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2 years ago

Please help me with the answer ASAP

Mathematics

1 answer:

Gnom [1K]2 years ago

6 0

Answer:

105/5 i believe

Step-by-step explanation:

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A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sampl

Zinaida [17]

Answer:

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$p=\frac{x}{n}$

$p=\frac{12}{50}$

$p=0.24$

$q=1-p=1-0.24=0.76$

$\frac{\alpha }{2} =\frac{\0.01 }{2}=0.005$

$p-z_{\frac{\alpha }{2}} \sqrt{\frac{pq}{n} }$

$0.24-z_{0.005} \sqrt{\frac{0.24*0.76}{50} }$

$0.24-2.58(0.0604)$

$0.24-0.155832$

By rounding to three decimal places we get,

$0.084$

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

3 0

2 years ago

4x + 7 = 23slove this

Juli2301 [7.4K]

Given:

4x + 7 = 23

Let's solve for x.

First Step:

Subtract 7 from both sides

4x + 7 - 7 = 23 - 7

4x = 16

Next Step:

DIvide both sides by 4

$\begin{gathered} \frac{4x}{4}=\frac{16}{4} \\ \\ x\text{ = 4} \end{gathered}$

ANSWER:

x = 4

4 0

5 months ago

0.5y-2 2/5=1/2y+2.4 Help :l

lesya [120]

Answer:

hey mr dsssssssssssssssssssadsdasdsadsadasdsdsd

4 0

2 years ago

Find the area of a cube. 5in, 5in, 5 in

Verizon [17]

Answer:

150in²

Step-by-step explanation:

The surface area of a cube is given by the following equation where s is the length of a side:

$A=6s^2$

So, in this case, s is equal to 5:

$A = 6(5)^2 = 6(25)=150in^2$

6 0

2 years ago

Please answer it due tonight

madam [21]

Answer:

the value of angle W = 81° and x = 35°

Step-by-step explanation:

the explanation is in the attached picture

3 0

2 years ago

Read 2 more answers