Mathematics, 17.12.2019 06:31 cathyfrawley

(2 points) the director of an alumni association for a university wants to look at the relationship between the number of years since graduation and the amount of monetary contribution an alumnus makes to the university. he collects data on 50 alumni who have made contributions this year and fits a least squares regression line to the data, with the monetary contribution as the response variable. james, one of the 50 alumni, has made a contribution which gives a negative residual. which of the following statements must be true about james' actual contribution?

(a) it is less than the contribution predicted by the regression line.
(b) it is less than the average contribution made by the 50 alumni.
(c) both (a) and (b)
(d) neither (a) nor (b).

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 14:30

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Answers: 3

Answer

Mathematics, 21.06.2019 19:30

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Answers: 1

Answer

Mathematics, 21.06.2019 21:10

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Answers: 3

Answer

Mathematics, 21.06.2019 21:40

The tile along the edge of a triangular community pool needs to be replaced? ?

Answers: 2

Answer

You know the right answer?

(2 points) the director of an alumni association for a university wants to look at the relationship...

Questions

Mathematics, 29.01.2020 12:00

What is the perimeter of the coordinates w(6,0) x(0,0) y(0,5) z(6,5)...