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2 years ago

13

Suppose you wish to perform a hypothesis test for a population mean. suppose that the population standard diviation is unknown,

the population is skwed to the right and the sample is large. woudl you perform a z test or a t test

1 answer:

Elenna [48]2 years ago

7 0

You would Perform a z test

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To use a compass to find the midpoint of a line segment, Rebecca draws two arcs of equal radius from each of the two endpoints o

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We are given a line segment with two points on each end. Rebecca draws two arcs with equal radius from each point. Now, the intersection of the two arcs is the midpoint of the line. This can be explained by the radius of the arcs. Since they are equal, meaning they have the same distance from each point. Thus, the midpoint of the line.

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3 years ago

4x when x = 3/4 (I really need help)

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3 years ago

The heights of women aged 20 to 29 are approximately normal with mean 64 inches and standard deviation 2.7 inches. Men the same

san4es73 [151]

Answer:

Step-by-step explanation:

$Z=\frac{x-mu}{\sigma }$

X - Heights of women aged 20 to 29: X is N(64, 2.7)

Y - Heights of men aged 20 to 29: X is N(69.3, 2.8)

a) X=6'=72"

Z= $\frac{72-64}{2.7} =2.963$

b) Y = 72"

z= $\frac{72-69.3}{2.8} =0.965$

c) 72' women can be taken as very tall but men moderately taller than average

d) Y<5'5" =65"

Z< $\frac{65-69.3}{2.8} =-1.536$

e) X>73"

Z> $\frac{73-64}{2.7} =3.33$

Almost 0% can be taken

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5 0

3 years ago

Can any help me please

PSYCHO15rus [73]

A = 8i + 6j
b = 4i + 5j

ab = (8i + 6j)(4i + 5j)
ab = 8i(4i + 5j) + 6j(4i + 5j)
ab = 8i(4i) + 8i(5j) + 6j(4i) + 6j(5j)
ab = 32i² + 40ij + 24ij + 30j²
ab = 32i² + 64ij + 30j²
ab = <32, 30>

The answer is D.

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2 years ago

What is x^2-28-3x ? ( x^2 means x squares )

Verizon [17]

This is the way to solve the problem

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3 years ago

Read 2 more answers