All categories

3 years ago

PLEASE HELPPP ME!!!! don’t put the link/ file things it gives me ur info and then i can hack;)

Mathematics

1 answer:

kramer3 years ago

8 0

Answer:

it will go up as all the groups will be removed from lower side reducing it's weights

You might be interested in

Daisy is making tablecloths for all the picnic tables. She has 15 yards of fabric to make 6 tablecloths. How much fabric will sh

sveticcg [70]

2.5 of cloth for each tablecloth.

15/6 is to 2.5

3 0

3 years ago

Read 2 more answers

Banking fees have received much attention during the recent economic recession as banks look for ways to recover from the crisis

alex41 [277]

Answer:

a) The 95% confidence interval to estimate the average fee for the population is between $11.65 and $12.79

b) $0.57

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96*\frac{1.86}{\sqrt{41}} = 0.57$

So the answer for b) is $0.57.

The lower end of the interval is the sample mean subtracted by M. So it is 12.22 - 0.57 = $11.65

The upper end of the interval is the sample mean added to M. So it is 12.22 + 0.57 = $12.79

The 95% confidence interval to estimate the average fee for the population is between $11.65 and $12.79

6 0

3 years ago

Which of the following is a solution of y - x < -3? (6, 2) (2, 6) (2, -1)

Snowcat [4.5K]

Personally I'd solve this inequality for y first: y < x-3.

That immediately eliminates (6,2) and (2,6).

Starting from y < x-3 and letting 2 sub for x and -1 sub for y, is the following true or false?

-1 < 2 -3 NO. -1 < -1 is false. Was there a fourth answer choice?

5 0

3 years ago

Read 2 more answers

Vicki is 5 years older than twice Ella's age, a.

Anettt [7]

Answer:

5+3a=29

Step-by-step explanation:

let Ella's age be 'a'

Vicki's age=5+2a

sum of their ages= 29

So, the equation is