A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is measured in millimeters. The results are presented next.

Process A Process B
Sample mean 2.0 3.0
Standard deviation 1.0 0.5
Sample size 12 14

The researcher is interested in determining whether there is evidence that the two processes yield different average errors. The population standard deviations are unknown but are assumed equal. If What is the decision if we use 1% level of significance?

a. Fail to reject the null hypothesis and conclude the means are different.
b. Reject the null hypothesis and conclude the means are different.
c. Fail to reject the null hypothesis and conclude the means are the same.
d. Reject the null hypothesis and conclude the means are the same.

Answers

Answer 1

Answer:

b). Reject the null hypothesis and conclude the means are different.

Step-by-step explanation:

A hypothesis is characterized as null when the data/statistics display that there is no distinction between the particular features of the groups. As per the details provided, the decision would be to 'reject/deny the null hypothesis and deduce that the means of the processes are different.' This shows that there is no association among the variables due to the distinction in the means of the two processes and other data provided. Thus, option b is the correct answer.


Related Questions

Please help with this question so I'm going to fail math

Answers

Answer:

108: 4x3^3, 3^2x12, 6^2x3

96: 2^5x3, 2^3x122^4x6

Step-by-step explanation:

How can you evenly split 8 apples among 15 people without cutting any apple into more than 5 parts?

Answers

Answer:

1/3 and 1/5

Step-by-step expl1

u should kno

Translations, rotations, and reflections are rigid transformations. What can you conclude about the measures of sides and angles on any triangle after undergoing a series of rigid transformations? Explain.

Answers

Answer:

After a translation, the measures of the sides and angles on any triangle would be the same since translation only involves changing the coordinates of the vertices of the triangle.

After a rotation, the measures of the sides and angles of a triangle would also be the same. Similar to translation, the proportion of the triangle is unchanged after a rotation.

After a reflection, the triangle's sides and angles would still be the same since reflection is a rigid transformation and the proportion of the sides and angles are not changed.

Step-by-step explanation:

Rigid transformations, i.e. translations, rotations, and reflections, preserve the side lengths and angles of any figure. Therefore, after undergoing a series of rigid transformations, the side lengths and angle measures of any triangle will be the same as the original triangle, generally speaking, in another position.

Answer:

They are all congruent or equal. The angles and side lengths are preserved through the rigid transformations.

Step-by-step explanation:

That’s what i put

What is the function equation for the input/output table?

x y
0 0
1.3 3.9
5 15
8 24



y = (3.9) x

y = x + 3

y = 3 x

y = x + 3.9

Answers

Answer:

3

Step-by-step explanation

Your problem statement tells you  

f(x) passes through point (3, negative 1)

g(x) passes through point (3, negative 1)

This tells you the input value that produces the same output value for the two functions is 3, and that output value is -1.

Can someone help me?

Answers

Answer:

7. D) 61in

8. A) 57in

9. A) 47in

Step-by-step explanation:

The perimeter is the distance around the area of a 2-dimensional figure. it can be found by adding up all of the sides of the figure. One can use this to solve for the value of the parameter (x). Then substitute the value back in to find the value of the side.

7.

AB + BC + AC = 145

Substitute,

2x + 2x + 5 + x = 145

Simplify,

5x + 5 = 145

Inverse operations,

5x + 5 = 145

-5

5x = 140

/5

x = 28

Substitute,

AC = 2x + 5= 2(28) + 5 = 61

8.

AB + BC + AC = 135

Substitute,

2x + 2x + 5 + x = 135

Simplify,

5x + 5 = 135

Inverse operations,

5x + 5 = 135

-5

5x = 130

/5

x = 26

Substitute,

AC = 2x + 5 = 2(26) + 5 = 57

9.

AB + BC + AC = 122

Substitute,

x + 22 + 2x + x = 122

Simplify,

4x + 22 = 122

Inverse operations,

4x + 22 = 122

-22

4x = 100

/4

x = 25

Substitute,

AB = x + 22 = 25 + 22 = 47

Which numbers are irrational?
144
18
149
45

Answers

B and C are irrational

solve the quadratic equation by completing the square: 6x²-11x-10=0 ​

Answers

Step-by-step explanation:

6x² - 11x - 10 =0{use splitting middle term method} -60x²

| |

-4. +15

(6x² - 4x) (15x - 10)2x( 3x - 2 ) +5( 3x - 2)(2x + 5) (3x - 2)2x = -5 or 3x = 2x = -5 or x = 2

there fore x = 2

what is the twelfth term in the sequence 13,26,39, ...?

Answers

Answer:

166

Step-by-step explanation:

Brainliest and a thanks??

Term 1: 13

Term 2: 26

Term 3: 39

Term 4: 52

Term 5: 65

Term 6: 78

term 7 : 91

Term 8: 104

Term 9: 117

Term 10: 130

Term 11: 143

Term 12: 156

OR 13*12=156

Add 13 every time until you add it 12 times you will get 156. Or you can mulitply 13*12 you will get 156. Multiply is much easier though!!

Hope this helps!

Answer=156

Have a great day!

- Hailey!

(nothing is copied or pasted!!!)

I really need help , someone please help :’( ... ill also make you brainlist.

Answers

Answer:

Step-by-step explanation:A)

13 miles in feet = 68640 feet

we now need to get the number of cars, we use division to get groups

68640 / 15 = 4576.

we now see there are 4576 cars in the traffic jam.

B)

Less, they are longer cars so the divosor would no longer be 15, it would be a higher number. 4576 cars would  not be able to fit in a 13 mile stretch if those cars were any longer.

[15 points !] What is the factored form of x²y3 – 2y3 – 2x2 + 4?

Answers

Answer:

D

Step-by-step explanation:

Have a Nice Day

Answer:

(x^2 - 2)(y^3 - 2)

Step-by-step explanation:

I got it right on Iready

A nickel and a quarter are tossed once. What is the probability that both lands on tails? show work

Answers

Answer:

1/4

Step-by-step explanation:

1/2 x 1/2 = 1/4

Anthony cut a piece of metal that weighed 2,700 grams. Dionne cut a piece of metal that weighed 3,200 grams. How much heavier was Dionne’s piece, in kilograms?
A 0.5 C 50
B 5 D 500

Answers

Answer:

D: 500

Step-by-step explanation:

This is the answer because 3,200 - 2,700 = 500. Can I have a brainliest?

                                    XxRoadToAcexX

please someone answer this question fast!

Answers

Answer:

100.05 in^2

Step-by-step explanation:

Area of parallelogram: base times height

=11.5 x 8.7=100.05 in^2

100.05in ^2

A= l x w
A= 11.5x8.7
A= 100.05

If you answer this question correctly i'll give you brainliest.

Answers

Answer:

5.7.11.13

Step-by-step explanation:

My guess

Answer:

first 11 second is 12 and 13 third is 14

Step-by-step explanation:

Samuel bought an 8-ounce bag of lettuce and two 1-pound bags of carrots. Which is the total weight of the lettuce and carrots in ounces?
A. 10 ounces
B. 12 ounces
C. 40 ounces
D. 72 ounces

Answers

The total weight of the lettuce and carrots in ounces is 40 ounces if Samuel bought an 8-ounce bag of lettuce and two 1-pound bags of carrots option (D) is correct.

What is unit conversion?

It is defined as the conversion from one quantity unit to another quantity unit followed by the process of division, and multiplication by a conversion factor.

We have:

Samuel bought an 8-ounce bag of lettuce and two 1-pound bags of carrots.

As we know:

1 pounds = 16 ounces

Amount of lettuce = 8 ounce


Amount of carrots = 2 pounds = 2×16 = 32 ounces

Total weight of the lettuce and carrots in ounces =  8 + 32 = 40 ounces

Thus. the total weight of the lettuce and carrots in ounces is 40 ounces if Samuel bought an 8-ounce bag of lettuce and two 1-pound bags of carrots option (D) is correct.

Learn more about the unit conversion here:

brainly.com/question/14350438

#SPJ1

Suppose a person offers to play a game with you. In this game, when you draw a card from a standard 52-card deck, if the card is a face card you win "$2, and if the card is anything else you lose $1". If you agree to play the game, what is your expected gain or loss (in dollars) per game? (Recall that there are 12 face cards in a standard 52-card deck. Round your answer to two decimal places.) $

Answers

Answer:

Your expected loss per game is of $0.31.

Step-by-step explanation:

In a standard 52-card deck, we have that:

There are 12 face cards.

What is your expected gain or loss (in dollars) per game?

12/52 probability of winning $2.

1 - 12/52 = 52/52 - 12/52 = 40/52 probability of losing $1. So

[tex]E = \frac{12}{52}*2 - \frac{40}{52}*1 = \frac{24 - 40}{52} = -\frac{16}{52} = -0.31[/tex]

Negative, so a loss is expected.

Your expected loss per game is of $0.31.

Can someone please help me I will mark u brilliant

Answers

Answer: 6.50 + 5.75n

Step-by-step explanation:

Answer:

6.50 + 5.75n

Step-by-step explanation:

because since it said let n equal the number of hours AFTER the FIRST hour.

(just have to read the question carefully)

what is a decimal in mathematics

Answers

Answer:

a decimal number can be defined as a number whose whole number part and the fractional part is separated by a decimal point. The dot in a decimal number is called a decimal point. The digits following the decimal point show a value smaller than one.

Step-by-step explanation:

Helppppp meeee llsss

Answers

Answer:

I think the answer is 6.5

What is −y+9z−16y−25z+4 written in simplest form?

Answers

Answer:

[tex] - 17y−16z+4[/tex]

Step-by-step explanation:

[tex] - y+9z−16y−25z+4[/tex]

[tex] - 17y+9z−25z+4[/tex]

[tex] - 17y−16z+4[/tex]

Hope it is helpful....

Can someone answer this please l

Answers

Answer:

Step-by-step explanation:

(5a + 18) + (48 - a) + (8a - 30) = 180 (Angles on a straight line)

5a + 18 + 48 - a + 8a - 30 = 180

12a + 36 = 180

12a = 180 - 36

a = 144/12

a = 12

therefore, the first angle is, 78 degree, second angle is 36 degree and third angle is 66 degree.

Therefore, the size of the smallest angle is 36 degree

180=5a+18+48-a+8a-30
144=12a
a=12
The middle angle= 36 degree
Give me brilliant

Does a compromised account on Instamean your banned for a few days????? Yes or no?
Answer ASAP

Answers

Answer:

Not necessarily

Step-by-step explanation:

Not necessarily. Compromised accounts tend to happen for one of two reasons. The first is that the system detects and overdose of activity on your account meaning your are spamming likes, shares, etc on the account. The second is due to unauthorized access or suspicious activity. Both of these can either cause a temporary ban on your account that lasts for a 24 hours or a deactivation of the account. To reactivate your account you will need to login, and reactivate it in the settings, which may ask you to reset your login information.

jaslyyyyyyyyyy yus beans

Answers

Answer:

7/9

Step-by-step explanation:

21 / 27 = 3 * 7 / 3 * 9

= 7/9

WILL





GIVE


,,,,
BRAINLIST

Answers

Answer:

First option is correct

Find the distance between the two points in simplest radical form.
(-1,2) and (-7, -6)

Answers

Answer:

10

Step-by-step explanation:

how much would be in your savings account in 11 years after depositing $150 today if the bank pays 7% a year

Answers

The answer is 315.73

What is the slope of y<-3/4x-1

Answers

Answer:

-3/4

Step-by-step explanation:

In slope-intercept form, the slope is the coefficient of x.

Use the formula R = log I, where R is the measurement of the Ritchter scale and i is the intensity, to find the Ritchter scale measurement of an earthquake with intensity 24,000,000. NO LINKS!!!

Answers

9514 1404 393

Answer:

  7.4

Step-by-step explanation:

Put the given value into the formula and do the arithmetic.

  R = log(2.4×10^7)

  R ≈ 7.3802 ≈ 7.4

The earthquake is about 7.4 on the Richter scale.

Which figure shows a reflection of ​pre-image QRS​ over the line t?

I need help PLSSSSS 50 points!!!

Answers

Answer:

A, because its reflecting off of the y axis

Step-by-step explanation:

I have proof links, and I took the test

I need the answer fast

Answers

Answer:

87

Step-by-step explanation:

this is correct

Other Questions
What is democracy? Write any five examples of democracy culture. Hey yall this question is for the edge students, my adhd is getting the best of me so I have to ask. when you do a cumulative exam and if you get a bad grade do you have to retake it?? 50points!!!!!! Read the excerpt by Gandhl below:"... the true thing for any human being on earth is not justice based on violence but justice based on sacrificeof self, justice based on Yagna and Kurani,"Determine how Gandhi uses repetition and parallel structure to strengthen his argument.Why does Gandhi repeat the phrase "justice based on"?Why does Gandhi repeat the pattern with the phrase "justice based on (violence] but justice based on [sacrifice of self],justice based on [Yangna and Kurani]?You may use Excerpt 1 as a guide. You have an allowance to spend on lunch thisweek. You will spend the same amount eachday, and you get to keep whatever is left atthe end of the week. After two days, youhave $12.10 remaining. After five days, youhave $2.50 remaining. what is the initial value, rate of change, and table of values la mesa, una tablawhat does that mean in spanish I have the biology STAAR test tomorrow what facts and tips would help me pass it please help Solve the given polynomial by factoring. Check all answers that are correct. f(y) = 3y^3 + y^2 + 9y + 3A) y = 1/3B) y = i3C) y = 3D) y = -3E) y = -1/3 F) y = i3 How did the relationship between the two powers improve under Dtente? 6th grade math plsssssss whoever does this I will give any vbuck card, or Microsoft. PLSSS HELP! what is a web client Arnettas monthly gross pay is $4,200 federal withholding is 16.05% What is the solution?-4(3) - 3 = ? This biome has cactus plants, less rainfall, and more sand. A) savannah B) desert c) tundra On a distance-time graph, the faster the object, the _______ the slope of the line. *A.curvierB.flatterC.lowerD.steeperThe following words are used to describe the direction of a moving object EXCEPT... *A. EastB. NorthC.SouthD. Today To find the quotient of 726.02 and 1,000, move the decimal point in 762.02___Places to the ____Choices for blank 1.A. 2B. 3C. 4D. 5Choices for blank 2.A. LeftB. Right NO LINKS!! Name the integer that is 2 more than the opposite of -4. PLEASE HELP!!!!1!1!1! suppose one particular pyramid in egypt has a square base of side length 280 meters and a perpendicular height of 144 meters what is the surgace area of the pyramid? best age to get navel piercing and why ? xx what do you like to do outside of work? Please help this is very important i will give you brain thing if its correct no links please