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2 years ago

Why is it important to avoid a smaller sample size?

2 answers:

5 0

Answer:The importance of sample size calculation cannot be overemphasized. A research can be conducted for various objectives. A smaller sample will give a result which may not be sufficiently powered to detect a difference between the groups and the study may turn out to be falsely negative leading to a type II error.

tatiyna2 years ago

5 0

Answer:

It is not necessarily important to avoid smaller sample sizes but if is way more beneficial if you collect a larger sample size.

Step-by-step explanation:

Later sample sizes help you to get a more accurate result. While smaller sample sizes are less reliable. Hope I helped sorry if not! Have a wonderful day!

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Find the slope of the line passing through the points ( 2, 6) & (6, 5).

umka21 [38]

The slope is -1/4
hope this helped

8 0

3 years ago

Read 2 more answers

Determine any asymptotes (Horizontal, vertical or oblique). Find holes, intercepts and state it's domain.

vesna_86 [32]

Factorize the denominator:

$\dfrac{x^2-4}{x^3+x^2-4x-4}=\dfrac{x^2-4}{x^2(x+1)-4(x+1)}=\dfrac{x^2-4}{(x^2-4)(x+1)}$

If $x\neq\pm2$ , we can cancel the factors of $x^2-4$ , which makes $x=-2$ and $x=2$ removable discontinuities that appear as holes in the plot of $g(x)$ .

We're then left with

$\dfrac1{x+1}$

which is undefined when $x=-1$ , so this is the site of a vertical asymptote.

As $x$ gets arbitrarily large in magnitude, we find

$\displaystyle\lim_{x\to-\infty}g(x)=\lim_{x\to+\infty}g(x)=0$

since the degree of the denominator (3) is greater than the degree of the numerator (2). So $y=0$ is a horizontal asymptote.

Intercepts occur where $g(x)=0$ ( $x$ -intercepts) and the value of $g(x)$ when $x=0$ ( $y$ -intercept). There are no $x$ -intercepts because $\dfrac1{x+1}$ is never 0. On the other hand,

$g(0)=\dfrac{0-4}{0+0-0-4}=1$

so there is one $y$ -intercept at (0, 1).

The domain of $g(x)$ is the set of values that $x$ can take on for which $g(x)$ exists. We've already shown that $x$ can't be -2, 2, or -1, so the domain is the set

$\{x\in\mathbb R\mid x\neq-2,x\neq-1,x\neq2\}$

8 0

2 years ago

When 80% of a is added to the number, the result is 252. What is the number

wariber [46]

Use the equation .8x + x = 252
x is the number, and .8 is the decimal equivalent of 80%.

1.8x = 252

x = 140

6 0

3 years ago

Moussa delivered 3/8 of newspaper on his route in the 1st hour and 4/5 of the rest in the second hour. What fraction of the news

shutvik [7]

I know a trick! Go onto google... and search up this problem online without any capitals... all lowercase, you can sometimes find the answer to this, or the whole page!

8 0

2 years ago

Teesha is in French club. There are 10 freshman, 12 sophomores, 15 juniors, and 30 seniors in the club. The advisor is going to

FrozenT [24]

We know that

In French club there are
10 freshman
12 sophomores
15 juniors
30 seniors

total of the members------> (10+12+15+30)=67
total freshman-----> 10

so
the probability that a freshman will be chosen=10/67
and
the probability that a freshman will not be chosen=(67-10)/67
the probability that a freshman will not be chosen=57/67---> 0.8507
0.8507= 85.07%

the answer is
the probability that a freshman will not be chosen is 85.07%

6 0

3 years ago