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3 years ago

Х У о 12 1 8 N 4 3 о 4 4

Mathematics

1 answer:

Softa [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Sorry im in 5th grade.

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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor

leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is $0.016 \le C \le 0.404$

Step-by-step explanation:

The sample size is $n = 20$

The number planning to increase workforce is $x = 3$

The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

$p = \frac{x+2}{n+4}$

substituting values

$p = \frac{3+2}{20+4}$

$p =0.21$

The z-critical value at confidence level of 98% is

$z_{c}=z_{0.98} = 2.33$

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

$C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }$

substituting values

$C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }$

$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

7 0

3 years ago

What is the distance between (Negative 5, 4) and (Negative 1, 4)?

Marina CMI [18]

Answer:

4 units

Step-by-step explanation:

It would be 4 units because the units can't be negative if you are asking for the distance between them.

6 0

4 years ago

Read 2 more answers

What is the value of the x variable in the solution to the following system of equations? (1 point) 4x + 2y = 6 x − y = 3 −1 5 −

atroni [7]

Equations are: 4x + 2y = 6
x - y = 3
Multiply 2nd equation by 2,
2x - 2y = 6
Add both the equations,
6x = 12
x = 12/6
x = 2

In short, Your Answer would be 2

Hope this helps!

7 0

3 years ago

Kara earns 12 cent for each paper she delivers. If she delivers papers to 42 customers each day, how much does she earn in 1 wee

Andrew [12]

12x42=504

504 cents earned every day when 42 papers are delivered

For a week= 504x7

3528cents

6 0

3 years ago

Read 2 more answers

9+m/3=2help me please

Verizon [17]

Answer:

m = -21

Step-by-step explanation:

9+m/3=2

1. Subtract 9 from both sides

9 - 9 + m/3 = 2 - 9

m/3 = -7

2. Multiply both sides by 3

3 (m/3) = -7 (3)

m = -21

6 0

3 years ago