Question

1. monthly private school tuition based on the average number of weeks in attendance is predicted using the least-square regression line, $hat{y}=265.9+93.4x$, where $hat{y}$ represents the predicted monthly expense and x represents the average number of weeks in attendance. a child attends private school an average of 3.5 weeks and has a monthly cost of $595. what is the residual for the child?-2.22.23.52-3.52question 11 (multiple choice worth 10 points)(02.08h mc)after many phone calls from customers who had dined at a restaurant the previous day, the management team wanted to determine the source of an outbreak of food poisoning. they called all 300 people who had dined that day and found that 40% of the customers did not have food poisoning, of which 90% did not eat chicken. the data also determined that of those who had food poisoning, 40% ate chicken. the following tree diagram shows the conditional relative frequencies.

Explanation:

Step1: Calculate predicted tuition

Substitute $x=3.5$ into $\hat{y}=265.9+93.4x$:
$\hat{y}=265.9+93.4\times3.5$
$\hat{y}=265.9+326.9=592.8$

Step2: Compute residual

Residual = Actual value - Predicted value
$\text{Residual}=595-592.8$

Answer:

2.2

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For Question 11, the problem is incomplete (no tree diagram or specific question asked). Please provide the full details of Question 11 to assist you further.