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zhenek [66]
3 years ago
6

Suppose that the mean of the sampling distribution for the difference in two sample means is 0.

Mathematics
1 answer:
Simora [160]3 years ago
8 0

Answer:

Optin b is right

Step-by-step explanation:

given that the  mean of the sampling distribution for the difference in two sample means is 0.

This means that when two sample means are equal we get difference is 0 and this would be the point estimate of mean for differene of means distribution.

Hence the four options given can be analysed

. the two sample means are both 0.   -- False need not be 0 but equal

B. the two sample means are equal to each other.   -- True

C. the two population means are both 0.  -- False need not be 0

D. the two population means are equal to each oth  -- False only sample means are 0 and if sample represents population this may be 0

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Find the coordinates of the point P that divides the directed line segment from A to B in the given ratio. A (-5, 12) B (11, 0)
zhenek [66]

Answer:

(7, 3)

Step-by-step explanation:

Using the midpoint formula

M(X, Y) = {(ax1+bx2/a+b), ay1+by2/a+b}

X = ax1+bx2/a+b

X = -5(1)+3(11)/1+3

X = -5+33/4

X = 28/4

X = 7

Y = ay1+by2/a+b

Y = 1(12)+3(0)/1+3

Y = 12/4

Y = 3

Hence the coordinate of P is at (7, 3)

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PLZ HELP ASAP I WILL GIVE BRAINIEST TO FIRST PERSON TO ANSWER. question: Tahmar knows the formula for simple interest is I = Prt
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If you know the number of yards for a measurement, you can change that measure to meters by multiplying the number of yards by 0
guajiro [1.7K]
Question 1)

Let "y" denotes the number of yards and "m" denotes the number of meters. According to the give statement, measurement in yards can be changed to measurement in meters by multiplying the measure in yards by 0.9144.

So,

Measure in Meter = 0.9144 x Measure in Yards
m = 0.9144y

Question 2)

We are to convert 7200 yards into meters. Using the values in above equation we can write:

m = 0.9144 x 7200
m = 6583.68 meters

This means 7200 yards are equivalent to 6583.68 meters..

Question 3)

We are to convert 2500 meters to yards.
Using the value in above equation, we get:

2500=0.9144y
⇒
y = 2500/0.9144
y = 2734.03 yards

So this means 2500 meters are equivalent to 2734.03 yards.
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3 years ago
Use the Quadratic Formula to solve the equation x^2 - 6x = – 18.
Naya [18.7K]

Answer:

x=3±3i

Step-by-step explanation:

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3 years ago
Find the -intercept and the slope of the line 4x8y=3. Write your answers in simplest form.
goldfiish [28.3K]

The slope of the straight line is -1/2 whereas the y-intercept is 3/8.

<h3>What is defined as the equation of line in slope intercept form?</h3>

Recognize that the y-intercept is the point at which the graph intersects the y-axis; that's where we usually begin.

  • Determine the slope first, then the y-intercept. For the time being, just consider if the slope is either positive or negative.
  • The following are the variables that we will begin to use in our function:
  1. slope = m
  2. b = the y-intercept
  • The formula is y = mx + b. The variables x and y remain alphabets, but m and b have been replaced by numbers (for example, y = 2x + 4, slope = 2, and y-intercept = 4).

Because the two quantities in the equation are now the slope and the intercept, this equation is known as the slope-intercept form.

y = mx + b

Remember that the slope (m) is the number multiplied by x, while the intercept (b) is indeed the number added or subtracted.

The given equation is;

4x + 8y = 3

Re-arranging the equation;

8y = -4x + 3

Divide the whole equation by 8.

y = -4x/8 + 3/8

Further simplifying;

y = -x/2 + 3/8

Comparing the result with the general form of equation.

m = -1/2; which is the slope.

c = 3/8; which is the y-intercept.

Thus, the values for slope and y-intercept are estimated.

To know more about the slope-intercept form, here

brainly.com/question/9675233

#SPJ9

The correct question is-

Find the -intercept and the slope of the line 4x + 8y=3. Write your answers in simplest form.

3 0
1 year ago
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