subject
Mathematics, 24.06.2019 15:30 vavzincak

Consider the model output below. use it to answer questions 14 – 16.e. regression analysis: avg. tot. score versus avg. salary, %takersmodel summary s r-sq r-sq(adj) r-sq(pred)33.6877 80.56% 79.73% 78.08%coefficientsterm coef se coef t-value p-value vifconstant 987.9 31.9 30.99 0.000avg. salary 2.18 1.03 2.12 0.039 1.61%takers -2.779 0.228 -12.16 0.000 1.61prediction for avg. tot. scorevariable settingavg. salary 40%takers 50 fit se fit 95% ci 95% pi936.181 6.34430 (923.418, 948.945) (867.219, 1005.14)14. under what conditions are the confidence and prediction intervals computed above valid? 15. assuming that the conditions of question 14 are satisfied, which of the following statements is accurate? a. we are 95% confident that a state with an average teacher salary of $40,000 and 50% of eligible students taking the sat will have an ats between 867.219 and 1005.14.b. we are 95% confident that the average ats of all states with an average teacher salary of $40,000 and 50% of eligible students taking the sat will be between 923.418 and 948.945.c. both of the above. d. none of the above

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, aguerobia
What is the measure of angle tvu shown in the diagram below
Answers: 2
image
Mathematics, 21.06.2019 18:00, huntbuck14
What is the range for 31,39,29,34,37,24,36,33,34,28
Answers: 1
image
Mathematics, 21.06.2019 19:30, santileiva123199
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
Answers: 1
image
Mathematics, 21.06.2019 19:40, evarod
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
You know the right answer?
Consider the model output below. use it to answer questions 14 – 16.e. regression analysis: avg. to...

Questions in other subjects:

Konu
History, 27.01.2021 18:00
Konu
Chemistry, 27.01.2021 18:00
Konu
Mathematics, 27.01.2021 18:00