Suppose that we wish to estimate the mean
CPU service time of a job. A sample of 10 jobs
gives a mean of 10 sec and standard deviation
of 1.5 sec. Assume that the CPU service times
are normally distributed, find a 95% confidence
interval for the mean CPU service time.

Answers

Answer 1

Answer:

Step-by-step explanation:

to do lo so ko gogfr org reg  grgrwe wffffqwf qw32767


Related Questions

a cuanto le tienes que sumar a 67222 para que llegue a 72622?

Answers

le tienes que sumar 5,400 para que te de el resultado

Answer:

Le tienes que añadir 5400

Step-by-step explanation:

Two regular 6-sided dice are tossed. Compute the probability that the sum of the pips on the upward faces of the 2 dice is the following. (See the figure below for the sample space of this experiment. Enter your probability as a fraction.) 8

Answers

Answer: 5/36

Step-by-step explanation:

is travelling to another country.
He flies for 7 hours at an average speed of 990 km/h on one plane.
He then flies for 6 hours 15 minutes at an average speed of 920 km/h on a second plane.
What is the total distance, in km, he travelled by plane?

Answers

Answer:

First time=7hours

First speed=990km/hour

First distance=first time×first speedD=(

S×T)

D=990km/hr×7hrs

D=6930km.

Second time=6&14min.

Second speed=920km/hr

Second distance=second speed×second time (D=s×t)

D=920km/hr×6&14min.

D=1500

Total distance=6930+1500

=8430

Solve.
a - 6 > 1
I need help quick!​

Answers

Answer: 8

Step-by-step explanation:

8-6 = 2 which is greater

anything above 7 is correct

Answer:

a>7

Step-by-step explanation:

a-6>1

a>1 +6

a>7

thank u i hope it helps

Which of the following is the equation of the line that passes through the point (-6, 1) and has
1
a slope of -
2
A
y =
1
- x +4
2
0
B
1
y = -x + 7
2
o
1
y = -x-2
2
D
11
1
y = -
2
2
Save and

Answers

Answer:

The answer should be C....

Function 1 is defined by y =-7/3x-1

Answers

Answer:

Y-Intercept

Step-by-step explanation:

Your question is not that clear to answer. If you are asking what number -1 called its y-intercept

Y intercept
Yeah yeah yeah yeah

HELP ME PLEASE ❗❗❗❗
What is the value of Q3 of the data represented by the box plot?



Enter your answer in the box.

Answers

Answer:

30

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

:P

I need serious help with this equation.​

Answers

Answer:

First, it’s already telling you that you need to find d, which is the opposite of degree 59. This means you have to do the exact thing for degree 37. Since it’s already telling you to use sine, you need to look at the opposite side of 37 which is 98.4.

So ? is 98.4

Now, you need to find sin 59 / d.

First, plug in sin 98.4 sin (37) in your calculator (make sure it’s in degree setting)

The result is 59.2.

Now, 59.2 = sin 59 / d.

Switch sides like this: d = 59.2 sin (37)

And the answer is approximatley d = 35.6

? = 98.4

d = 35.6

Photography. In exercises 18 and 19, use the following information. Developing times of photographic prints are normally distributed with a mean of 15.4 seconds and a standard deviation of 0.48 seconds.​

Answers

Answer:

18.The answer is 47 . 5 %

19.The answer is 83 . 85 %

Step-by-step explanation:

18 . This is a good example of normal Distribution

Z = ( Given score - Mean ) / Standard deviation

Z = (16. 36 - 15 .4 ) / 0.48

Z= 0. 96 / 0.48

Z = 2

From the table, the value of z on the right side of the normal curve

= 0.34 + 0 . 135 = 0.475

The percentage is 0. 475 x 100 = 47 . 5 %

19. We are asked to get the percentage between 13. 96 and 15. 88

Z 1 = ( 13 .96 - 15. 4 ) / 0.48

Z 1 = - 1. 44 / 0.48

Z 1 = -3

Z 2 = ( 15 . 88 - 15 . 4 ) / 0. 48

= 0. 48 / 0.48

Z 2 = 1

From the table , the value of z from - 3 to 1 is 0. 34 + 0. 135 + 0. 0235 + 0.34

= 0 .8385

The percentage is 0 . 8385 x 100 = 83 . 85 %

Find AB If AC = 12 and BC = 35

Answers

Answer:

37

Step-by-step explanation:

a² =b²+ç²a²=12²+35²a=√1369a=37

Krysta opened a bank account. She received 8% interest every year she has money in the account.

A. Write two expressions to represent this situation after one year. Let mrepresent the amount of money she puts in the account.

Expression #1: Expression #2:

Explain how these two expressions are equivalent

How much money will she have in her account after one year if she originally put $50 in the account?

Answers

Answer:.

Step-by-step explanation:

Here's link to the answer:

tinyurl.com/wpazsebu

there are 16 sixth graders, 11 seventh graders, and 9 eighth graders in a gym class. the gym teacher randomly selects one student to collect balls how many ways can choosing not a seventh grader occur

Answers

Answer:

34 total students.

25 are not 7th graders

27/35

I WILL GIVE BRAINIEST AND 100 POINTS TO WHOEVER ANSWERS THIS ASAP
Find the value of x in the triangle.

Answers

the answer to your question is 104 degrees.

given the equation y = 2x - 8 what is the slope and the y-intercept​

Answers

Answer:

slope: 2

y intercept 0, -8

Slope is 2 and y-intercept is -8. This is because of the equation y=mx+b. M is slope and b is y intercept

1. Dicey Odds [2 Points]You roll two six-sided dice. Die 1 is fair. Die 2 is unfair such that the probability of rolling anodd number is23and the probability of rolling an even number is13, though the probabilityrolling of each odd number is the same, and the probability of rolling each even number isthe same. What is the probability of:a) rolling a number less than 4 on Die 1 and rolling a 5 on Die 2.b) the sum of both dice adding up to 4.

Answers

Answer:

a) P(rolling a number less than 4 on Die 1 and rolling a 5 on Die 2) = [tex]\frac{1}{9}[/tex]

b) P( the sum of both dice adding up to 4) = [tex]\frac{5}{54}[/tex]

Step-by-step explanation:

Given - You roll two six-sided dice. Die 1 is fair. Die 2 is unfair such that the probability of rolling an odd number is [tex]\frac{2}{3}[/tex] and the probability of rolling an even number is [tex]\frac{1}{3}[/tex] , though the probability rolling of each odd number is the same, and the probability of rolling each even number is the same.

To find - What is the probability of:

              a) rolling a number less than 4 on Die 1 and rolling a 5 on Die 2.

              b) the sum of both dice adding up to 4.

Proof -

The sample space , S = { (1,1), (1,2), (1,3), (1,4), (1,5), (1,6)

                                          (2,1), (2,2), (2,3), (2,4), (2,5), (2,6)

                                          (3,1), (3,2), (3,3), (3,4), (3,5), (3,6)

                                          (4,1), (4,2), (4,3), (4,4), (4,5), (4,6)

                                          (5,1), (5,2), (5,3), (5,4), (5,5), (5,6)

                                          (6,1), (6,2), (6,3), (6,4), (6,5), (6,6) }

Now,

Given that , Dice 1 is fair

⇒P₁(1) = P₁(2) = P₁(3) = P₁(4) = P₁(5) = P₁(6) = [tex]\frac{1}{6}[/tex]

Also, Given Dice 2 is unfair

⇒P₂(1) = P₂(3) = P₂(5) = [tex]\frac{2}{3}.\frac{1}{3} = \frac{2}{9}[/tex]

   P₂(2) = P₂(4) = P₂(6) = [tex]\frac{1}{3}.\frac{1}{3} = \frac{1}{9}[/tex]

Now,

a)

P(rolling a number less than 4 on Die 1 and rolling a 5 on Die 2) = P₁(1)P₂(5) + P₁(2)P₂(5) + P₁(3)P₂(5)

= P₂(5) [ P₁(1) + P₁(2) + P₁(3) ]

= [tex]\frac{2}{9}[/tex] [ [tex]\frac{1}{6}[/tex] + [tex]\frac{1}{6}[/tex] + [tex]\frac{1}{6}[/tex] ] = [tex]\frac{2}{9}[ \frac{3}{6}]\\[/tex] = [tex]\frac{1}{9}[/tex]

⇒P(rolling a number less than 4 on Die 1 and rolling a 5 on Die 2) = [tex]\frac{1}{9}[/tex]

b)

P( the sum of both dice adding up to 4) = P₁(1)P₂(3) + P₁(2)P₂(2) + P₁(3)P₂(1)

                                                                  = [tex]\frac{1}{6}[/tex] × [tex]\frac{2}{9}[/tex]  + [tex]\frac{1}{6}[/tex] × [tex]\frac{1}{9}[/tex] + [tex]\frac{1}{6}[/tex] ×[tex]\frac{2}{9}[/tex]   = [tex]\frac{5}{54}[/tex]

⇒P( the sum of both dice adding up to 4) = [tex]\frac{5}{54}[/tex]

4 divided 1/5 hep me plz

Answers

Answer:

4/1/5=20 because when you divide by a fraction u keep change the divison into multiplaicton and flip the 1/5 to 5/1 so 4x5

Step-by-step explanation:

Broccoli cost 1.50 at a store. How much does 32 ounces of broccoli cost?

Answers

Answer:

48.00

Step-by-step explanation:

Answer:

48.0 hope it helps you out

Please help now ASAP!!!!

Answers

Answer:

Step-by-step explanation:

I don't think u can tell from that because u need the length of each movie

the sum of the first n terms of a sequence is given by Sn=3^m^+^1-6 Determine the sum of the first 12 terms​

Answers

Hi I just need to answer this so I can get point so yea but it’s probably 3-56 38

ons: Practice
Question 2 of 5
The expression below represents the amount owed on a loan over t years.
1,550(1.042)
Interpret the meaning of the expression.
O The initial loan amount is $1,550, and the interest growth rate is 1.042% per year.
The initial loan amount is $1,042, and the interest growth rate is 55% per year.
The initial loan amount is $1,042, and the interest growth rate is 1.55% per year.
The initial loan amount is $1,550, and the interest growth rate is 4.2% per year.

Answers

Answer:

the initial loan amount is $1,550, and the interest growth rate is 4.2% per year.

Step-by-step explanation: I just answered it.

Answer:

the answer is c

Step-by-step explanation:

for plato

Calculate the SQRT485 Express answer to nearest hundredth.

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 22.02

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

what number is 30% greater than 20?

Answers

Answer:

26 is 30% greater than 20!hope this helped have a good day/night

Help please!!!When the clock struck midnight, Cinderella ran 3 miles back to her house from the ball. How many yards did she run?

Answers

Answer:

she ran 5,280 yards

Step-by-step explanation:

Answer:

5280

Step-by-step explanation:

Well, there are 1760 yards in a mile, aka 5280 feet. (5280ft/3=1760yds). 1760x3=5280.  I hope this was an okay explanation, this is my first day on Brainly with an account, hehe.

Find the linear equation that is the straight line through (1, 2) and (8, 30).​

Answers

Slope
= 30-2/8-1

= 28/7

= 4


Equation:
y - 2/x - 1 = 4

y - 2 = 4(x-1)

y - 2 = 4x - 4

y = 4x - 4 + 2

y = 4x - 2

Answer:

y = 4x - 2

Step-by-step explanation:

→ First find the gradient

[tex]\frac{x2-x1}{y2-y1} =\frac{30-2}{8-1} = 4[/tex]

→ Put into y = mx + c format

y = 4x + c

→ Substitute ( 1 , 2 ) into y = 4x + c

2 = 4 + c so c = -2

→ Rewrite into equation format

y = 4x - 2

Find the area of the polygon.
16 ft
14 ft
2 ft
2 ft

Answers

Answer:

448ft

Step-by-step explanation:

16 x 14 x 2 x 2

  \   /         \   /

  224   x    4

          \    /

          448

7. A garden contains 284 flowers, each of which is either red or yellow. There
are 5 beds of yellow flowers and 4 beds of red flowers. There are 40 yellow
flowers in each yellow flower bed. If r represents the number of red flowers in
each red flower bed, what equation could you use to represent the number of
red and yellow flowers?

Answers

Answer:

284=5(40)+4r

Step-by-step explanation:

33√8

9√20

444÷333

5552×333


3÷99


44√5

6622÷33








Answers

Step-by-step explanation:

93.340.21.318488163398.3200.6

if u want it by step by step thn tell me i will do that..

2) Dividing polynomial by using long division,
(x ^2+ 4x - 15) \(x-3)

Answers

x+7+6/x-3 (sorry if it’s not correct but that’s what I got)

Please help I need P factored completely
P(x)=x^4+50x^2+625

Answers

Answer: here u go and can u give me brainliest

Step-by-step explanation:

PLS HELP! (THE QUESTION IS A PICTURE CLICK ON THE QUESTION FIRST)

Answers

Answer:

Step-by-step explanation:

B.28.1

Answer:

It's BBBBBBBBBBBBBBBBB

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