Instruction 12 $\text { Regression statistics }$ $\text { ANOVA }$

question 57

Short Answer

Instruction 12.35
A computer software developer would like to use the number of downloads (in thousands) for the trial version of his new shareware to predict the amount of revenue (in thousands of dollars) he can make on the full version of the new shareware. Following is the output from a simple linear regression along with the residual plot and normal probability plot obtained from a data set of 30 different sharewares that he has developed:
$\text { Regression statistics }$
$\begin{array}{|l|l|}\hline \text { MultipleR } & 0.8691 \\\hline \text { R Square } & 0.7554 \\\hline \begin{array}{l}\text { Adjusted R } \\\text { Square }\end{array} & 0.7467 \\\hline \text { Standard Error } & 44.4765 \\\hline \text { Observations } & 30.0000\\\hline \end{array}$

$\text { ANOVA }$
$\begin{array}{|l|l|l|l|l|l|}\hline & d f & S S & M S & F & \begin{array}{l}\text { Significance } \\F\end{array} \\\hline \text { Regression } & 1 & 171062.9193 & 171062.9193 & 86.4759 & 0.0000 \\\hline \text { Residual } & 28 & 55388.4309 & 1978.1582 & & \\\hline \text { Total } & 29 & 226451.3503 & & & \\\hline\end{array}$

$\begin{array}{|l|l|l|l|l|l|l|}\hline & \text { Coefficients } & \begin{array}{l}\text { Standard } \\\text { Error }\end{array} & \text { t Stat } & p \text {-value } & \text { Lower 95\% } & \text { Upper 95\% } \\\hline \text { Intercept } & -95.0614 & 26.9183 & -3.5315 & 0.0015 & -150.2009 & -39.9218 \\\hline \text { Download } & 3.7297 & 0.4011 & 9.2992 & 0.0000 & 2.9082 & 4.5513 \\\hline\end{array}$



-Referring to Instruction 12.35,what are the lower and upper limits of the 95% confidence interval estimate for the mean change in revenue as a result of a 1 thousand increase in the number of downloads?

Understand the cash budgeting process, including the calculation of necessary financing.

Grasp the concept and application of zero-based budgeting.

Analyze and prepare production budgets based on sales forecasts and inventory requirements.

Calculate cash collections and understand the impact of credit sales on cash flow.

---

Definitions:

Legal Costs

Refers to the expenses associated with legal services, including lawyer fees, court fees, and any other expenditures incurred during the legal process.

Limbic System

A complex system of nerves and networks in the brain, involved in emotions, behavior, and long-term memory.

Frontal Lobe

The area of the brain located in the front part of the head, involved in executive functions such as reasoning, planning, problem-solving, and control of movement and emotions.

Postconventional Morality

The stage of moral development characterized by an individual's reasoning based on personal principles of justice and rights.