Answer:
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Step-by-step explanation:
hshshshssjsjznznznznsjshjzzhzh
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting. It is believed that the machine is underfilling the bags. A 9 bag sample had a mean of 431 grams with a variance of 144. A level of significance of 0.01 will be used. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the bags are underfilled
Answer:
No, there is not sufficient evidence to support the claim that the bags are underfilled
Step-by-step explanation:
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting.
This means that the null hypothesis is:
[tex]H_{0}: \mu = 434[/tex]
It is believed that the machine is underfilling the bags.
This means that the alternate hypothesis is:
[tex]H_{a}: \mu < 434[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
434 is tested at the null hypothesis:
This means that [tex]\mu = 434[/tex]
A 9 bag sample had a mean of 431 grams with a variance of 144.
This means that [tex]X = 431, n = 9, \sigma = \sqrt{144} = 12[/tex]
Value of the test-statistic:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{431 - 434}{\frac{12}{\sqrt{9}}}[/tex]
[tex]z = -0.75[/tex]
P-value of the test:
The pvalue of the test is the pvalue of z = -0.75, which is 0.2266
0.2266 > 0.01, which means that there is not sufficient evidence to support the claim that the bags are underfilled.
Type the correct answer in each box.
50°
60°
709
х
50°
The value of xis
°, and the value of y is
Answer:
x = 60°
y = 50°
Step-by-step explanation:
✔️x + 50° + 70° = 180° (sum of a triangle)
x + 120° = 180°
Subtract 120° from each side
x = 180° - 120°
x = 60°
✔️50° + 60° = x + y (exterior angle theorem of a triangle)
110° = x + y
Plug in the value of x
110° = 60° + y
Subtract 60° from each side
110° - 60° = y
50° = y
y = 50°
What is the value of x in the equation −x = 6 − 3x + 8? (1 point) Question 10 options: 1) −14 2) −7 3) 14 4) 7
The answer is 4) 7
x=7
Answer:
7
Step-by-step explanation:
x = 7
QUICK PLEASE I NEED HELP ON THIS
Answer:
Some
Step-by-step explanation:
the mean absolute deviation would intersect and would there for be some but at far enough apart to not be a lot
Nicholas is currently in eighth grade and intends to attend a state college when he finishes high school. Nicholas’s parents currently have some money invested in mutual funds, but would like to invest this money in a more secure investment now to pay for college in 4 years. If they will need $25,000, how much do Nicholas’s parents have to invest now in a 48month CD that has a rate of 4.59% compounded monthly?
Answer: he has 10 monthly
Step-by-step explanation:
see from the question
Suppose that sand is falling to form a circular cone whose radius and height are the same, as in the picture. Suppose that twenty cubic meters of sand falls every minute, so that the volume of the cone of sand is increasing at the rate of 20 m3/min. When the cone of sand is ten meters high, what is the at which the height of the cone is increasing (in meters per minute)
What’s the volume of the rectangular prism of 2cm, 7/3 cm and 2cm?
Answer:
9 1/3 cm³
Step-by-step explanation:
First multiply two numbers.
2x2=4
Then multiply the product by the third number.
4x7/3
4 x 7
1 x 3
= 28/3 or 9 1/3
--
hope it helps
find the mode, 3,1,9,3,1,2,3
{math}
Help
Write an equation for each line
Answer:
Yellow- y = -3 + 5
Red- y = 2x + 5
Purple- y = 2x - 6
Blue- x = 5
Green- y = 2
I hope this helps you ^^ Good luck :]
What is MEAN ABSOLUTE DEVIATION and how do you find it?
Step-by-step explanation:
Step 1: Calculate the mean. Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations. Step 3: Add those deviations together. Step 4: Divide the sum by the number of data points.
Please please help please
Answer:
Your answer will be D. 15,840:) you're welcome, have a great day:)!
Simplify the expression 16 3\4
Answer:
12
Step-by-step explanation:
hope it helps
see attached
Which numbers between 10 and 20 do not appear in the table at all?
And also why don’t they appear?
Answer:
11, 13, 17, 19,
Step-by-step explanation:
dunno
The area of the trapezium is four times the area of the parallelogram. Work out the value of x
Answer:
2.5cm
Step-by-step explanation:
area of trapezium = 4 * area of parallelogram
1/2(a+b)*h=4* bh
1/2(5+11)*4= 4* 3.2x
8*4=4*3.2x
8/3.2=x
2.5cm=x
hi, I need to send you a screenshot
A new car is purchased for 22300 dollars. The value of the car depreciates at 7.5% per
year. To the nearest year, how long will it be until the value of the car is 7700 dollars?
Answer:I think 3 years
Step-by-step explanation:
sorry if im wrong
4 in.
3 in.
2 in.
2 in.
6 in.
Find the surface area.
square inches
(Hint: The rectangular faces
are different sizes.)
Answer:
The correct answer is 5in
Step-by-step explanation:
6+4=10÷2=5in
Show your work
2) Is(-3,-7) a solution to
4x – 8y < 24
Show your work
Answer: false, 44 is not less than 24
Step-by-step explanation:
Substitute-3 for x and -7 for y.
4(-3)-8(-7)<24
-12+56<24
44<24
2) If you feel you have a "fixed mindset" right now, what would it
take for you to change it to a 'growth mindset"?
Please help
Answer:
Watch tv or play a game that's would help
Step-by-step explanation:
Answer:
Multiple steps and time.
Step-by-step explanation:
Looking at things in a positive way, even if it is a small daily thing will gradually help create a growth mindset.
A circle's radius is 14 centimeters.
What is the circle's circumference (use 3.14 for pi and round to
nearest tenth)?
Answer:
seeee this is y i hate math too many numbers XD
24 ÷ v x k when v=2 and k=4
Answer:
48
Step-by-step explanation:
24 ÷ v x k
24 ÷ 2 x 4
(Since it's multiplication and division, you just go from left to right in order)
12 x 4
48
kim works from 6 to 11 on friday and saturday evenings at ty’s diner. she gets $4.35 an hour plus tips. her tips were $37.35 on friday and $42.10 on saturday. how much did she earn for the 2 night’s work? _________ how much did she average per hour? ________
Answer:
Friday, total earning:
(11 - 6)*$4.35 + $37.35 = $59.10Saturday, total earning:
(11 - 6)*$4.35 + $42.10 = $63.85Total for the two nights is:
$59.10 + $63.85 = $122.95Average per hour is:
$122.95/(5 + 5) = $122.95 / 10 = $12.30 (rounded): Find the equation of the tangent line to the curve f(x)= e^xat x_0= 2, and show this line on the graph.
The tangent line to f(x) = e ˣ at the point x = 2 has slope equal to f ' (2):
f(x) = e ˣ → f '(x) = e ˣ → f ' (2) = e ²
At x = 2, the function takes on a value of f (2) = e ². Use the point-slope formula to get the equation of the tangent line:
y - e ² = e ² (x - 2)
Solve for y :
y = e ² x - e ²
Rozlyn invested $2000 in an account that pays 4.25% annual simple interest. She will not make any additional deposits or withdrawals. How much interest will Rozlyn earn on her investment in 10 years?
Answer:
$850
Step-by-step explanation:
Interest = Principal x Rate x Time
I = 2000(.0425)(10)
I = 850
Plz help!!!!!!!!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
hello : here is an solution
need a answer for this question
Answer:
The values of a, b, and c determine the shape and position of the parabola. The domain of a function is the set of all real values of x that will give real values for y. The range of a function is the set of all real values of y that you can get by plugging real numbers into x. The quadratic parent function is y = x2.
Step-by-step explanation:
just read carefully and look it up on symbolab
Give brain!!!!The number of students that participated in sports last year was 100. This year there are 140 students participating in sports. What is the percent of increase in the number of students participating in sports from last year to this year? __________%
PLS HELPPPPPPP MEEEEE
Answer:
4.7 · 10^7
Step-by-step explanation:
WWW ie Www Anna baked 3 batches of cookies with c cookies in each batch. She then ate 8 cookies! How many cookies does Anna have left? Write your answer as an expression. TIME
Anna had 2 batches left also equal to 16 cookies
how do you find how many pounds he used, and how many pounds did he use?
Answer:
I'm not too sure what you are referring too and I can't clearly see the image but I'll give you some tips!
One way to find out how many pounds he used is to add all the pounds you know he used (what is written down) or to multiply, divide, whatever is best for the situation
so yeah hope this helped!