An analysis of laboratory data collected with the goalof modeling the weight (in grams) of a bacterial cultureafter several hours of growth produced the

waigaK 2020-11-26 Answered

An analysis of laboratory data collected with the goal of modeling the weight (in grams) of a bacterial culture after several hours of growth produced the least squares regression line log(weight)=0.25+0.61hours. Estimate the weight of the culture after 3 hours.

A) 0.32 g

B) 2.08 g

C) 8.0 g

D) 67.9 g

E) 120.2 g

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Expert Answer

Aniqa O'Neill
Answered 2020-11-27 Author has 100 answers

Least-squares criterion figures out the line that has the smallest sum of squared errors and is the one that fits the data best. The line that best fits a set of data points, according to the least-squares criterion, is known as the regression line. It is essential for making predictions. The regression equation is y=a+bx where,
a=intercept
b=slope
x=independent variable
y=independent variable

The given equation is weight=0.25+0.61hrs

The value of x is 3. weight=0.25+0.61hrs
=0.25+0.613
=0.25+1.83
2.08

Therefore the b part is correct.

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