Suppose we have samples of size n and m for two different normal populations. X1, X2, . . . , Xn ∼ N(µx, σ2 x ) Y1, Y2, . . . , Ym ∼ N(µy, σ2 y ) where µx, µy are unknown, but variances σ 2 x , σ2 y are known.

(a) (2pts) Construct a point estimator for the difference in means, i. e. µx − µy.

y > 1/3x

y < = -x + 4

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the answer for your question is

step-by-step explanation:

110698.56 square miles

step-by-step explanation:

multiply 3.8 by 102

387.6

multiply 2.8 by 102

285.6

multiply those two to get

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.