Out of sample of 500 people, 25% exercise daily. What is the confidence interval for the population mean of people that exercise daily, given a confidence level of 95%?
Cl = (20.98%, 30.02%)
CI = (21.81%, 28.19%)
Cl = (21.20%, 28.80%)
CI = (20.01%, 29.99%)

Answers

Answer 1

Answer:

The answer is C

Step-by-step explanation:

Its correct

Answer 2

The answer is Cl = (21.20%, 28.80%)

The correct answer is option C.

What is problem-solving?

Problem-solving is the act of defining a problem; figuring out the purpose of the trouble; identifying, prioritizing, and selecting alternatives for an answer; and imposing an answer.

Problem-solving starts with identifying the issue. As an example, a trainer may need to parent out a way to improve a scholar's overall performance on a writing talent test. To do that, the instructor will overview the writing exams looking for regions for improvement.

Learn more about Problem-solving here: brainly.com/question/13818690

#SPJ2


Related Questions

In Hilliard School there are 650 students. Of the 650
students, there are 400 students who play at least one
sport. Write and solve a proportion to determine how
many students in a class of 30 students would play at
least one sport. (Round answer to the nearest whole
number.)

Answers

Answer:

It's 50 because I used the right answer hahahahah

Nonsense will be Reported!!​

Answers

Step-by-step explanation:

1. when x is 0

y will be

4x+2y=10

4(0)+2y=10

0+2y=10

collect like terms

2y=10-0

2y=10

divide both sides by 2

2y/2=10/2

y=5

so when x =0 y will equal to 5

2. when x is 1

y will be

4x+2y=10

4(1)+2y=10

4+2y=10

collect like terms

2y=10-4

2y=6

divide both sides by two

2y/2=6/2

y=3

so when x is 1, y is 3

3. when x is 2

4x+2y=10

4(2)+2y=10

8+2y=10

(CLT) 2y=10-8

2y =2

y= 1

Answer:

( x ,y) = ( 0, 5), ( 1, 3), ( 2, 1 ), ( 3, -1)

given equation: 4x + 2y = 10

rewrite it as:

2y = 10 - 4xy = 5 - 2x

solve:

when x = 0

y = 5 - 2(0)

y = 5

when x = 1

y = 5 - 2(1)

y = 3

when x = 2

y = 5 - 2(2)

y = 1

when x = 3

y = 5 - 2(3)

y = -1

Which line segment is a radius of circle F?

FE¯¯¯¯¯

AC¯¯¯¯¯

DC¯¯¯¯¯

ED¯¯¯¯¯

Answers

Answer:

FE

Step-by-step explanation:

I took the test a while back and got this answer right.

As part of a visit, a veterinarian weighs each dog brought to her clinic. At the end of each day, she creates a histogram of all the dogs’ weights. The histogram she created on one particular day is shown.




How many observations are recorded in this histogram?

Answers

16 observations are shown

need help asap first to answer gets BRAINLIEST

Answers

Answer:

[tex]\sf 1.9 * 10^6 \ is \ greater \ than \ 3.56 * 10^4[/tex]

Explanation:

[tex]\sf 3.56\:\cdot \:10^4 = 35600[/tex]

[tex]\sf \:1.9\:\cdot \:10^6 = 1900000[/tex]

Look the the 'to the power' above 10. The greatest number to the power is the greatest number. Here 6>4

Therefore, [tex]\sf 1.9 * 10^6 \ is \ greater \ than \ 3.56 * 10^4[/tex]

Answer: 1.9 × 10^6 is greater

Step-by-step explanation: why its because when you multiply them to each other there number amount is higher hence that's why I know.

What is the answer to this question?

Answers

Step-by-step explanation:

3gh² × 4g³h³

Expand

3 × 4 × g × g³ × h² × h³

To make it easier to understand

(3×4) × ( g × g³) × (h² × h³)

(12) × (g¹+³) × ( h²+³)

= 12g⁴h⁵

Basically, you add the indices of the given letters while also multiplying the whole numbers.

I hope you understand :)

Please be so kind as to mark me brainliest :)

Nicole and Elena wanted to know if listening to music at a louder volume negatively impacts test performance. To investigate, they recruited 30 volunteers and randomly assigned 10 volunteers to listen to music at 30 decibels, 10 volunteers to listen to music at 60 decibels, and 10 volunteers to listen to music at 90 decibels. While listening to the music, each student took a 10-question math test. Given is computer output from a least-squares regression analysis using = volume and = number correct.

Predictor Coef SE Coef T P
Constant 9.9000 0.7525 13.156 0.0000
Volume - 0.0483 0.0116 -4.163 0.0003

S = 1.55781 R-Sq = 38.2% R-Sq (adj) = 36.0%

What is the P-value of this test?
Interpret the P-value of this test.
Assuming the slope of the true regression line relating
y = performance on the 10-question math test to x = volume of the music is _______, there is a _____ probability of getting a sample slope of ________ by chance alone.

Answers

Ok so first off if you want to find the valume to take the b and the h and multiply it by the edges then you get the answer hope this helps!!

4. Earl still hates to wash dishes and take out the trash. He finds his own weighted coin, one that
will randomly land on heads 30% of time. He will flip a coin once for each chore and will
perform the chore if the coin lands on heads.

A.) what is the probability that Earl will get out of the doing both chores?

B.) what is the probability that Earl will have to take out the trash but will not need to wash dishes?

Answers

Answer:

49%

21%

Step-by-step explanation:

Hello!

This is a probability question.

There is a 30% chance they need to do the chore and a 70% chance they don't for every coin toss.

Let's put this into fractions. 30% = 3/10. 70% = 7/10.

Now, to calculate a compound probability, we need to multiply the probability of each of the outcomes of the events.

A)

We have two events here. One where he doesn't do the chore and the other where he also doesn't do the chore.

Both events on their own have a 70% chance of happening or 7/10. So we multiply both the numbers together to find the compound probability. 7/10 * 7/10 = 49/100. 49/100 = 49%.

B)

We follow the same guidelines here. The probability of not doing the chore is 70% or 7/10, and the probability of doing the chore is 30%, or 3/10.

Now you need to multiply both probabilities. 7/10 * 3/10 = 21/100. 21/100 = 21%.

Let me know if you have any questions.

Convert 13 hours 33 minutes to hours

Answers

Answer:

13.55 hours

Step-by-step explanation:

60 minutes is an hour so we divide the number of minutes( 33) by 60.

33 ÷ 60 =0.55

13 + 0.55 = 13. 55 hours

which rectangle has side lenghths of 5 units and 4 units

Answers

Answer:

A(3,3), B(3,7), C(8,7), D(8,3)

Step-by-step explanation:

it was the correct answer hope this helps!!


I will mark brainiest if you can answer the question correctly!! :)

7. Write the equation of the quadratic given the following 3 points.
(0, -1), (4,51), (-2,9)

A) y = 3x2 - X-1
B) y = 3x2 + x - 2
C) y = 2x2 + x - 1
D) y = 3x2 + x - 1

Answers

Answer:

D

Step-by-step explanation:

Sub (0, -1) into 4 choices, Only A, C, D work.

Sub (-2, 9) into A, C, not work.

Sub (4, 51) into D for checking, it works

In an examination for the final year students of a school, 60 offered History, 50, Economics and 48, Literature. 30 offered History and Economics, 16 offered History and Literature, 22 offered Economics and Literature. If 10 candidates offered all the three subjects. (a) find:
(1) the number that offered History only;
(ii) the number that offered Economics only

Answers

Answer:

i (history only60

ii(economics only 50

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST​

Answers

Answer:

B

Step-by-step explanation:

B because you are flipping the -4 5/6.
Hope this helps! :)

The B is correct because

Five times the product of two numbers x and y divided by a third number z

Answers

Answer:

The product of two numbers can be written as "x" and "y", and this product is multiplied by 7. Then, five is divided by "z" which is multiplied by 3. So, the answer is 7(xy) - 5/3z.

Step-by-step explanation:


Someone help me with this pleaseeee

Answers

Answer: (A) x⁰ = 30⁰

Ok done. Thank to me :>

Calculate the missing angles in these isosceles triangles

Answers

angle N and angle M has same value 32 degree because it is an isosceles triangle so the value is 116 degree

Divide. 8 / 95.44 Enter your answer as a decimal in the box.

Answers

Answer:

0.08

Step-by-step explanation:

8 / 95.44 = 0.08

Hope this helps!

Answer:

0.08

Step-by-step explanation:

11. Chad was driving at a constant speed. he drove 196 miles in 3.5 hours.

A. What was her speed in miles per hour?

Write an equation to show the relationship between t (time) and
d (distance traveled)
HINT: Distance = time x speed)

c. If she continues to drive at the same speed, how many miles can she go in 75 hours

d. After 7.5 hours, she decides to decrease her speed to 3/4 of her earlier speed. What is her
new speed?

Answers

Answer:

a - 56mi/h

b - confuzzled so heres the rearranged formulas?

speed = distance/time

time = distance/speed

distance = speed x time

c - 4200 miles

d - 42mi/h

Step-by-step explanation:

s=d/t

196/3.5=56

56x75=4200

1/4 of 56

56/4= 14

14x3=42

The population of a school is 800 and is increasing at a of 2% per year , 6 years

Answers

My answer is assuming that you want the final population after the 6 years since you did not tell me the question.

If it increases 2% a year then it can be expressed in a exponential function.

Result=800*(1+0.02)^6

Result≈900.93

And since there cannot be part of a student, we round down and get the answer of 900 students after the sixth year.

25x - 80 = 120 cant figure this i need help please

Answers

Answer:

x = 8

Step-by-step explanation:

25x - 80 = 120

      + 80  + 80

25x = 200

/25   /25

x = 8

Check your answer:

25x - 80 = 120

25(8) - 80 = 120

200 - 80 = 120

120 = 120

This statement is correct

Hope this helps!

Answer:

8

Step-by-step explanation

20 POINTS TO WHO HELPS ME SOLVE THIS QUESTION

Answers

3w7+89 so 2 to the power of 6

simplify 5/12 x 1/12
A. 1/5
B. 5/144
C. 12/60
D. 5​

Answers

Answer:

B. 5/144

5 can't go in 144 evenly. so its leading to 5/144

Step-by-step explanation:

The answer would be B.5/144

5 1 5

---- x ----- = -----

12 12 144

12 x 12 = 144

What is the simplified algebraic expression for x-(x+7)

Answers

-x^2 + 7 is the simplified expression
-7

Explanation
Cause I’m like that

Find the area of the polygon. 4 cm 8 cm 8 cm 2 cm 2 cm 4 cm . . . Question content area right Part 1 The area of the polygon is

Answers

Answer:

the answer is 28 bc 2+2+4+4+8+8=28 so you answer will be twenty eight centi meters

find the perimeter of a square of side 10.5 cm​

Answers

Answer:

P=42cm

Step-by-step explanation:

Solution: P =4a = 4 x 10.5 = 42cm

1. Find any three rational numbers between 2 and 3.​

Answers

Step-by-step explanation:

9/4, 10/4, 11/4 are three rational numbers between 2 and 3

e Try Again The ratio of men to women working for a company is 4 to 5. If there are 243 employees total, how many women work for the company? women ​

Answers

60.75:48.6


i hope this helps

Simplify the expression:
3x+b+p^2

Answers

Answer:

[tex]3x+b+p^2[/tex] is already simplified

Step-by-step explanation:

[tex]3x+b+p^2[/tex] is already simplified

Answer:

The equation is already simplified

Step-by-step explanation:

Nothing fuurther can be done to this equation

Let U = {English, French, History, Math, Physics, Chemistry, Psychology, Drama}, A = {Math, History, Chemistry, English}, B = {Psychology, Drama, French, Chemistry, English}, and C = {Physics, History, French}. Find the following. n(B u C)

Answers

We are provided with ;

[tex]{\sf{U=\{English,\: French,\: History,\: Math,\: Physics,\: Chemistry,\: Psychology,\: Drama\}}}[/tex] [tex]{\sf{A=\{Math,\: History,\: Chemistry,\: English\}}}[/tex] [tex]{\sf{B=\{Psychology,\: Drama,\: French,\: Chemistry,\: English\}}}[/tex] [tex]{\sf{C=\{Physics,\: History,\: French\}}}[/tex]

And we need no find [tex]{\bf n(B\cup C)}[/tex] . At first Let me tell you that here [tex]{\sf (B\cup C)}[/tex] represents the union of the set B and C.And [tex]{\sf n(B\cup C)}[/tex] represents the cardinal no. of the respective set or no. of elements present in the respective set.So let's find the set [tex]{\sf (B\cup C)}[/tex] first

[tex]{:\implies \quad \sf B\cup C=\{Physics,\: Drama,\: French,\: Chemistry,\: English,\: Psychology,\:History\}}[/tex]

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{n(B\cup C)=7}}}[/tex]

Alternative Method :-

As we know that ;

[tex]{\boxed{\bf n(A\cup B)=n(A)+n(B)-n(A\cap B)}}[/tex]

Where [tex]{\sf (A\cap B)}[/tex] is the Intersection of A and B or the set of common elements of A and B. So now by same concept , now finding the intersection of B and C :-

[tex]{:\implies \quad \sf B\cap C=\{French\}}[/tex]

So , [tex]{\sf n(B\cap C)=1}[/tex] . Now , putting the values in the formula;

[tex]{:\implies \quad \sf n(B\cup C)=n(B)+n(C)-n(B\cap C)}[/tex]

[tex]{:\implies \quad \sf n(B\cup C)=5+3-1}[/tex]

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{n(B\cup C)=7}}}[/tex]

TRUE OR FALSE??

3 Parallel lines A and B ore cut
by transversal X as shown
below.


A.The value of x can be found using
12x – 18 = 8x + 10.


B. Each of the marked ongles measures 56.



C. The marked ongles are classified as vertical
angles.


REWRITE THE FALSE STATEMENT TO MAKE IT TRUE



pls help this hw is due today!!

Answers

Answer:

Step-by-step explanation:

A. True. Vertical angles have equal measure.

B. False. 12x-18=8x+10 -> x=7 -> the angles measure 66 degrees.

C. True. They're formed by a pair of intersecting lines.

Other Questions
What is rhythm?A. words that rhymeB. a group of wordsC. a pattern of beats D. emphasis on words I NEED THE ANSWER FAST PLS! pls answer i will fail:-}A pair of equations is shown below:y = 2x 1y = 4x 5Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points)Part B: What is the solution to the pair of equations? (4 points) For each price in the following table, use the graph to determine the number of jackets this firm would produce in order to maximize its profit. Assume that when the price is exactly equal to the average variable cost, the firm is indifferent between producing zero jackets and the profit-maximizing quantity. Also, indicate whether the firm will produce, shut down, or be indifferent between the two in the short run. Lastly, determine whether it will make a profit, suffer a loss, or break even at each price. in a factory ,12 machines are used to produce an assignment of nailsin ninie days. if 6 machines are added to step up the production,find out how many days it will take to complete the assignment The track team needs new uniforms. The students plan to sell plush toy bears (the school mascot) for $5 each. The students find three companies on-line that sell stuffed mascots. Company A sells 15 bears for $43.05. Company B sells 16 bears for $46.24. Company C charges $34.20 for 12 bears. Which company has the best buy? Identify the hypothesis and conclusion in the conditional statement.It is winter if it is February,Drag and drop each correct answer into the appropriate box.Hypothesis:Conclusion:it is not Februaryit is Februaryit is Mayit is winter Question 2: How is the assembly depicted in this etching connected to the AmericanRevolution? two emotional or personal benefits that will motivate you to find a job Britney added 0.05 moles of copper(II) nitrate solution to 0.1 moles of sodium hydroxide solution andobserved the reaction below.Cu(NO), + 2 NaOH -- Cu(OH), + 2 NaNO,She collected 4.1 grams of copper hydroxide precipitate from the reaction. What was the percent yield ofcopper hydroxide? What would happen to the seasons if the earth was tilted 15 degrees off its orbital plane instead of the usual 23. 5 degrees?. Felipe, an artist, plans to paint and sell some miniature paintings. He just bought some brushes for $11,and paint and canvas for each painting costs $86; he will sell each painting for $87. Once Felipe sells acertain number of his paintings, he will be breaking even. How much will Felipe have earned? How manypaintings will that be? (PLS HELP ASAP) The vertices of a trapezoid are shown below. (0, 6), (6, 12), (6, 9), (0, 12)Which of the following points is a verse for the image produced by a dilation about the origin with a scale factor of 1/2? A. (2, 8) B. (3, 3) C. (3, 6) D. (12, 24) K (-2, 4) is a point on the terminal side of in standard form. Find the exact value of sec () Elise built a large rectangular vegetable garden that is 9 meters long and has an area of 72 square meters. what is the perimeter This organization is focused on mutual defense. The United States is a member. Which international organization does this statement describe? United StatesMexicoCanada Agreement United Nations Children's Fund International Red Cross North Atlantic Treaty Organization. Solve for r. -49 = -7r Find the value of x.A. 8B. 40C. 10D. 26 what was on important featrure of the Sumerian civilization in mesoptamia a it refused to trade or interact with other civilizations b it allowed some of its people to specialize in different jobs c I united its people with a shard retiegion and language d it conquered most of its neighbors using irons weapons The area of one of the small right triangles outlined in blue is A cm2, while the area of the square outlined in red is B cm2. Which expressions show the area of the shaded region in terms of A and B? Check all that apply. 4A B 8A B 2A B 1. 5B 12A. The most important chemical regulator of respiration is.