A television newscaster from a 24-hour news station wants to estimate the number of hours per day its
viewers watch programming on this channel. The newscaster randomly selects 100 viewers and asks them
how many hours per day they watch this station. The newscaster constructs an 85% confidence interval for
the true mean number of hours viewers watch this station. Which of the following would decrease the margin
of error?
using a sample of size 50
using a sample of size 200
constructing a 90% confidence interval
constructing a 95% confidence interval

Answers

Answer 1

Answer:

B, using a sample of size 200

Step-by-step explanation:

just got it right

Answer 2

Answer:

B.

Step-by-step explanation:

EDGE2022


Related Questions

I will give BRAINLIEST!!!The distance between P and T on the coordinate grid is units. (Input whole numbers only) 25 20- P. T -50 40 -30 -20 -10 0 10 20 30 40 Numerical Answers Expected! Answer for Blank 1:​

Answers

Answer:

P and T are 25 units apart.

What do you call a large, round body that revolves around the sun?  
A. Asteroid
B. Comet
C. Moon 
D. Planet​

Answers

Answer:

Planet

Step-by-step explanation:

Because the earth is an planet and it revolves around the sun,

Revolve: revolve means for a smaller object to go around a larger object

in this case its the planet and the sun

hope this helped good luck!!!

Answer:

It is D. i took the test

Step-by-step explanation:

HELP PLEASE THIS IS A TEST FOR NEXT YEARS CLASS
A jewelry store sells charm sets that each contain three heart charms and c character charms. After buying several of these sets as gifts from the store, Mrs. Thompson had a total of 20 charms.

Which expression represents the number of charm sets Mrs. Thompson bought?

A. 20 / (3 + c)

B. 20 x 3 + c

C. 20 / 3 + c

D. 20 x (3 + c)

Answers

Answer:

20 / (3 + c)

Step-by-step explanation:

on the first one shows you how to solve it then second one is the problem just tell me the answer pls have a good day bye

Answers

Answer:

43/30

Step-by-step explanation:

Answer:

1 13/30

Step-by-step explanation:

6 & 5 have a Lcm of 30, so lets use that for our denominator so we can add.

5/6 + 3/5 = 25/30 + 18/30

=

43/30 which is equal to 1 13/30.

Clue is a board game in which you must deduce three details surrounding a murder. In the original game of Clue, the guilty person can be chosen from 6 people, and there are 6 different possible weapons and 9 possible rooms. At one point in the game, you have narrowed the possibilities down to 4 people, 5 weapons, and 7 rooms. What is the probability of making a random guess of the guilty person, murder weapon, and location from your narrowed-down choices, and the guess being correct? Enter a fraction or round your answer to 4 decimal places, if necessary.

Answers

Answer:  

the required probability is 0.0071  

Step-by-step explanation:

Given the data in the question;

we have narrowed the possibilities down to 4 people, 5 weapons, and 7 rooms.

so total number of combinations for the narrowed down metrics is computed as follows;

using multiplication rule:

⇒ 4 × 5 × 7 = 140 ways

Now, the probability of making a random guess from our narrowed down choices as well as getting the guess correct will be;

⇒ 1 / 140

{ assuming that the narrowed down choices have within it the correction combination }

= 0.007142 ≈ 0.0071  { four decimal place }

∴  the required probability is 0.0071  

The 4th grade is planting a garden for a fundraiser at school. The garden has an area of 56 square feet. The length of one side is 7 feet. What is the width of the garden?

A. 56 feet

B. 7 feet

C. 8 feet

D. 49 feet

Answers

The answer would be C sorry if wrong
Yeah the answer is C

Joanna runs at an average speed of 7.5km/h. She runs 15km every day. What time did
she leaves her house if she arrives back at 8:30 am after her morning run?

Answers

avg. speed Joanna runs: 7.5km/h
how much she runs everyday: 15km

15km/7.5= 2 hours of running time everyday

She leaves at 8:30, comes back at ?
8:30+ 2:00= 10:30

Joanna arrives back at 10:30a.m.

Answer:

She might of left her home around 8:00 possibly.

Step-by-step explanation:

Hopefully this helps you.

Please give me brainliest if it is correct.

Thank you xx

Mrs. Okafor had $475 in her savings account. Each year, the value of the savings account increases
by 4%. How much money does she have in her account after 1 year?
Write an equation to represent the problem. Use b to represent the amount Mrs.
Okafor has in her account after 1 year.

Answers

Answer:

$475 + 4% (19 percent) = $494 a year.

Step-by-step explanation:

Which combination of shapes can be used to create the 3-D figure?



-Two regular pentagons and have congruent rectangles

-Two regular decagons and 10 congruent squares

-Two regular pentagons and five congruent squares

-Two regular decagons and 10 congruent rectangles

Answers

The combination of shapes that can be used to create the 3-D figure is; Two regular decagons and 10 congruent rectangles.

What combination of shapes can be used to create the 3-D figure?

From observation of the task content, if follows that the top section of the 3-D figure is a decagon (a regular polygon of 10 sides).

Hence, two decagons are needed and 10 congruent rectangles used which represents the height of the figure are needed.

Read more on polygon;

https://brainly.com/question/1592456

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Answer: D

Step-by-step explanation:

well cause they look like rectangles and then they have two of those things on the top and bottom ill comment on my question if I get it right, not to mention if u count the sides of the figure you'll see that they're is 10 of them lol

D:   Two regular decagons and 10 congruent rectangles 

couldn't comment on it but I got it right lol have a good day!

Ethan earns $12 per hour for walking Ms. Barns's two dogs, plus an additional $7 for brushing the dogs after their walk.

→ Let x represent the hours Ethan works.
→ Let y represent the total he earns each day.

Which number sentence best represents this situation?

A. 12 + 7 + 2 = y

B. 12x · 2 + 7 = y

C. 12x + 7 = y

D. 12x - 7 = y

Answers

Answer:

i think the answer is C. 12x+7=y :)

Step-by-step explanation:

Find the equation of the line which passes through (0, 7) at a gradient of 3.

Answers

Answer:

y = 3x + 7

Step-by-step explanation:

Here, line is passing through the point (0, 7). It's x-coordinate is 0 and y-coordinate is 7

So, y-intercept (b) = 7

Gradient (or slope m) = 3

Equation of line in slope intercept form is given as:

y = mx + b

Plugging m = 3 and b = 7 in the above equation, we find:

y = 3x + 7

This is the required equation of line.

If a student answers 42 out of 48
questions correctly on a quiz, what
percentage of questions did she
answer correctly?

Answers

Answer:

She answered 87.5% correctly.

Step-by-step explanation:

100÷48=2.083

2.083×42=87.5

The percentage of student answered correctly is 87.5%.

What is percentage?

A percentage, a relative value indicating hundredth parts of any quantity.

How to find the prcentage of  a number of quantity?

The following formula is a common strategy to calculate a percentage:

Determine the total amount of what you want to find a percentage.Divide the number to determine the percentage.Multiply the value by 100.

According to the given question.

Total number of questions = 48

Total number of questions which are answered correclty by a student = 42

Therefore, the percentage of question the students answered correctly is given by

[tex]Percentage = \frac{total \ correctly \ answered\ questions}{Toal\ number \ of\ questions\ } \times 100[/tex]

[tex]\implies percentage = \frac{42}{48} \times 100[/tex]

[tex]\implies percentage = 0.875\times 100[/tex]

[tex]\implies percentage = 87.5\%[/tex]

Hence, the percentage of student answered correctly is 87.5%.

Find out more information about percentage here:

https://brainly.com/question/26497520

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The Smith family went out to dinner.

The meal cost $65.56.
The sales tax is 2.5% of the meal.
The tip was 18% of the meal and the tax.
There are 6 people in the Smith family.
What was the cost per person for the meal, including sales tax and tip?

Answers

Answer:

13.22

Step-by-step explanation:

HELP PLEASE !!!!!!!!!!

Answers

Answer:

cccccccc

Step-by-step explanation:

The anwser is c cause if you do adgibra carry the 3 divide by 1 c is your anwser you welcome

Do u know rulers take 2# I already ask this question its just take I put the wrong file

Answers

Answer:

9 and a half inches

Step-by-step explanation:

Just count via the ruler!

Answer:

9 4/10 inches

Step-by-step explanation:

look at where the red dotted line to the right falls on the ruler. It's not quite on 9 and a 1/2 but on the line just before that.

hope this helps

Solve and check. All steps must be shown.
5x + 15 = 75 - 25x

Answers

Answer:

X = 3

Step-by-step explanation:

Answer:

= 2

Step-by-step explanation:5x+15=75-25x

We move all terms to the left:

5x+15-(75-25x)=0

We add all the numbers together, and all the variables

5x-(-25x+75)+15=0

We get rid of parentheses

5x+25x-75+15=0

We add all the numbers together, and all the variables

30x-60=0

We move all terms containing x to the left, all other terms to the right

30x=60

x=60/30

x=2

pls helllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllp
The cost of 4 ice cream cones from the snack bar was $10.40. If each ice cream cone costs the same amount, which model correctly illustrates the relationship? Check all that apply.
y = 10.4 x
y = 2.6 x
y = 4 x

Cost of Ice Cream Cones
A 2-column table with 3 rows. Column 1 is labeled number of ice cream cones with entries 13, 26, 39. Column 2 is labeled Total cost (in dollars) with entries 5, 10, 15.

Cost of Ice Cream Cones
A 2-column table with 3 rows. Column 1 is labeled number of ice cream cones with entries 5, 10, 15. Column 2 is labeled Total cost (in dollars) with entries 13, 26, 39.

Cost of Ice Cream Cones
On a coordinate plane, the x-axis is labeled number of ice cream cones and the y-axis is labeled total cost (in dollars). A line goes through points (0, 0) and (5, 13).

Cost of Ice Cream Cones
On a coordinate plane, the x-axis is labeled number of ice cream cones and the y-axis is labeled total cost (in dollars). A line goes through points (3, 1) and (18, 7).

Answers

Step-by-step explanation:

The model that illustrates the relationship is 4x=10.404x=10.40

The cost of each ice cream was x=\$2.60x=$2.60

Step-by-step explanation:

Let

x----> the cost of one ice cream

we know that

The linear equation that represent this situation is

4x=10.404x=10.40

solve for x

Divide by 4 both sides

x=10.40/4x=10.40/4

x=\$2.60x=$2.60

Answer:

First answer is y = 2.6 (or answer two)

Second answer is         Cost of Ice Cream Cones

A 2-column table with 3 rows. Column 1 is labeled number of ice cream cones with entries 5, 10, 15. Column 2 is labeled Total cost (in dollars) with entries 13, 26, 39. (or the first mini graph-ish thingy, i don't remember what to call it)

Third answer is

             Cost of Ice Cream Cones

On a coordinate plane, the x-axis is labeled number of ice cream cones and the y-axis is labeled total cost (in dollars). A line goes through points (0, 0) and (5, 13). (or the first graph)

Step-by-step explanation:

Correct on edge 2021

and i did the calculations

I hope this helped have a great day!

Consider a square and a regular hexagon (a six-sided figure with sides of equal length). One side of the square is 19 feet longer than a side of the hexagon, and the two figures have the same perimeter. What are the lengths of the sides of each figure?​

Answers

Answer:

square side = 57

hexagon side = 38

Step-by-step explanation:

x = side length of square

y = side length of hexagon

x = y + 19

4x = 6y

substitute for x:

4(y + 19) = 6y

4y + 76 = 6y

subtract 4y from each side of the equation:

2y = 76

divide both sides by 2:

y = 38

x = 57

Answer:

Hi there,

Make the side of the hexagon = x

Side of square = x + 12

Both figures have the same perimeters.

4(x + 14) = 6x

4x + 56 = 6x

Collect like terms:

6x - 4x = 56

2x = 56

x = 28

Length of hexagon side = 28 feet

Length of square side = 42 feet

Hope this helps :-)

WHAT IS (1+1)*0 HELP!

Answers

Answer:

0

Step-by-step explanation:

anything times zero is zero

.........................

Answers

Answer:

lol

Step-by-step explanation:

Find the missing side of this right
triangle.
13
8
х
x = [?]
Enter the number that belongs in the green box.

Answers

Answer: x=233

Step-by-step explanation:

The missing side of this right triangle will be 10.25. The given triangle is a right-angled triangle.

What is Pythagoras Theorem?

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees, then we have:

|AC|² = |AB|² + |BC|²

13²=8²+ |BC|²

|BC|=10.25

The missing side of this right triangle will be 10.25.

Learn more about Pythagoras theorem refer:

https://brainly.com/question/12105522

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What is the measure of angle ABC ?

Answers

Answer:

C

Step-by-step explanation:

quick its timed will give brainlyist
Which of the following units of measure would you use to find the amount of watermelon juice in a carton?
A. cups
B. yards
C. ounces
D. meters

Answers

Answer:

:::::::::::::::::::

c

Answer:

C ounces

Step-by-step explanation:

please mark me as brainiest please I didn't get any brainiest

Help me guys pleased and thank you

Answers

Answer:

#5

Area of side faces:

A = 2(18 + 14)*14 = 896 cm²

Area of bottom face:

A = 18*14 = 252 cm²

Area of 2 triangular faces:

A = 16*14 = 224 cm²

The height of the remaining triangular faces:

h² = 16² - (18/2)² + (14/2)² = 224h ≈ 15 cm

The area of 2 triangular faces:

A = 15*18 = 270 cm²

Paper needed:

896 + 252 + 224 + 270 = 1642 cm²#6

Let the perimeter of the base is P.

If the height is increased by 1.5 cm then surface area is increased by:

1.5P

3people equally share 4 oranges. How many oranges
does each person get?​

Answers

Answer:

[tex]1\frac{1}{3}[/tex]

Step-by-step explanation:

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

Answer:

4 divided by 3 = about 1.33

Step-by-step explanation:

fraction form is 1 1/3

What is the volume of the rectangular prism
A 11cm
B 24cm
C 30cm
D 36cm

Answers

Answer:

D, the volume of the rectangular prism is 36 cm

Step-by-step explanation:

2 x 3 x 6 = 36

Normally I would do a 100 point give away but I'm feeling sad today D: Please help cheer me up. I might think about doing a 100 point giveaway

P.S. Brainly Moderators, don't delete this, I need help, what's 1+1???

Answers

1 + 1 = 2

At first, I thought that the 1 and the other 1 meant a ten and a one, so I decided it would be 11. But soon, a classmate of mine told me it was 25. I divided it with 1 and it is divisible! And since division is also changing the numbers, I figured it would be correct that it is 25. But as I worked it out, I realized that the answer was 2. Because if you put 1 stick and add another 1, you will get 2

Hope it helped!

Simplify 12(3+5y)
A.96y
B.96-8p
C.36+5y
D.36x+60y

Answers

Answer:

60y +  36

Step-by-step explanation:

Answer: D. 36+60y

Step-by-step explanation:

12(3+5y)

36+60y

This equation is all about carrying over the 12 and multiplying against 3 and 5y.

Find the surface area of the square pyramid

Answers

I actually just did this one and the answer is 220 for the triangles and the 121 for the square base so the surface area will be 341

Can someone answer this? I’ll give points + brainalist

Answers

b because when u subtract the largest and smallest number its 20 and thats the most if u do it for all of them
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