A recent taste test showed that 85% of people liked a new chicken sandwich recently added to a restaurant’s menu. The restaurant manager claimed that only 68% liked the new sandwich. To determine whether this sample supports the population proportion of 0.85, a simulation of 100 trials is run, each with a sample size of 30 and a point estimate of 0.85. The minimum sample proportion from the simulation was 0.66 and the maximum sample proportion from the simulation was 0.88.


a) Estimate the margin of error using the half the range method.


b) Use your margin of error to find the interval estimate.


c) Based on the computed interval estimate, is the restaurant manager’s claim that 68% of people liked the new sandwich valid? Explain your answer.

Answers

Answer 1

Answer:

a) The margin of error = 0.11

b) The interval estimate = (0.74, 0.96)

c) Not valid because 68% = 0.68 is less than the values in the interval estimate

Step-by-step explanation:

The statistical data from the population and the simulation are;

The percentage of the people that liked the new chicken sandwich = 85% = The population proportion

The percentage the restaurant manager claims liked the new sandwich = 68%

The number of trials of the simulation = 100 trials

The sample size of each trial = 30

The point estimate of each trial = 0.85

The minimum sample proportion = 0.66

The maximum sample proportion = 0.88

a) The confidence interval = (0.66, 0.88)

By the half the range method, the margin of error is given by half the width of the confidence interval

∴ The margin of error, MOE = (0.88 - 0.66)/2 = 0.11

b) The interval estimate are the expected range of numbers for a parameters

The interval estimate = The point estimate ± MOE

∴ The interval estimate = 0.85 ± 0.11 = (0.74, 0.96)

Given that the manager's claim of 68% is not within the interval estimate, the manager's claim is not valid based on the expected values for the people that liked the new sandwich found with the point estimate and the margin of error


Related Questions

In ΔGHI, the measure of ∠I=90°, HI = 5.6 feet, and IG = 2.8 feet. Find the measure of ∠G to the nearest tenth of a degree.

Answers

Answer: I would say it would be 70

Step-by-step explanation:

please help me! multiple choice

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Answer:

(3,4)and r=2 is is the center and radius of the circle.

stay safe healthy and happy.

x^3+216=0
im not too sure about this problem do you have an answer and explanation ?

Answers

Answer:

solution

x^3+216=0

or,x^3=216

or,x=6

$1,800 is what percent of $6,000?

Answers

Answer:

30%

Step-by-step explanation:

1,800/6,000 = 0.30 -> 30%

Answer:

30%

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

**ANSWER NEEDED FAST** (giving brainliest) Heres the question ;; In a Honeycomb Path puzzle, the goal is to fill every empty hexagon (⬡) with a number so that a path of consecutive numbers crosses every hexagon. Consecutive numbers come one after another. For example 11, 12, and 13 are consecutive. What numbers should fill the center row of the honeycomb below from left to right?

Answers

Answer:

19, 18, 13, 15

Step-by-step explanation:

Hard to explain it over the computer, but that is correct.

Hope that this helps!

Answer:

19, 18, 13, 15 (in order)

Step-by-step explanation:

See the attachment >_<

I've marked the order of the numbers in red, as well as the numbers you'll need to add in blue.

Good luck ^^

Number of offspring and weight, in pounds, of 23 randomly selected rabbits are compared. Which significance test should be used to see if number of offspring and weight have a linear relationship? Assume all test conditions are met. (4 points)

Answers

Answer:

t test for the slope of regression line

Step-by-step explanation:

Suppose a random sample is drawn from the bivariate normal population and the estimated regression equation is found Y^= a +bX , where, b , the sample estimate of β1 is normally distributed with mean β and standard deviation

σyx / √∑(x-x`)².

The test statistic has  t distribution where

t= b-β/sb

where sb=  Syx / √∑(x-x`)² with υ= n-2 degrees of freedom.

It is important to note that the testing of hypothesis that β= 0 is equivalent to testing the hypothesis that variable Y is independent of the variable X in the linear sense.

The test statistic then becomes  t= b/ sb .

If we reject H0 : β= 0 we conclude that the two variables are linearly independent.

what number goes into the missing space

Answers

Answer:

12

Step-by-step explanation:

mrk me brainliest plzzzzzzzzzz

Answer:

b) 12

Step-by-step explanation:

The first image shows the top 2 numbers as 5 and 2 = 5 * 2

=> 10

The Second image shows the top 2 numbers as 3 and 3 = 3 * 3

=> 9

So, the third image shows the top 2 numbers as 2 and 6 = 2 * 6

=>12

Therefore, the missing space in the third circle is b) 12

Hope it helps :)

What is the answer to this?-

Answers

Answer:

yes, by SAS

Step-by-step explanation:

cause the GI and JL are congruent and the same for HG and LK

Pls hurry!!
Find the area of the triangle

Answers

Answer:

A = 6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

L= 1/2 (4+12) 1/2 (3a)

Answers

Answer:

[tex]a \ = \frac{l}{12} [/tex]

Please help! It's Algebra.

Answers

Answer:

Square: x= +or - [tex]\sqrt{7}[/tex], Triangle: x= + or - [tex]\sqrt{23}[/tex]

Step-by-step explanation:

For the square

4[tex]x^{2}[/tex]=28

dvide by four:

[tex]x^{2}[/tex]=7

Take the square root of both sides

x= +or - [tex]\sqrt{7}[/tex]

For the Triangle

(1/2) (2x) (2x)=46

2[tex]x^{2}[/tex]=46

Divide by 2

[tex]x^{2}[/tex]=23

x= + or - [tex]\sqrt{23}[/tex]

PLEASE HELP!
Y=5x-9
-2x-3y=-7
Please show
work!
substition for math

Answers

Answer:

ill edit this and Post the answer in a few m0ments .....

Step-by-step explanation:

Answer:

J

Step-by-step explanation:

K. since you thought it was so funny to do it to me

A jewelry designer sells bead necklaces in a local farmer's market. The profit P that she makes from selling x necklaces is given by P = −x2 + 35x. What is the least number of her necklaces she must sell to make a profit of $300.00?

Answers

Answer:

15

Step-by-step explanation:

Given that the profit equation from selling x necklaces is

P = −x2 + 35x.

To make a profit of $300, the profit P = 300 then

300 = -x2 + 35x

x2 - 35x + 300 = 0

solve by factorization

x2 - 15x - 20x + 300 = 0

x(x - 15) - 20(x - 15) = 0

(x - 15)(x - 20) = 0

x - 15 = 0  or x - 20 = 0

x = 15 or 20

Since 20 is higher, the least number of her necklaces she must sell to make a profit of $300.00 is 15

what is -10+(-3/4)?
PLEASE answer
10 points

Answers

Answer:

the first

-10 3/4

Step-by-step explanation:

;3. i sure

Type the correct answer in the box. Use numerals instead of words.

Find the sum of a finite geometric series.

At the beginning of every year, Molly deposits $200 in a savings account that offers an interest rate of 20%, compounded annually. The total

amount that Molly will have in her account at the end of 3 years is $

Answers

Answer:

$345.60

Step-by-step explanation:

From the above question,

P = Principal = $200

R = Interest rate = 20%

T = Time in years = 3 years

n = Number of times interest is compounded = Annually = 1

First, convert R as a percent to r as a decimal

r = R/100

r = 20/100

r = 0.2 rate per year,

Then solve the equation for A

The formula =

A = P(1 + r/n)^nt

A = 200.00(1 + 0.2/1)^(1×3)

A = 200.00(1 + 0.2)^(3)

A = $345.60

Therefore, the total amount that Molly will have in her account at the end of 3 years is $345.60

The segments shown below could form a triangle.
help please :)

Answers

That’s false because two lines are to short so it’s false

Answer:

The answer is false! :)

hii please help i’ll give brainliest

Answers

Answer:

1. 8

2. 25

3. 3

Step-by-step explanation:

can u simplify 1.3 + (-6) + (-4.25) =

Answers

Answer:

-8.95

Step-by-step explanation:

(-6) + (-4.25) = -10.25

-10.25 + 1.3 = -8.95

Answer:

-8.95

Step-by-step explanation:

1.3-6-4.25=-8.95

find the formula for the nth term of the arithmetic sequence a1=15,d=9​

Answers

The answer to this is a n = a1 + d(n - 1)

The amplitude of a periodic function is 8.5 and its minimum value is 0. What is the functions
maximum value?

Answers

Answer:

maximum value is 17.

Step-by-step explanation:

8.5=1/2(x-0)

8.5=1/2x

8.5=x/2

8.5×2=x

17=x

x=17

Please help with this question

Answers

What are the options???

Answer:

70 in²

Step-by-step explanation:

What is the volume of a sphere with a diameter of 9.1m, rounded to the nearest tenth of a cubic meter?

Answers

Answer: V≈ 394.57m³

Step-by-step explanation:

The volume of the given sphere is approximately 391.3 m³.

What is the volume of a sphere?

The formula for the volume of a sphere is given by (4/3)πr³, where r is the radius of the sphere.

Given that the diameter of the sphere is 9.1 m, we can calculate the radius by dividing the diameter by 2:

Radius = Diameter / 2 = 9.1 m / 2 = 4.55 m

Now, we can substitute the radius value into the formula and calculate the volume:

Volume = (4/3) x π x (4.55 m)³

Volume = 4.18 x (4.55 m)³

Volume = 4.18 x (4.55³)

Volume = 4.18 x 93.859

Volume = 391.34482

Rounded to the nearest tenth of a cubic meter,

Volume = 391.3 m³

Therefore, the volume of the sphere is approximately 391.3 m³.

Learn more about the sphere here:

https://brainly.com/question/12390313

#SPJ2

please help asap!!!!!

Answers

NO
let me explain
y=x+1
y= -x + 5

x + 1 = -x +5

GET RID OF X

1 = 5

1 and 5 do not equal each other and there is no x left either so you can’t solve it.

Answer:

No

Step-by-step explanation:

if both equations begin with 'y=' then we can set the expressions equal to each other:

-x+1 = -x+5

1 ≠ 5 ∴ there are no solution to this system of equations

Please can someone help me on this ASAP pls.

Answers

Answer:

Whats the question? I dont see a file or anything?

Step-by-step explanation:

2x + 5y = 10

i need the slope and y-intercept

Answers

Y intercept is found by having the x value equal 0 (and vise versus for x intercept) so 5y=10 or simplified y=2
Then you have to find the x intercept (2x=10 and or x=5) then it’s just run over rise (2/5)

Answer:

Slope: [tex]-\frac{2}{5}[/tex]

Y-intercept: 2

Step-by-step explanation:

We have to isolate y;

2x + 5y = 10

5y = -2x + 10

y = [tex]\frac{-2x + 10}{5}[/tex]

y = [tex]-\frac{2}{5} x + 2[/tex]

Hope this helps!

Hey guys I need help asap

Answers

Download photo math. It lets you takes pics of the equation so they can solve it for you.

2 items divided EQUALLY by 5?? HELP

Answers

The number 5 divided by 2 is 2 with a remainder of 1 (5 / 2 = 2 R. 1). This is also written as 5 /2 = 2.5. I hope this can help you get your answer sorry if it’s not good

How do I write a slope intercept form equation from standard form?

Answers

To convert from slope intercept form y = mx + b to standard form Ax + By + C = 0, let m = A/B, collect all terms on the left side of the equation and multiply by the denominator B to get rid of the fraction.

Math question!!!!!!!!!!!!!

Answers

Answer:

the correct answer for that would be identity property

Answer:

first one

Step-by-step explanation:

A bag contains 37 coins consisting of only dimes and quarters. To
total amount of money in the bag is $6.85. Which system of
equations
can be used to determine the number of quarters, 9,
and the number of dimes, d , in the bag?

Answers

Answer:

Step-by-step explanation

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