Nkechi wants to use a one-sample z interval to estimate what proportion of candies in a bag are red. She takes a random sample of 24 of the 80 total candies and finds that 18 of the candies in the sample are red. Which conditions for constructing this confidence interval did Nkechi's sample meet? Choose all answers that apply

Answers

Answer 1

Answer: The data is a random sample from the population of interest.

Step-by-step explanation: The condition is met since she randomly selected the sample from the population of interest.

Answer 2

The data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)

What are the conditions for valid inference about one proportion?Random sample: The sample should be taken randomly.Normal distribution of proportion: The sampling distribution of the proportion we're taking about should be normally distributed.Independent observations: Each of the observations must be independent.

The missing options are:

A. The data is a random sample from the population of interests.

B The observed counts of successes and failures are both sufficiently large.

C. Individual observations can be considered independent.

For this case, we're given that the sample was random.

Sample size is 24,which is not sufficiently large (usually we take > 30 as sufficiently large size).

Also, each candle was independent for being red colored.

Thus, the data is a random sample from the population of interests.(Option A), and individual observations can be considered independent.(Option C)

Learn more about valid inference about proportion here:

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Related Questions

Question 4 please help as fast as you can

Answers

Answer:

-4y+1

Step-by-step explanation:

Get 20 points.The square root of 144 is 12, because12 x 12 = 144. The square root of 169 is 13, because
13 x 13 = 169. Which expression will give the closest approximation to the square root of 156?

Answers

Answer:

A

Step-by-step explanation:

I took the assignment before hand thats the answer.

What is the y-intercept of the line graphed on the grid?
(9,2)
(-5,-5)
Help pleaseeee besties

Answers

the y intercept is (0,- 5/2) bestie

(-5,-5)(9,2)

2-(-5)=7
———
9-(-5)=14
m=1/2(simplified)

y=mx+b (m=1/2)(9,2)

2=1/2(9)+b
2=4.5+b
*subtract 4.5 from both sides*

b=-2.5 or (0,-2.5)

Explain how to find a measure of angle ACD
without repositioning the protractor

Answers

Answer:

60 degrees

Step-by-step explanation:

ACD and ACB are complementary angles. Find ACB=30 degrees. Subtract 30 from 90 degrees. ACD=60 degrees.

Answer:

ACD=60

BCA=30

BCD=90

90-30=60

Part of the population of 5,500 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 6 of them are infected. How many elk are likely to be infected? Based on the sample, there will likely be infected elk in the wildlife preserve.​

Answers

Answer:

5444

Step-by-step explanation:

5,500-50=5,450

5,450-6=5,444

Answer:

x = 660

Step-by-step explanation:

Solve

Write the proportion where x is the number of infected elk

6/50 = x/5,500

Cross multiply

5500 ÷ 50 = 1100 x 6

x = 660

you are charged 6% salex tax. You purchase a new bicycle and pay $27 in sales tax what is the purchase price of the bicycle

Answers

Answer:

33$

Step-by-step explanation:

Beacuse when you just ad 27 plus 6 not 6%

Find 23-54 and 54-23
PLZ ANSWER IT STEP BY STEP

Answers

Answer:

23-54= -31

54-23= 31

Step-by-step explanation:

So I knew 54-23 is positive 31 and if they were switched it will be a negative 31

3) Which ordered pair is a solution to the linear
inequality below?
2x-3y <9
A. (6,4)
B. (-1,-9)
C. (2,-5)
D. (-3,-3)
Can you help me

Answers

Answer:

A

Step-by-step explanation:

2(6)-3(4)=0<9

The answer is A try it

Scotty buys 12 cans of Pepsi for $6. At this rate, how much would he pay for 48
cans of Pepsi.

Answers

Answer:

24 cans.

Step-by-step explanation:

6$ for each 12 cans, 12x4=48, so 6x4=24.

Answer:

$24

Step-by-step explanation:

Hope this helped you!

please help HEYMLMUM

Answers

Answer:

J

Step-by-step explanation:

Nicole is playing a video game where each round lasts \dfrac{7}{12} 12 7 ​ start fraction, 7, divided by, 12, end fraction of an hour. She has scheduled 3\dfrac343 4 3 ​ 3, start fraction, 3, divided by, 4, end fraction hours to play the game.

Answers

Answer:

45/7 rounds

6 3/7 rounds

Step-by-step explanation:

Here is the full question

Nicole is playing a video game where each round lasts 7/12 ​ fraction of an hour. She has scheduled 3 3/4 fraction hours to play the game. How many rounds can Nicole play? rounds

Number of rounds she can play = total time she has scheduled / length of each round

length of each round = 7/12

total time she has scheduled = 3 3/4

3 3/4  ÷ 7/12

3 3/4 x 12/7

convert to the total time scheduled to an improper fraction

to convert to improper fraction, take the following steps :

Multiply the whole number (3) by the denominator (4) = 3x 4 = 12 Add the numerator to the answer gotten in the previous step = 14 + 3 = 15 divide the number gotten in the previous step by the denominator = 15/4

[tex]\frac{15}{4}[/tex] × [tex]\frac{12}{7}[/tex] = [tex]\frac{45}{7}[/tex] rounds or [tex]6\frac{3}{7}[/tex] rounds

After stepping into your room with unusual lighting Michaels pupil has a diameter of 6 millimeters.What is the pupils radius

Answers

To find radius just divide diameter by 2
So the answer will be
6 divide 2 = 3mm

What is the value of the expression below? 8 + 24 / 2 X 6 - 4

the answer is 76 but i just need to know the step by step explanation ​

Answers

8 + 24 / 2 X 6 - 4

following order of operations divide 24 by 2:

8 + 12 x 6 -4

Multiply 12 by 6:

8 + 72 -4

Add 8 and 72:

80-4

Subtract to get 76

HELP ME PLEASEEE!!!!
don’t use for points or i’ll report and get ur info.

Answers

-6
-15
Llgsotsoyeitsiysiits
started at 0°C and moved down 3° at a constant rate!! i hope this helped!

If anyone can help :)

Answers

Answer:

irrational

Step-by-step explanation:

reason

[tex] - \frac{5}{52} [/tex]

PLZZZZZ HELPPPP!!!! i'm very confused on what to do !!!! what is the length of the apothem of a regular hexagon with 16cm side lengths round to the nearest tenth

Answers

Answer:

A = 4.6 cm

Step-by-step explanation:

Here, we want to find the length of the apothem, given the side lengths

Mathematically, we have this as;

A = s/2 tan (180/n)

where in this case;

s is the length of the sides which is 16 cm

n is the number of sides (since it is hexagon, we have this as 6)

Substituting these values;

A = 16/2 * tan (180/6)

A = 8 * tan 30

A = 4.62

To the nearest tenth, A is 4.6 cm

What are the steps, in the correct order, to write and solve an equation? Check all that apply *
Mark only one oval.
1. Identify the variable.
2. Identify the operation.
3. Write an equation.
4. Solve the equation.
5. Check the solution.
2. Solve the equation.
3. Check the solution.
( NO LINKS BESTYS )

Answers

The correct order is:

1. identify the variable
2. identify the operation
3. write an equation
4. solve the equation
5. check the solution
Good luck.

The correct order to write and solve an equation is,

1. identify the variable

2. identify the operation

3. write an equation

4. solve the equation

5. check the solution

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

To find the steps to write and solve an equation.

Here, All the steps are,

1. Identify the variable.

2. Identify the operation.

3. Write an equation.

4. Solve the equation.

5. Check the solution.

2. Solve the equation.

3. Check the solution.

Hence, The correct order to write and solve an equation is,

1. identify the variable

2. identify the operation

3. write an equation

4. solve the equation

5. check the solution

Learn more about the mathematical expression visit:

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#SPJ3

A square ceiling has a diagonal of 24 ft. Shelton wants to put molding around the perimeter of the ceiling.


How many feet of molding will he need?

Round to the nearest foot.

Answers

Answer:

16.97 feet

Step-by-step explanation:

a^2=b^2+c^2

24^2=576

b and c are equal divide 576 by 2 to get 288 square root of 288=16.97 feet

Consider the following pair of equations.
Y = x + 4
Y = -2x - 2
Explain how you will solve the pair of equations by substitution. Show all the steps and write down the solution in (x, y) corn.

Answers

Answer:

(- 2, 2 )

Step-by-step explanation:

Given the 2 equations

y = x + 4 → (1)

y = - 2x - 2 → (2)

Substitute y = x + 4 into (2)

x + 4 = - 2x - 2 ( add 2x to both sides )

3x + 4 = - 2 ( subtract 4 from both sides )

3x = - 6 ( divide both sides by 3 )

x = - 2

Substitute x = - 2 into either of the 2 equations abd evaluate for y

Substituting into (1)

y = - 2 + 4 = 2

solution is (- 2, 2 )

A can has a radius of 3 inches and a height of 8 inches. If the height is doubled, how would it affect the original volume of the can?

Answers

Answer:

In the formula, the radius is being squared. That means that doubling the radius of the cylinder will quadruple the volume. ... If we put all of that information together (doubling the radius quadruples the volume, while doubling the height doubles the volume), we find that the volume will be 8 times as large

I NEED HELP ASAP PLZZZZ

Answers

Answer:

B. 30 soda cans

Step-by-step explanation:

Range = max number - min number = 40 - 10 = 30

can someone help ASAPPP PLEASE

Answers

I’m only good at fractions sorry honey

Teresa received $80 for her birthday. At what rate would she have to invest to have $90 at the end of the year

Answers

Saving I don’t know but please let me know :)

Please Help!!
One of the longer sides of a kite is 39 feet. One of the shorter sides is 25 feet. Half the length of the shorter diagonal is 15 feet. what is the area of the kite? (Round to whole if necessary)

Answers

Answer:

487.5 sq ft

Step-by-step explanation:

What is the slope of the line that passes through the points (26, 7) and (-39, 12)?

Answers

Answer:

A, -1/13

Step-by-step explanation:

slope = rise / run

(12-7)/(39-12)

5/-65

simplify: 1/-13

find the distance between the two points (-7,0) and (-9,-8)

Answers

Answer:

in decimal form it is 8.25

True or false 73x=37x

Answers

Answer:

x = 0

Step-by-step explanation:

Solve for y. 4y+5/3=y-10/2

Answers

Answer:

20/9

Step-by-step explanation:

Answer:

[tex]y = - \frac{20}{9} [/tex]

Step-by-step explanation:

[tex]4y + \frac{5}{3} = y - \frac{10}{2} \\ 4y + \frac{5}{3} = y - 5 \\ 4y - y = - 5 - \frac{5}{3} \\ 3y = - \frac{20}{3} \times \frac{1}{3} [/tex]

[tex] y = - \frac{20}{9} [/tex]

The following graph shows a proportional relationship
What is the constant of proportionality between y and z in the graph?
y
6
5-
4
3+
2+
1+
6
Constant of proportionality=

Answers

Answer:

The constant of proportionality between 'y' and 'x' in the graph is 0.75

Step-by-step explanation:

The constant of proportionality is the constant ratio between two quantities that are directly proportional.

When two quantities are directly proportional, then a percentage increase in one of the quantities will result in an equal percentage increase in the other quantity, and the two quantities are therefore, increasing at the same rate to each other

From the graph we have;

When x = 0, y = 0, all graphs of directly proportional relationships have  x = 0 when y = 0

However;

When x = 2, y = 1.5

When there is an 100% increase, we have;

When x = 2 + 100/100 ×2 = 4, y = 1.5 + + 100/100 ×1.5 =3

Therefore, when x = 4, y = 3

The constant of proportionality = The ratio between each 'y' and 'x' value

∴ The constant of proportionality = y/x = 1.5/2 = 3/4 = 0.75

Therefore;

The constant of proportionality between 'y' and 'x' in the graph = 0.75.

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

i believe it b 75% sure i sorry if i can't help

Step-by-step explanation:

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