Chapter 4, Problem 2.2Q

Summary Introduction

Interpretation: The total cost for a C’s Summer short cruise carrying 2,500 passengers is to be predicted.

Concept Introduction: The following formulas will be used −

  $S_{xx}={\displaystyle \sum _{i=1}^n{x}_i^2-\frac{1}{n}}{\left({\displaystyle \sum _{i=1}^n{x}_i}\right)}^2$

  $S_{yy}={\displaystyle \sum _{i=1}^n{y}_i^2-\frac{1}{n}}{\left({\displaystyle \sum _{i=1}^n{y}_i}\right)}^2$

  $S_{xy}={\displaystyle \sum _{i=1}^n{x}_i{y}_i-\frac{1}{n}}\left({\displaystyle \sum _{i=1}^n{y}_i}\right)\left({\displaystyle \sum _{i=1}^n{x}_i}\right)$