A regression line is used to satisfactorily describe the relationship between amount of car surface per square inch and drying time (in minutes) of 24 cars in a car wax drying time study. The regression analysis is shown. Variable
Coeff SE Coeff t Ratio p-Value
Constant 4.5893 0.2784 16.49 0.0023
Amount of car surface
5.8493
0.3827 15.30 0.0045
R squared = 89.1%
R squared (adj) = 90.1%
Which expression should be used to compute a 96 percent confidence interval for the slope of the regression line?

a
5.8493 ± 2.172(0.3827)

b
5.8493 ± 2.183(0.3827)

c
5.8493 ± 2.177(0.3827)

d
4.5893 ± 2.183(0.2784)

e
4.5893 ± 2.177(0.2784)

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.