To test upper h 0: pequals0.40 that a population proportion equals 0.40, the test statistic is a z-score that measures the number of standard errors between the sample proportion and the upper h 0 value of 0.40. if zequals0.8, do the data support the null hypothesis, or do they give strong evidence against it?

i used to know but i learned it a long time ago sorry

step-by-step explanation:

abde or 1,2,4, 5 is the answer

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation: