Need some help with this please

Which is the best description of the shape of the distribution of the number of pets? Use the drop-down menu to complete the sta

maxonik [38]

Roughly symmetric is the answer

8 0

3 years ago

As the office purchasing manager you have to buy printer paper. Your last

bixtya [17]

Answer:

a/1/$400

Step-by-step explanation:

240 divided by 12=20

20x10x2=$400

3 0

2 years ago

Which expressions are equivalent?

nasty-shy [4]

The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y

6 0

3 years ago

If a random sample of size nequals=6 is taken from a population, what is required in order to say that the sampling distributio

goldenfox [79]

Answer:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

In order to satisfy this distribution we need that each observation on this case comes from a normal distribution, because since the sample size is not large enough we can't apply the central limit theorem.

Step-by-step explanation:

For this case we have that the sample size is n =6

The sample man is defined as :

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And we want a normal distribution for the sample mean

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

In order to satisfy this distribution we need that each observation on this case comes from a normal distribution, because since the sample size is not large enough we can't apply the central limit theorem.

So for this case we need to satisfy the following condition:

$X_i \sim N(\mu , \sigma), i=1,2,...,n$