A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. Upper A 95​% confidence interval that results from examining 771 customers in one​ fast-food chain's​ drive-through has a lower bound of 175.2 seconds and an upper bound of 178.2 seconds. What does this​ mean?

Answers

Answer 1

Answer:

Step-by-step explanation:

The confidence interval is an interval that determines an unknown population parameter. It showcases the probability that a particular population parameter will fall within this interval. As the sample size reduces, the width of the confidence interval usually increases.

What the given question mean is that one can still be 95% confident that the mean drive-through service times of this​ fast-food chain is between 175.2 seconds and 178.2 seconds.


Related Questions

Which graph represents a function, f(x), that has a slop of 3 units and F(0) =14

Answers

Answer:

You didnt leave a picture

Question 1
Equation (1) y = x + 6
Equation (2) y = 2x + 4
Equation (3) y = 3x + 2
Equation (4) y = 5x – 4
The table above shows four equations. If x = 2, which equation has a y-value different from the other three equations?

Answers

equation 4 is different <3

mike and some of his friends went camping. they went on a nature hike and fund 25 different insects.mike found 15 of those insects .what is the ratio of insects mike found to th insects found by the group

Answers

Answer:

15 to10

Step-by-step explanation:

The sum of four times a number and -3 is greater
than 16

Answers

Answer:

2+2+2+2=8-3=5

Step-by-step explanation:

so what about This

Answer:

it is 4x + -3 < 16

Wz intersects triangle abc at points x and y

Answers

Answer:

????????????????????????????????

Step-by-step explanation:

1.6 - 1.3 mathematics

Answers

Answer: 0.3 :) :) :) :)

Please answer asap, thank you so much.

Find the slope

Answers

Slope is -2/5 and y-intercept is 5
Equation would be y= -2/5x + 5
Hope this helps!
the slope is -1/2 rise over run is -2/4 simplified to -1/2

Quick! Please Help Me ASAP!
Marissa's dance studio charges a monthly fee, plus a fixed amount per class. The line shows the cost y, for x taken. Write an equation for the line in slope-intercept form. Show your work.

Answers

Answer:

Step-by-step explanation: The slope is 10 because when x moved positive 2, y moved positive 20 so y = 10x + b and you can just pick one point that the line crosses so I will use (2, 40) so when you put that in the equation it is 40 = 20 + b so b is 20. The answer is y = 10x + 20

A linear equation is given by:

y = mx + b;

where y, x are variables, m is the slope of the line and b is the y intercept.

Let y represent the total monthly charges for x amount of class.

From the graph, the line passes through point (0,20) and (2, 40). Hence, the equation of the line is:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-20=\frac{40-20}{2-0} (x-0)\\\\y-20=2x\\\\y=2x+20[/tex]

Hence the equation for the line in slope-intercept form is y = 2x + 20

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PLEASE HELP!!!Which statement is true? Select all that apply.



The relationship is proportional.

The slope is -6.

The slope is negative.

The y-intercept is -3.

The equation of the line is y = -3x

Answers

Answer:

"The relationship is proportional."

"The relationship is proportional."

"The equation of the line is y = -3x"

Step-by-step explanation:

First, a proportional relationship can be written as:

y = k*x

where k is called the constant of proportionality. (or the slope)

You can see that if we take x = 0, we have

y = k*0 = 0

Then this type of line always passes through the point (0, 0).

And in the graph you can see that this line does that, then:

"The relationship is proportional." is true.

We also can see that as x increases, the value of y decreases, this must imply that k is a negative number, then:

"The slope is negative." is true.

To find the value of the slope, we can take two points that belong to the line.

I will choose:

(0, 0) and (2, -6)

For the slope, we just take the quotient between:

Δy = -6 - 0 = -6  (the difference in the y-components)

Δx = 2 - 0 =  2   (the difference in the x-components)

the slope is:

k = Δy/Δx = -6/2 = -3

Then the slope is -3, and we can write the equation as:

y = -3*x

Then:

"The equation of the line is y = -3x" is true.

Use the graph to answer the question. what is the value of f(5)?​

Answers

well, you can't solve an equation with just one number, at least not this equation. maybe if you show more of the graph, i could help.

Ms. Larson was driving home from a vacation. At noon, she was 120 miles from home. Half an hour later, she was 98 miles from home. If Ms. Larson traveled at a constant rate during this time, what was her speed?

Answers

Answer: her speed was “44 miles per hour”

Assuming Ms. Larson was travelling at a constant speed in that half hour, her speed would have been 44 miles per hour.

In order to find the speed of something, use the formula:

= Distance / Time

The distance was:

= First distance from home - Second distance from home

= 120 - 98

= 22 miles

The time was half an hour so will be presented as:

= 0.5 hours

The speed is therefore:

= 22 / 0.5

= 44 miles per hour

In conclusion, Ms. Larson is going at 44 miles per hour.

Find out more at https://brainly.com/question/16832563.

which one?
a b c or d?​

Answers

Answer:

If you look up the equation on google there is a calculator for that and you should get ur answer there

Step-by-step explanation:

Find the values for X

Answers

Answer

5

12/4=3

20/4=5

the value of x is 5

it said i got 0.5/1 and idk which one was wrong

Answers

Answer:

Step-by-step explanation:

slope is ( - [tex]\frac{4}{5}[/tex] )

The first element in an arithmetic sequence is 2. Its twenty-fifth is 14. Find the value of n so that a - 6.

Answers

Answer:

hindi ko alam yan ha ano

Answer:

the difference between numbers of sequence is 0.5 or 1/2

here,

the formula to find n terms is 0.5n+1.5

this may help you(:

Select all that apply. What are some uses for the distance formula? Finding the perimeter of polygons. Finding the area of rectangles. Finding the equation of a circle. Finding the midpoint of segments. Finding how much gas you will need on a trip.

Answers

Answer:

Everything except the finding the midpoint

Step-by-step explanation:

If the question states the points of a shape, you can find the perimeter and the area of the polygon because you would know the dimensions and the lengths of each side, but in the options, it says the area of a rectangle, and it doesn't have to be a rectangle

You can find the equation of the circle, by finding the diameter of the circle and the radius. With the diameter, you would be able to find the centre of the circle and then you need to divide the diameter by two to get the radius.

For the midpoint, you use the midpoint formula. You just need to sub in the points into the formula and you would get the midpoint

When you are given two points on a graph (or worded problem), and it says that for every x number of km it uses y amount of gas and the question asks to find how much gas is needed in between these two points, you can do this. Find the distance between the two points and then use algebra to work out the amount of gas required

Answer:

12 z abd and also 097

Step-by-step explanation:

Olivia baked 16 mini-loaves of banana bread to be sliced for snacks at a craft fair. She will place an equal number of loaves in 3 different locations. What if Olivia wants to put only whole loaves at each location? How many loaves will be at each location?

Answers

Answer:

The number of whole loaves at each location = 5 loaves

Step-by-step explanation:

This problem is essentially testing your ability to use simple division within remainders, and the number of whole loaves is calculated as follows:

Numer of loaves of bread = 16

number of locations = 3

next, we will divide the number of loaves by the number of locations since Olivia placed an equal number of loaves in 3 different locations:

[tex]= \frac{16}{3} = 5\frac{1}{3}[/tex]

This means that there will be 5 whole loaves and 1 loaf that will be divided equally into the three places.

Therefore, the number of whole loaves at each location = 5 loaves

but remember that there will be a remainder of 1 loaf.

If a car goes from 60 miles per hour to 10 miles per hour in 5 seconds, find its acceleration. Enter your answer as a whole number. Do not label with units of measurement. For example "12." If the answer is a negative number, then you would enter "-12." No spaces between the negative sign and the number. *

Answers

Answer:

[tex]a=-4.47\ m/s^2[/tex]

Step-by-step explanation:

Given that,

Initial speed of a car, u = 60 mph = 26.82 m/s

Final speed of a car, v = 10 mph = 4.47 m/s

Time, t = 5 s

We need to find the acceleration of the car. The rate of change of velocity is called the acceleration of an object. It can be given by :

[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{4.47 -26.82 }{5}\\\\a=-4.47\ m/s^2[/tex]

So, the acceleration of the car is [tex]4.47\ m/s^2[/tex] and it is deaccelerating.

Naomi has a toy car collection of 300 toy cars. She keeps 243 of the toy cars on her wall. What percentage of Naomi's toy car collection does she keep on her wall?

Answers

Answer:81%  or .81

Step-by-step explanation:

81%  or .81

Explanation:

243 ÷ 300 = .81

Answer:

the answer is 81%

Step-by-step explanation:

i used google and an answer key

PLEASE HELP ME PLEASE ILL GIVE BRAINLIEST AND ALOT OF POINTS

Answers

The answer is 2/3!!!

Answer:

Write the fraction in simplest form.

− 7 /12

Step-by-step explanation:

I looked it up on Math_Way

The statue or liberty is 305 feet tall measuring from the ground to the tip of the torch if the model is 1/100 the actual size of the staute of liberty, how tall is the model?

Answers

Given:

Height of statue or liberty from the ground = 305 feet

Model is [tex]\dfrac{1}{100}[/tex] the actual size of the statue of liberty.

To find:

The height of the model of statue.

Solution:

According to the question,

Model =  [tex]\dfrac{1}{100}[/tex] of the actual size

        [tex]=\dfrac{1}{100}\times 305[/tex]

        [tex]=3.05[/tex]

Therefore, the height of the model of statue is 3.05 feet.

ILL MARK U BRAINLIEST!!

Answers

Answer:

C

Step-by-step explanation:

Victory or death meant that he was going to fight until he died, and the others make no sense.

Hope this helps plz mark brainliest :D

Answer:

He wrote the words victory or death

That is the correct answer since it is either he wins or he dies and when he dies is the only way they win

Step-by-step explanation:

I hope you do vote me brainliest it would really help me level up

Please some one help please help me I will pray for you

Answers

Answer:

35

Step-by-step explanation:

Answer: 35

Step-by-step explanation:

How many push ups will Scott do on day 10 and 20?
How many push ups can scott expect after 4 weeks?
Lisa is also including pushups in her workout and says she does more push ups than Scott because she does fifteen push ups each day, is she correct?
If any one is answering this can you explain how you got the answer.

Answers

Answer:I think 57Step-by-step explanation:

Cuz its adding 2 every time then I just did 28 x 2 and added the extra. Does that make sense?

4 x 8 = 28

28 x 2 = 56

56 + 1 = 57

One month Maya rented 2 movies and 5 video games for a total of $32. The next month she rented 8 movies and 3 video games for a total of $43. Find the rental cost for each movie and each video game.

Answers

Answer: The rental cost for each movie is $3.5  and each video game is $5.

Step-by-step explanation:

Let x= rental cost for each movie

y = rental cost for each movie video game.

As per given,

2x+5y = 32      (i)

8x+3y=43        (ii)

Multiply 4 on both sides of equation (i)

8x+20y = 128     (iii)

Eliminate (ii) from (iii)

17y=85

⇒ y = 5   [divide both sides by 17]

Put this in (i)

2x+5(5)=32

⇒ 2x+25= 32

⇒ 2x= 7

⇒ x  = 3.5    [divide both sides by 2]

Hence, the rental cost for each movie is $3.5  and each video game is $5.

1.Your paycheck will take 6.2% out of your check for FICA-social security? So if you gross $250 every 2 weeks how much will you pay in Social security?

I just want to know if the every two weeks part matters

Answers

Yes the 2 weeks part does matter

Is –63 − 88 positive or negative

Answers

Answer:

It would equal to a negative

Step-by-step explanation:

Have a good day!

Answer:

negative

Step-by-step explanation:

-63 and -88 are negative

-63-88 is -151

6TH GRADE MATH A keyboard that costs $400 is marked down 10% for a sale. What is the total savings? What is the new price of the keyboard? you will save $--- and the new price is $-----

Answers

Answer:

$360 and you will save $40

Step-by-step explanation:

400=100%

40=10%

400-40=360

What is an equation in point-slope form of the line that passes through the point (4, −1) and has slope 6?

Answers

Answer:

y + 1 = 6(x - 4)

Answer: y + 1 = 6(x - 4)

-3=ax-14/4
Solve the equation for x in terms of a.

Answers

Answer:

2/a = x

Step-by-step Explanation:

First you multiply both sides by 4, leaving you with -12 = ax - 14. Then you add 14 to both sides, which gives you 2 = ax. Then divide both sides by a, where you get your answer, 2/a = x

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