Mathematics, 05.05.2020 06:10 bellabrill

Old Faithful is a geyser at Yellow Stone National Park. Two variables are measured on the geyser such that n = 20 (x, y) pairs were obtained. The two variables are:
1. Duration of an eruption (minutes).
2. TimeNext: Time until next eruption (minutes).
Below is the regression analysis from Minitab.

Coefficients
Term Coef SE Coef T-Value P-Value VIF
Constant 34.98 1.35 25.89 0.000
Duration 10.659 0.366 29.13 0.000 1.00

Model Summary
S R-sq R-sq(adj) R-sa(pred)
6.73929 78.82% 78.72% 78.46%

Regression Equation
TimeNext = 34.98 + 10.659 Duration

When considering all of the provided information which are true statements?

a) 78.82% of the variation in the time until the next eruption can be explained by the duration of an eruption
b) the degrees of freedom used with the slope test is 19
c) as a predictor, duration of an eruption is statistically significant
d) the parameter used with the slope test is b1

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 16:00

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Answers: 1

Answer

Mathematics, 21.06.2019 19:00

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Answers: 2

Answer

Mathematics, 21.06.2019 22:00

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Answers: 2

Answer

You know the right answer?

Old Faithful is a geyser at Yellow Stone National Park. Two variables are measured on the geyser suc...

Questions

Mathematics, 17.09.2019 19:30

Aquadrilateral has angles that measure 60°, 95°, and 150°. what is the measure of the fourth angle? a. 25° b. 55°