A student researcher compares the ages of cars owned by students and cars owned by faculty at a local state college. A sample of 59 cars owned by students had an average age of 7.72 years. A sample of 49 cars owned by faculty had an average age of 6.1 years. Assume that the population standard deviation for cars owned by students is 2.73 years, while the population standard deviation for cars owned by faculty is 3.8 years. Determine the 95% confidence interval for the difference between the true mean ages for cars owned by students and faculty. Step 2 of 3 : Calculate the margin of error of a confidence interval for the difference between the two population means. Round your answer to six decimal places.

Answers

Answer 1
The answer is eurhdbwndiwkde

Related Questions

Find the erea of the trapezoid.

Answers

9514 1404 393

Answer:

  32 yd²

Step-by-step explanation:

Use the area formula with the given dimensions.

  A = 1/2(b1 +b2)h . . . . . base lengths b1, b2; height h

  A = 1/2(2 +6)8 = 1/2(8)(8) = 32 . . . . square yards

The area of the trapezoid is 32 square yards.

Find the value of x in the triangle shown below.
a. x=27
b. x=5
c. x= 4
d. x=18

Answers

Answer:

[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]

by using Pythagoras law:

h²=p²+b²

6²=x²+3²

x²=36-9

x=√27 units

f(x)=3x^2+2x-3 and g(x)=2x+4. Identify the rule for f+g

Answers

Answer:

3x^2 +4x+1

Step-by-step explanation:

Hope this helps :)

Simplify fractions 7/21

Answers

Answer:

1/3

Step-by-step explanation:

7/21 = 1/3

This is because 21 & 7 are both multiples of 7. 7 / 7 = 1. 21 / 7 = 3.

That makes it 1/3.

Hope that helps! :)

Answer:1/3

Step-by-step explanation:to simplify, divide both numerator and denominator by 7

7/7=1 and 21/7=3

86.4 is what percent of 144?

Answers

Answer:

60%

Step-by-step explanation:

86.4 divided by 144 is 0.60 which is 60%

Answer:

60%

Step-by-step explanation:

divide 86.4 by 144 which will give you 0.60

PLEASE HELP. NO LINKS OR U WILL BE REPORTED MAKE SURE U ARE RIGHT I WILL GIVE BRAINLY THING ​

Answers

Answer:

The answer is B to your question

Recall that the angles of every triangle sum to 180°. The three angles of a triangle ABC are even consecutive integers. Find the measures of all three angles of the triangle, listing them from the smallest to the largest angle. A is the smallest angle: degrees B is the next angle: degrees C is the largest angle: degrees​

Answers

Answer:

A = 58

B = 60

C = 62

Step-by-step explanation:

A + B + C = 180

A = 58

B = 60

C = 62

58 + 60 + 62 = 180

What are three methods used for solving a system of equations?

Answers

Answer:

- graphing

- substitution method

- elimination method

Step-by-step explanation:

What is the solution to |2x-8|<2?

Answers

Answer:

A) 3<x<5

Step-by-step explanation:

Given: |2x-8|<2

Make two inequalities:

First inequality:

2x-8<2

2x<10

x<5

Second inequality:

2x-8>-2

2x>6

x>3

Therefore, your solution is 3<x<5 since the two inequalities pass each other, making an "and" inequality.

a) Hace diez años las edades de Juan y Diego sumaban 36 años. Ahora Juan tiene el triple de la edad de Diego. ¿Cuál es la edad de cada uno ahora?

Answers

Answer:

Juan:  42

Diego: 14

Step-by-step explanation:

(d - 10) + (j - 10) = 36

d + j -20 = 36

d + j = 56

j = 3d

d + 3d = 4d = 56

d = 56/4 = 14

j = 3d = 3(14) = 42

Determine if the equations are parallel, perpendicular or neither y = -3x + 6 and y = 1/3 x -8

Answers

Answer:

Perpendicular

Step-by-step explanation:Because the slopes are negative reciprocals of each other.

They are PERPENDICULAR because the second equation is the opposite reciprocal of the first.

v=U + at
u= 2
a = -5
t = 1
Work out the value of v.

Answers

Step-by-step explanation:

[tex]V = U + at \\ V = 2 + ( - 5 \times 1) \\ V = - 3[/tex]

Pls help if u cannnnnnnnnnnnnnnnn

Answers

Answer:

4.189 cubic inches

Answer:

4.19 in³

Step-by-step explanation:

The formula of volume of sphere

[tex] = \frac{4}{3} \pi {r}^{3} [/tex]

The volume of the sphere

[tex] = \frac{4}{3} \times 3.14 \times {1}^{3} [/tex]

[tex] = \frac{12.56}{3} [/tex]

[tex] = 4.186666667...[/tex]

= 4.19 in³ (rounded to the nearest hundredth)

Pls answer fast and will mark brainliest.

Answers

Answer: b 5 calories per minute

Step-by-step explanation: you can see that the graph starts at 0 and at the one at the bottom it goes to 5 and then 10 for 2 minutes and so on

Sorry guys new one thank you math people your the best you guys save my life :)

Answers

Answer:

2.0 is the correct answer

Step-by-step explanation:

hope it helps you

A square has an Area of 49 square feet. What is the measure of a side length? * ​

Answers

Answer: 7 feet

hope this helps, have an amazing day <3

I will give you Brainliest and 500 points if you do this

Answers

1 = A 2= H 4= J 5= D
i don't know the answer to 3 though sorry
hope this helps if u have any questions let me know and also if u could mark this as brainliest i would really appreciate it!

$265 worth of tickets were sold
Adult tickets cost $6
Child tickets cost $2.50
57 tickets were sold

Let x represent the number of adult tickets sold. Let y represent the number of child tickets sold.

Which equations represent the scenario? Select two equations.

Answers

Answer:

A and F, x=35

Step-by-step explanation:

The correct answers are :

A ) x + y = 57

F) 6x + 2.5ʏ = 265

Please help me with this problem. Do not send me a link to some random website. I do not trust the link given that requires me to download it nor does Brainly allow links to websites other than itself to be on its community or whatever.

Answers

Answer: [tex]\left[\begin{array}{ccc}|x|0|1|2|3|4|5|6|\\|P(x)|0|4|8|12|16|20|24|\end{array}\right][/tex]

b. P(x)= 4x

c. The graph would go in a straight line touching each point given.

Step-by-step explanation: To find the perimeter of a square you can use the equation 4(x). If you multiply each x value by 4 you'll get the P(x) values.

(Solve the inequality) r + 0.2 < -0.7

Answers

Answer:

i beleive its 0.5

Step-by-step explanation:

sorry if its wrong

Answer:r<-0.9

Step-by-step explanation:

Practice with linear pairs and vertical angles,
Wuch angles are lineat pots? Check all that any
ZSRT and ZTEV
VW and ZWS
ZV90 and ZUS
R
ZUW and Z WS
w

Answers

Answer:

<SRT + <TRV

<VRW + m<WRS

<VRW + m<URS

Step-by-step explanation:

When two straight lines intersect, the adjacent angles formed on a straight line are referred to as linear pairs and they equal 180°.

The linear pairs from the diagram given are:

<SRT + <TRV

<VRW + m<WRS

<VRW + m<URS

All pairs sum up to 180° each.

An orchard has 986 orange trees. The number of rows exceeds the number of trees per row by 5 . How many trees are there in each row?

Answers

Answer:

918.60

Step-by-step explanation:

dont mind my handwriting

Helppppp plzzzzzzz!!!!!! 15+PTS and brainliest!!!!!!!! ASAP!!!!!

Answers

Answer: The 3rd one! Letter C.

Step-by-step explanation:

I used a calculator!

Answer:

384 mi2

Step-by-step explanation:

I calculated it!!!!!

8 x 8 = 64

64 x 6 = 384

Hope this helps!!!!! Have a great day!!!!!!

Deanna's times, seconds, for running the 100 meter dash this week were: 10.80 0,10.99,11.02,10.80,11. and 10.96 . 10.78 1.10, 10.88, 10.72, 10.15 Which measure of center would most accurately describe Deanna's typical time, and what is the value of that measure of center? Move a word and a value to complete the sentence . The best center of measure for this data is the which is equal toseconds mean median 10.88 10.9010,8 11.1​

Answers

Answer:

If you help me ill help you

Step-by-step explanation:

Carmen's father is 28 years older than her, 3 years ago we was 5 times her age, what are their ages?

The best centre of measure for this data is the mean which is equal to 10.90 seconds.

Mean, median and mode are use to measure for central tendency. Therefore, let's arrange the values in ascending order.

10.72, 10.75, 10.78, 10.80, 10.80, 10.88, 10.96, 10.99, 11.02, 11.10, 11.10,

According to the data, the values are very close to catch. Therefore, the mean will be used. Therefore,

mean = sum of data / number of data

mean = 10.72 + 10.75 + 10.78 + 10.80 + 10.80 + 10.88 + 10.96 + 10.99, 11.02 + 11.10 + 11.10  / 11

mean = 119.9 / 11

mean = 10.90

learn more on mean here: https://brainly.com/question/12019147

Who else likes ITZY? Whats the name of their new comeback :))))

Answers

The album is called "GUESS WHO"

Answer:

Their comeback is named "GUESS WHO"

Please help me on this question

Answers

Answer:

[tex]176.74 cm^{2}[/tex]

Step-by-step explanation:

[tex]radius=7.5 cm[/tex]

[tex]area=\pi (radius)^{2}[/tex]

[tex]3.142*(7.5)^{2}cm^{2}[/tex]

[tex]176.7375cm[/tex]

[tex]=176.74cm^{2}[/tex]

[tex]----------[/tex]

hope it helps...

have a great day!!

176.74 hope that was correct

In an isosceles triangle, angle B is 40 degrees, and angle E is 2x+4. What is x?

Answers

Answer:

x = 40°

Step-by-step explanation:

In order to answer this problem, you will need to know the definition of an isosceles triangle.

          An Isosceles triangle is specified as a triangle with 2 of its 3 sides having equal lengths.

Step 1: Draw your triangle.

Since 2 of your 3 sides are equal length and the primary angle measures 100°, you are dealing with an obtuse triangle or, properly named, a obtuse isosceles triangle.

Step 2: Label your angles inside of your triangle.

Remember that the sum of the angles inside of a triangle must add up to equal 180°.

Since we know the triangle we are dealing with in this problem, we can label our unknown angles 'x'.

      Caution: The above statement ONLY applies to this type of triangle.

Step 3: Write an equation.

           100° + x° + x° = 180°

Step 4: Solve for x.

           100° + x° + x° = 180°

             100° + 2x° = 180°

                 2x = 80°

                x = 40°

l'manbergian come to this and say hi

Answers

Answer:

Hey

Step-by-step explanation:

Answer:

Hi how are you

Step-by-step explanation:

I hope you have a wonderful day

Please help?
(I learned this way back so I kinda forgot)

Answers

Answer:Question

Please help?

(I learned this way back so I kind forgot)

1 Which model represents 2(-3)

figure c represents  2(-3)

Answer:

1 Which model represents 2(-3)

figure c represents  2(-3)

Step-by-step explanation:

Find the missing length indicated
A) 25
B) 5
C) 8
D) 3
Please help!

Answers

Answer:

The answer I got is 3. I attached above my solutions. I hope that helps :))

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