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sveta [45]
2 years ago
5

How does sample size affect determinations of statistical significance? The smaller the sample size, the more confident one can

be in one's decision to reject or retain the null hypothesis. The smaller the sample size, the greater the probability that the variable has an effect. The larger the sample size, the more accurate the estimation of the true population value. The larger the sample size, the greater the probability that the variable has an effect.
Mathematics
1 answer:
marin [14]2 years ago
7 0

Answer:

The larger the sample size, the more accurate the estimation of the true population value.

Step-by-step explanation:

  • As large will be the sample size more data will be shown and more are the c c changes of it being an estimate of a true population. The sample size can be determined on the basis of use of experience, target variance, confidence level, and target for power.
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PLZ HELP I SUCK AT MATH :( JUST LIKE MY USERNAME SAYS :(
Citrus2011 [14]

Answer:

Option C and Option D have exactly one solution.

Step-by-step explanation:

The equation will have exactly one solution when it completely solves and we get value of x.

Checking all choices

(Choice A)

-19x + 18 = -19x + 18

-19x+19x=18-18

0=0

(infinite solutions)

(Choice B)

-19x -18 = -19x + 18

-19x+19x=18+18

0≠36

(no solution)

(Choice C)

19x + 18 = -19x + 18

19x+19x=18-18

38x=0

x=0

(One solution)

(Choice D)

19x - 18 = -19x + 18

19x+19x=18+18

38x=36

x=36/38

x=18/19

(One solution)

So, Option C and Option D have exactly one solution.

4 0
3 years ago
A ball is dropped from the top of a building. The distance in feet above the ground, represented by h(t), after t seconds can be
ikadub [295]

Answer:

324 feet

Step-by-step explanation:

h(3) = 16(3)^2 + 180

h(3) = 16(9) + 180

h(3) = 144 + 180

h(3) = 324

3 0
3 years ago
nate runs 8 miles each week write an expression for the number of miles he runs in ‘n’ weeks find the number of miles neutrons i
Studentka2010 [4]

Answer:

0ne week= 8 miles

W=5n

4 0
3 years ago
Write as a decimal and percent  <br><br>350/100
goldenfox [79]
First, let's simplify this a bit ok?

\frac{350}{100} = \frac{35}{10}

Now, as a decimal: 3.5

As percent you multiply the number by 100 % (which is 1, and you an always multiply by 1):

3.5 *100%=350 %.
7 0
3 years ago
Sometimes a change of variable can be used to convert a differential equation y′=f(t,y) into a separable equation. One common ch
enot [183]

Answer:

y=\frac{-7t^2+22t-7}{7t-22}

Step-by-step explanation:

We are given that

Initial value problem

y'=(t+y)^2-1, y(3)=4

Substitute the value z=t+y

When t=3 and y=4 then

z=3+4=7

y'=z^2-1

Differentiate z w.r.t t

Then, we get

\frac{dz}{dt}=1+y'

z'=1+z^2-1=z^2

z^{-2}dz=dt

Integrate on both sides

-\frac{1}{z}dz=t+C

z=-\frac{1}{t+C}

Substitute t=3 and z=7

Then, we get

7=-\frac{1}{3+C}

21+7C=-1

7C=-1-21=-22

C=-\frac{22}{7}

Substitute the value of C then we get

z=-\frac{1}{t-\frac{22}{7}}

z=\frac{-7}{7t-22}

y=z-t

y=\frac{-7}{7t-22}-t

y=\frac{-7-7t^2+22t}{7t-22}

y=\frac{-7t^2+22t-7}{7t-22}

8 0
3 years ago
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