Answer:
42÷7=6. that's all. that's my answer. but ask others
A recent increase in sales of microchips has forced a computer company to buy a new processing machine to help keep up with demand. The builders of the new machine claim that it produces fewer defective microchips than the older machine. From a random sample of 90 microchips produced on the old machine, 5 were found to be defective. From a random sample of 83 microchips produced on the new machine, 3 were found to be defective. The quality control manager wants to construct a confidence interval to estimate the difference between the proportion of defective microchips from the older machine and the proportion of defective microchips from the new machine.
The final question is;
Why is it not appropriate to calculate a two-sample z-interval for a difference in proportions?
Answer:
The normality of the sampling distribution of the difference in sample proportions cannot be established.
Step-by-step explanation:
To use the two-sample z-interval for a difference in proportions, some conditions must be met which help us to know the normality of the distribution.
The conditions are;
- The method of sampling for each population must be simple random sampling.
- The samples must be independent.
- Each sample must include at least 10 successes and 10 failures.
- Each population must be a minimum 20 times its sample.
In this case, we are not given the population size and as such we cannot ascertain the last condition I wrote above since the sample proportion we are given alone isn't sufficient. Also, they both don't include at least 10 failures. Thus the normality of the sample proportions cannot be established.
Answer: the normality of the sampling distribution of the difference in sample proportions cannot be established
Step-by-step explanation:
What is the value of the expression 25 ÷ 5 + (6 x 2) − 4?
Question 1 options:
7
9
12
13
Answer:
13
Step-by-step explanation:
25 / 5 + 12 - 4 = 5 + 12 - 4 = 17 - 4 = 13
The ratio of white marbles to black marbles in a jar is 4:9.
Check all statements that must be true based on the statement above.
If none of the statements is true, check "None of the above".
For every 4 white marbles in the jar, there are 9 black marbles.
For every 9 white marbles in the jar, there are 4 black marbles.
There are 9 white marbles to every 4 black marbles in the jar.
For every 4 black marbles in the jar, there are 9 white marbles.
None of the above
Jennifer says that you can also write (12 — 3) X 2 for the phrase in the example. Is Jennifer correct?
Answer:
Step-by-step explanation:
sorry to bother you but if you see a guy called breedall and sends you a sketchy link dont click it because its a virus on your computer
f(x) = 10x2 + 8, evaluate f(-3).
Answer:
98
Step-by-step explanation:
f(x) = 10x² + 8
= 10(-3)² + 8
= 10 (9) + 8
= 90 + 8
= 98
Solve for z: 14/5 = z/25?
Answer:
z=70
Step-by-step explanation:
Answer:
123
Step-by-step explanation:
123=)
Which number is not a perfect square?
44
25
49
289
Answer:
44 is not an perfect square
Answer:
44 is not a perfect square
Step-by-step explanation:
plz mark brainlyest if I am right
A spinner has 6 equal sections. There are 3 green sections and 3 yellow sections. The spinner is spun 24 times. Which proportion can be used to find the number of times, G, that the spinner could be expected to land on a green section
Answer:
I think that the answe round be 8 as 24/3 is 24
Answer:
Same I think that the answe round be 8 as 24/3 is 24
Step-by-step explanation:
what is the sum of 6/10 + 5/10
Answer:
1.1
Step-by-step explanation:
6/10 + 5/10 = 11/10, which is an improper fraction.
Every week, Katia's parents randomly decide whether she, her sister Tracy, or her brother Adan takes out the trash. Katia wants to use a fair number cube labeled 1 through 6 to simulate
the results of the next 5 weeks.
Select all of the possible ways of assigning the numbers that are fair,
Answer:
Step by step explanation:
.
The possible way of assigning the numbers that are fair:
(C) The numbers 1 and 2 represent Katia, 3 and 4 represent Tracy, and 5 and 6 represent Adan.
And (E) The numbers 1 and 6 represent Katia, 2 and 5 represent Tracy, and 3 and 4 represent Adan.
C and E are the correct options.
What is a combination?A combination is a selection of all or a portion of a group of items, regardless of the sequence in which the items are chosen.
Given:
Every week,
Katia’s parents randomly decide whether she, her sister Tracy, or her brother Adan takes out the trash.
Katia wants to use a fair number cube labeled 1 through 6 to simulate the results of the next 5 weeks.
The number of people = 3.
So, there are 6/3 = 2 distinct possible numbers.
From the given choices,
(C) The numbers 1 and 2 represent Katia, 3 and 4 represent Tracy, and 5 and 6 represent Adan.
And (E) The numbers 1 and 6 represent Katia, 2 and 5 represent Tracy, and 3 and 4 represent Adan.
Therefore, C and E are the correct statements.
To learn more about the combination;
https://brainly.com/question/29594894
#SPJ6
The complete question;
Every week, Katia’s parents randomly decide whether she, her sister Tracy, or her brother Adan takes out the trash. Katia wants to use a fair number cube labeled 1 through 6 to simulate the results of the next 5 weeks.
Select all the possible ways of assigning the numbers that are fair.
A)The number 1 represents Katia, 2 represents Tracy, and 3 represents Adan.
B) The odd numbers represent Katia, and the even numbers represent her other siblings.
C) The numbers 1 and 2 represent Katia, 3 and 4 represent Tracy, and 5 and 6 represent Adan.
D) The numbers 1 and 3 represent Katia, 2 and 5 represent Tracy, and 3 and 6 represent Adan.
E) The numbers 1 and 6 represent Katia, 2 and 5 represent Tracy, and 3 and 4 represent Adan.
what is the angle of r
Answer:
m∡R = 30.51°
Step-by-step explanation:
sin(R) = 33/65
arcsin(R) = 30.51
I suck at math and need to turn this in soon thank for any and all help!
Answer:
11=y÷6
Step-by-step explanation:
by the way i'm du/mb
A 2.6 L container of juice costs $3.00. How much are you paying for 1 L?
Which of the following is equivalent to the expression? Show work.
4x + 3(2x - 1) - 4x
A 6x - 3
B 6x + 3
C 14x - 3
D 14x + 3
Answer:
A
Step-by-step explanation:
4x + 3 (2x - 1) - 4x
4x + 6x - 3 -4x
4x + 6x - 3 - 4x
6x - 3
Hope I helped!
The sum of two square numbers is 65. The
square root of one of the numbers is 7. What is
the second square number?
Answer:
16
Step-by-step explanation:
Let x = the second square no.
Since 7 is the square root of one of the numbers, then that number is [tex]7^{2}[/tex] = 49
49 + x = 65
x = 16
Find the GCF of 6 and 21
A. 126
B. 21
C. 3
D. None of the above
Answer:
C. 3
Step-by-step explanation:
[tex]6 = 2 \times 3 \\ \\ 21 = 3 \times 7 \\ \\ \because \: common \: factor = 3 \\ \\ \therefore \: gcf \: of \: 6 \: and \: 21 = 3[/tex]
Answer:
C. 3
Step-by-step explanation:
Prime Factorization of 6: 2 × 3
Prime Factorization of 21: 3 × 7
Common Factors of 6 and 21: 3
So the greatest common factor of 6 and 21 is 3, that is, GCF of 6 and 21 is 3.
Mrs. People purchased Sandwiches at 2 for $6.00 and Donuts for $2.00 a package. She spent $19 for a total of 7 items. How many sandwiches and donuts did she buy?
Answer:
2. 1. 3. 3 6 . b. Classify the system, and tell how many solutions it has. 6. ... She spent the entire amount on songs, ... number of music videos Mariana bought. 7. A chemist needs to mix a 2% acid solution and a ... sandwich spread. ... Use the given matrices for Items 13–20. A ... person sold and the amount of money collected.
Step-by-step explanation:
solve x^2-8x-9=0 using the x method
Answer: x=9,-1
Step-by-step explanation:
First, we are gonna start out with finding two numbers that multiply to equal -9 and add up to equal -8
Those numbers would be -9 & 1
-9+1=-8
-9x1=-9
Now we have
(x-9)(x+1)
x-9=0 x+1=0
+9 +9 -1 -1
x=9 x=-1
Answer:
x=1,--9
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero x=1,--9
6:00 pm - 9¾ hours.
Answer:
The answer should be 9:25 am
Just subtract and use your fingers so you don’t loose track how many you subtracted
Answer:
count backward (use ur hands if needed cuz it's easier)...
6 - 9 so 5, 4, 3, 2, 1, 12, 11, 10, 9...
now we divide...
3/4 = .75
now we multiply...
60 x .75 = 45 mins
Step-by-step explanation:
6:00 p.m - 9 3/4 hour = 9:45 a.m...
hope this helps...
have a nice day!
PLSSSSSSSSS HELPP ILL MARK BRAINLIEST
Answer:
47
Step-by-step explanation:
Plssssss heeeelp (NOOOOO LINKS!)
find h of the following cone
Answer:
√72inch
Step-by-step explanation:
using the Pythagorean theorem
h²=11²-7²
h²=72
h=√72
the 7 is from 14/2
I need to know who to do this problem.
Answer:...........
(D) 3
cause both get the number 22 sooo ya!
help! need this quick.
Answer:
6
Step-by-step explanation:
Add up the sum of all the numbers on the graph, then subtract thoe two sums to get the difference.
Which number is irrational? A 2.001678 B 1.02002000200002 C 0.245245245 D 0.2
Answer:
I think B.
Step-by-step explanation:
Your friend deposits $8,000 in an investment account that earns 2% annual interest. Find the balance after 10 years when the interest is compounded monthly.
Answer:
$9,769.60
Step-by-step explanation:
A = 8000[1 + (.02/12)]^12·10
After a baby was born, he began to gain weight at a rate of 1.5 pounds per month. The weight of the baby at birth was 10 pounds. Write an equation for
W
,
W, in terms of
t
,
t, representing weight, in pounds, of the newborn baby
t
t months after birth.
Answer:
t, representing weight, in pounds, of the newborn baby
Step-by-step explanation: I
am 80% sure sorry if wrong
Solve p + 15 = 4.
Select the correct answer.
A:
p = 19
B:
p = 11
C:
p = -11
D:
p = -19
Answer:
C
Step-by-step explanation:
Given
p + 15 = 4 ( isolate p by subtracting 15 from both sides )
p = - 11 → C
Answer:
p -11 + 15 = 4
cause a negative × positive equals to positive
AD is the perpendicular bisector of BC. BD = 5x - 10 and DC = 3x + 10. Determine the value of x.
Answer: x= 10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
x=10
find value of x in the triangle
Answer:
x=5
Step-by-step explanation:
PYTHAGREOM THEREOM
12^2+b^2=13^2
b^2=25 square
b=5