If $S _ { x ,y } = - 289.17 \text { and } S _ { xx} = 340.2 \text {, }$

question 24

Short Answer

If $S _ { x ,y } = - 289.17 \text { and } S _ { xx} = 340.2 \text {, }$ then the least squares estimate of the slope coefficient $\beta _ { 1 }$ of the true regression line $y = \beta _ { 0 } + \beta _ { 1 } x \text { is } \hat { \beta } _ { 1 }$ = __________.

Describe the difference between serif and sans-serif typefaces and their applications.

Apply design principles such as contrast, alignment, and repetition to enhance document clarity and reader engagement.

Understand the legal and ethical considerations of web accessibility.

Understand the impact of typography on document design and readability.