All categories

2 years ago

A computer company wants to determine the proportion of defective computer chips from a day's production. A

Mathematics

1 answer:

ozzi2 years ago

5 0

Answer:

0.12 ± 1.96 * √(0.12(0.88) / 100)

Step-by-step explanation:

Confidence interval :

Phat ± Zcritical * √(phat(1 -phat) / n)

Phat = 12/100 = 0.12

1 - phat = 0.88

Zcritical at 95% = 1.96

Hence, we have :

0.12 ± 1.96 * √(0.12(0.88) / 100)

0.12 ± 1.96 * 0.0324961

0.12 ± 0.0636924

Lower boundary = (0.12 - 0.0636924) = 0.0563

Upper boundary = 0.12 + 0.0636924 = 0.1837

You might be interested in

I need help on figuring out the two ways.

Ymorist [56]

I believe the diagonals would be perpendicular. So if it's on a graph/coordinate plane the slopes would be opposite. And all the sides would be the same length/2 sets are parallel/same slope

4 0

3 years ago

One high speed Internet provider has a $39 setup fee and charges $40 per month. Another

zvonat [6]

Answer:

2.1 months

Step-by-step explanation:

Let x represent the number of months

Set up expressions to represent the cost of each Internet provider

40x + 39 will represent the first one

30x + 60 will represent the other

Set these equal to each other and solve for x:

40x + 39 = 30x + 60

10x + 39 = 60

10x = 21

x = 2.1

So, the cost will be the same in 2.1 months

8 0

3 years ago

Solve each equation.<br>1) 10 = b + 4 - 76

Anna71 [15]

Answer:the answer is 82 photo math helps a lot with these type of questions

Step-by-step explanation:

7 0

3 years ago

Write an inverse <br>f(x)= 1/2 (3-3x)

jonny [76]

Answer is : f^-1 (x)=-2x/3+1

6 0

3 years ago

5x+2(×+1)+3............

alexdok [17]

5x + 2(x + 1) + 3 = 7x + 5

Hope this helps you

Brainliest would be appreciated!

-AaronWiseIsBae

5 0

3 years ago