Mathematics, 02.12.2019 22:31 rainbowsadie7140

Suppose that you are given a data set which predicts the price of coffee based on loss of forest in indonesia. software tells us that the least-squares slope from 10 different observations is b = 0.549 with standard error seb = 0.096. use 2 decimal places.
1. what is the t statistic for testing h0: β = 0?
2. how many degrees of freedom does t have?
use a t-table to approximate the p-value of t against the one-sided alternative ha: ? > 0. what do you conclude? (select one)
we have no evidence (p > 0.05) that the population slope ? is positive.
we have overwhelming evidence (p < 0.001) that the population slope ? is positive.
we have slight evidence (0.05 < p < 0.1) that the population slope ? is positive.
we have strong evidence (0.005 < p < 0.01) that the population slope ? is positive.

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:20

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

Answers: 1

Answer

Mathematics, 21.06.2019 18:30

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Answers: 1

Answer

Mathematics, 21.06.2019 19:00

Can someone me out here number 4 plz

Answers: 1

Answer

Mathematics, 22.06.2019 00:30

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21