidence interval results: Difference Sample Diff. Std. Err. DF L. Limit U. Limit μ 1  - μ 2 -0.41353383 1.0408126 12.857916 - 2.6646012 1.8375335 With 95% confidence the mean travel time to campus is between the mean of minutes where the weather is clear and where weather is rainy μ 1  - μ 2 is between -2.7 and 1.84. The weather does not really impact the time it takes to get to NKU. The interval was constructed from all data, including the 3 days that were outliers. μ : Mean of variable
Byndon 3 95% confidence interval results: Variable Sample Mean Std. Err. DF L. Limit U. Limit Minutes 16.259259 0.47619274 26 15.28043 1 17.238087 In the histogram you can see on normal days without any disturbances, with 95% confidence the mean travel time to campus is between 15.3 and 17.2 minutes. The histogram follows a relatively normal distribution. This interval was constructed from all data without the outliers. 95% confidence interval results: Variabl e Sample Mean Std. Err. DF L. Limit U. Limit Minutes 18.166667 1.200654 4 29 15.711053 20.622281 In the histogram you can see the minutes change when you have disturbances. With 95% confidence the mean travel time to campus is between 15.7 and 20.6 minutes. The histogram is skewed to the right. This interval was constructed from all data with the outliers.
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