2 years ago

I need help plz with this.

Mathematics

1 answer:

mars1129 [50]2 years ago

3 0

Answer:

if you take away 94.75-72.85 you will get 21.90 but i dont know how much higher

i hope i helped

You might be interested in

A political action committee is interested in finding out what proportion of voters will

balandron [24]

Answer:

$n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875$

And rounded up we have that n=31

Step-by-step explanation:

First we need to find the critical value for the margin of error desired. The confidence level is 0.95 so then the significance is $\alpha=1-0.95=0.05$ and the critical value for this case would be:

$z_{\alpha/2} =\pm 1.96$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.09$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

The estimated proportion for this case is $\hat p =0.93$ . And replacing into equation (b) the values from part a we got:

$n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875$

And rounded up we have that n=31

4 0

3 years ago

Y=6*46x for x=-3 =? a)3/32 b)3/8 c)-72 d)3/128

sergey [27]

- 828 is your answer

3 0

2 years ago

A hotel has 45 rooms. The hotel is building a new wing that will contain 25 rooms. How many rooms total will the hotel have afte

kaheart [24]

Add 45 and 25 to get 70 rooms.

4 0

2 years ago

Read 2 more answers

Which statement is true about the number of faces on any prism?

antiseptic1488 [7]

<span>B. It is the number of edges on one base plus 2.</span>

7 0

2 years ago

Brian pull vaulted over a bar that was 189 inches high how many more inches what do you need to vote to go over a bar that was 1

Harman [31]

He Needs 3 More Inches Because 16 Feet Converted Into Inches Is 192 Inches. If You Do 192 - 189 You Have 3 Left Over. Therefore He Needs 3 More Inches To Pull Vault Over A Bar That Is 16 Feet High

4 0

2 years ago