The manufacturers of a chemical used in flea collars claim that under standard test conditions each additional unit of the chemical will bring about a reduction of 5 fleas (i. e. where Xj=amount of chemical and YJ=B0+B1⋅XJ+EJ, H0:B1=−5) Suppose that a test has been conducted and results from a computer include: Intercept = 60 Slope = −4 Standard error of the regression coefficient = 1.0 Degrees of Freedom for Error = 2000 95% Confidence Interval for the slope −2.04, −5.96 Is this evidence consistent with the claim that the number of fleas is reduced at a rate of 5 fleas per unit chemical?

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points