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Here Are Data About the Average January Low Temperature in Cities

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Here are data about the average January low temperature in cities in the United States, and factors that might allow us to
predict temperature. The data, available for 55 cities, include:  Here are data about the average January low temperature in cities in the United States, and factors that might allow us to predict temperature. The data, available for 55 cities, include:   We will attempt to make a regression model to help account for mean January temperature and to understand the effects of the various predictors. At each step of the analysis you may assume that things learned earlier in the process are known. Units Note: The  degrees  of temperature, given here on the Fahrenheit scale, have only coincidental language relationship to the  degrees  of longitude and latitude. The geographic  degrees  are based on modeling the Earth as a sphere and dividing it up into 360 degrees for a full circle. Thus 180 degrees of longitude is halfway around the world from Greenwich, England (0°) and Latitude increases from 0 degrees at the Equator to 90 degrees of (North) latitude at the North Pole.   -Here is the corresponding regression table: Dependent variable is: JanTemp  \mathrm { R }  squared  = 71.9 \% \quad \mathrm { R }  squared (adjusted)  = 71.3 \%   s = 7.222  with  55 - 2 = 53  degrees of freedom    \begin{array}{lllll} \text { Source } & \text { Sum of Squares } & \text { df } & \text { Mean Square } & \text { F-ratio } \\ \text { Regression } & 7061.32 & 1 & 7061.32 & 135 \\ \text { Residual } & 2764.21 & 53 & 52.1549 & \end{array}    \begin{array}{lllll} \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\ \text { Intercept } & 108.805 & 7.146 & 15.2 & \leq 0.0001 \\ \text { Lat } & -2.11114 & 0.1814 & -11.6 & \leq 0.0001 \end{array}    Write a brief report based on this regression. Explain in words and numbers what this equation says about the relationship between average January low temperature and latitude. Discuss the R2 value and t-ratios. We will attempt to make a regression model to help account for mean January temperature and to understand the effects of
the various predictors.
At each step of the analysis you may assume that things learned earlier in the process are known.
Units Note: The "degrees" of temperature, given here on the Fahrenheit scale, have only coincidental language relationship to
the "degrees" of longitude and latitude. The geographic "degrees" are based on modeling the Earth as a sphere and dividing it
up into 360 degrees for a full circle. Thus 180 degrees of longitude is halfway around the world from Greenwich, England
(0°) and Latitude increases from 0 degrees at the Equator to 90 degrees of (North) latitude at the North Pole.  Here are data about the average January low temperature in cities in the United States, and factors that might allow us to predict temperature. The data, available for 55 cities, include:   We will attempt to make a regression model to help account for mean January temperature and to understand the effects of the various predictors. At each step of the analysis you may assume that things learned earlier in the process are known. Units Note: The  degrees  of temperature, given here on the Fahrenheit scale, have only coincidental language relationship to the  degrees  of longitude and latitude. The geographic  degrees  are based on modeling the Earth as a sphere and dividing it up into 360 degrees for a full circle. Thus 180 degrees of longitude is halfway around the world from Greenwich, England (0°) and Latitude increases from 0 degrees at the Equator to 90 degrees of (North) latitude at the North Pole.   -Here is the corresponding regression table: Dependent variable is: JanTemp  \mathrm { R }  squared  = 71.9 \% \quad \mathrm { R }  squared (adjusted)  = 71.3 \%   s = 7.222  with  55 - 2 = 53  degrees of freedom    \begin{array}{lllll} \text { Source } & \text { Sum of Squares } & \text { df } & \text { Mean Square } & \text { F-ratio } \\ \text { Regression } & 7061.32 & 1 & 7061.32 & 135 \\ \text { Residual } & 2764.21 & 53 & 52.1549 & \end{array}    \begin{array}{lllll} \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\ \text { Intercept } & 108.805 & 7.146 & 15.2 & \leq 0.0001 \\ \text { Lat } & -2.11114 & 0.1814 & -11.6 & \leq 0.0001 \end{array}    Write a brief report based on this regression. Explain in words and numbers what this equation says about the relationship between average January low temperature and latitude. Discuss the R2 value and t-ratios.
-Here is the corresponding regression table: Dependent variable is: JanTemp
R\mathrm { R } squared =71.9%R= 71.9 \% \quad \mathrm { R } squared (adjusted) =71.3%= 71.3 \%
s=7.222s = 7.222 with 552=5355 - 2 = 53 degrees of freedom


 Source  Sum of Squares  df  Mean Square  F-ratio  Regression 7061.3217061.32135 Residual 2764.215352.1549\begin{array}{lllll}\text { Source } & \text { Sum of Squares } & \text { df } & \text { Mean Square } & \text { F-ratio } \\\text { Regression } & 7061.32 & 1 & 7061.32 & 135 \\\text { Residual } & 2764.21 & 53 & 52.1549 &\end{array}

 Variable  Coefficient  SE(Coeff)  t-ratio  P-value  Intercept 108.8057.14615.20.0001 Lat 2.111140.181411.60.0001\begin{array}{lllll}\text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Intercept } & 108.805 & 7.146 & 15.2 & \leq 0.0001 \\\text { Lat } & -2.11114 & 0.1814 & -11.6 & \leq 0.0001\end{array}

Write a brief report based on this regression. Explain in words and numbers what this
equation says about the relationship between average January low temperature and
latitude. Discuss the R2 value and t-ratios.


Definitions:

Turnover Rates

The rate at which employees leave a company within a certain period, which can be an indicator of job satisfaction and organizational health.

Validity of Data

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Compensation Levels

Refers to the tiers or categories of payment provided to employees, often based on their role, experience, and performance, within an organization.

Wage Gap

The difference in average earnings between different groups of workers, often highlighted between genders, races, or socioeconomic statuses.

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