In a study of the accuracy of fast food​ drive-through orders, one restaurant had orders that were not accurate among orders observed. Use a significance level to test the claim that the rate of inaccurate orders is equal to​ 10%. Does the accuracy rate appear to be​ acceptable?
Identify the null and alternative hypotheses for this test.

Answers

Answer 1

Answer:Null hypothesis:  

Alternative hypothesis:  

 

 

The p value obtained was a very high value and using the significance level given  we have  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of orders that were not accurate is not significant different from 0.1 or 10% .  

and the accuracy of the test yes is acceptable since the p value obtained is large enough to fail to reject the null hypothesis

Step-by-step explanation:

Data given and notation n  

n=367 represent the random sample taken

X=32 represent the orders that were not accurate

estimated proportion of orders that were not accurate

is the value that we want to test

represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

 

Alternative hypothesis:  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

(1)  

The One-Sample Proportion Test is used to assess whether a population proportion  is significantly different from a hypothesized value .

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

 

Statistical decision  

It's important to refresh the p value method or p value approach . "This methos is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided . The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

 

So the p value obtained was a very high value and using the significance level given  we have  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of orders that were not accurate is not significant different from 0.1 or 10% .  


Related Questions

f(x)= x2 + 5x at x = 4

Answers

Answer:

x)x+5x

Step-by-step explanation:

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{If x = 4 and f(x) = y}[/tex]

[tex]\mathsf{y = 4^2 + 5(4)}[/tex]

[tex]\mathsf{4^2 = 4 \times 4 = 16}[/tex]

[tex]\mathsf{y = 16 + 5(4)}[/tex]

[tex]\mathsf{5(4) = 20}[/tex]

[tex]\mathsf{y = 16 + 20}[/tex]

[tex]\mathsf{36= 20 + 16}[/tex]

[tex]\mathsf{y = 36}[/tex]

[tex]\boxed{\boxed{\mathsf{Answer: \bf{y = 36}}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

If each cube in the rectangular prism measures 1 cubic foot, what is the volume of the prism?

A. 13 cubic ft
B. 7 cubic ft
C. 6 cubic ft
D. 8 cubic ft

Answers

Answer:

C; 6 cubic ft.

Step-by-step explanation:

theres 6 cubes and each are 1 feet 2^ so therefore 6 times 1 = 6 ft. 2^

The answer is c because there is 6 cubes

Use the two-way table to answer the question.
A student surveys classmates to find out if they prefer muffins or cookies with or without nuts. The table summarizes the responses of the survey.

Part B
If a student prefers nuts, what is the approximate probability the student also prefers muffins?
O 11%
O 18%
O 31%
O 46%

Answers

Answer:

A.) 11%

Step-by-step explanation:

Step 1) There are 9 favorable outcomes but only 1 outcome is possible, so that leaves us with a fraction of: [tex]\frac{1}{9}[/tex]

Step 2) Then we need to turn this into a decimal to find the percentage:

1 ÷ 9 = 0.111111111...

Step 3) We now need to turn this into a percent:

0.11 x 100% = 11%

The product of 4 and a number

Answers

Answer:

4*x

Step-by-step explanation:

Answer:

4x

Step-by-step explanation:

x in this case would be the number

send helpp pleaseeeeee​

Answers

Answer:

1. VR and TS

2. TS and RS

3. TV and RS

Step-by-step explanation:

Plzzz helpppp!!! (Plz include steps in answer so Ik how to do it!) Given vectors u = (4,4) and v = (-1,2), find the sum u + V and write
the result in component form.

Answers

u= 4i+4j
v= -i+2j
Lets add them
u+v= 4i+4j-i-2j
u+v= 3i+2j

How are a parallelogram and a trapezoid different?
O A Atrapezoid has only 1 pair of parallel sides but a parallelogram has 2
O BA parallelogram has 4 nght angles but a trapezoid doesn't need to have 4 night angles
OC A parallelogram has only 1 pair of parallel sides but a trapezoid has 2
D. A trapezoid has 4 right angles but a parallelogram doesn't need to have 4 night angles
8 07 13 Answered

Answers

Answer:

(a) A trapezoid has only 1 pair of parallel sides but a parallelogram has 2

Step-by-step explanation:

Required

The difference between a trapezium and a parallelogram

The major difference is:

A trapezium has a pair of parallel side, the other sides are not parallel

A parallelogram has 4 sides where opposite sides are parallel (i.e 2 pairs of parallel sides).

Hence, (a) is correct

Distance between the points (2,7) and (-2,-7)

Answers

Answer:

um isn't it (4,14)

Step-by-step explanation:

please answer asap i need help

Answers

Answer:

x = 11

Step-by-step explanation:

interior angles of a triangle = 180

equation:

⇒ 82 + 31 + 6x + 1 = 180

combine like terms:

⇒ 82 + 31 + 6x + 1 = 180

⇒ 114 + 6x = 180

subtract 114 on both sides:

⇒ 114 - 114 + 6x = 180 - 114

⇒ 6x = 66

divide 6 on both sides:

⇒ 6x = 66

⇒ [tex]\frac{6x}{6} = \frac{66}{6}[/tex]

⇒ x = 11

need help pleaseee !!!

Answers

(-1,2.5), (0,5), (1,10), (2,20)

Milo has 5 nickels. Milo has 6 fewer nickels than Elliott. How many nickels does Elliott have?

Answers

Answer:

11

Step-by-step explanation:

x - 6 = 5

Please help!!! Find the volume of the cylinder.
Round to the nearest tenth.
r= 3 cm
3 cm
V = [ ? ] cm3
Enter the number that goes in the green box.

Answers

Answer:

V ≈ 84.8 cm³

General Formulas and Concepts:

Math

π (pi) - 3.14159265Rounding

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Volume of a Cylinder: V = πr²h

r is radiush is height

Step-by-step explanation:

Step 1: Identify Variables

Radius r = 3 cm

Height h = 3 cm

Step 2: Find Volume

Substitute in variables [Volume Formula]:                                                    V = π(3 cm)²(3 cm)[Volume] Evaluate exponents:                                                                      V = π(9 cm²)(3 cm)[Volume] Multiply:                                                                                           V = 27π cm³[Volume] Multiply:                                                                                           V = 84.823 cm³[Volume] Round:                                                                                             V ≈ 84.8 cm³

Use the net to find the surface area of the cylinder. 6ft and 7ft

Answers

Answer:

A. 84 pi feet^2

Step-by-step explanation:

So the lateral area is the rectangular piece on the net

In order for it to be an actual cylinder the 2 circles are congruent

Therefore the radi, area, circumference ect.. are the same.

So the only missing measurement we need to find the lateral area is the length of the rectangular piece

If you visualize a cylinder, the rectangular piece goes around the perimeter/circumference of the circle

So that means that the length of the rectangle is the circumference of the circle

Circumference = 2*pi*r

2 * pi * 6

= 12 pi

Then 7*12 pi

=84 pi

So the lateral area is 84 pi

:0

Roger has 47 cars. Can they be grouped in more than two ways?

Answers

Answer:

Is there more context? Like an image, describing what cars there are?

Step-by-step explanation:

You can sort cars by model type, brand, color, style, etc. So yes, unless there is only 2 types of car types/brands/colors/style etc

The slope indicates that the height ? feet per minute.

Answers

The distances in length and height and the total have the same unit (e.g. feet or meters). When the slope is decreasing, height and slope have a minus as prefix.

Example: a road with 15% slope has an angle of 8.58°. At a length of 200 feet, a height of 30 feet and a total distance of 202.24 feet is covered. Total Distance, Length and Height.

Round 456.5347 to 1. d.p

Answers

456.5
because the 2 d.p is lower than 5 you round down
The answer is 456.5
....................

Please assist me with this Distribution Problem​

Answers

9514 1404 393

Answer:

  1. 6.1 to 10.3

  2. 9.6 hours

  3. 7.5 hours

Step-by-step explanation:

1. The empirical rule or the supplied chart will tell you that μ ±3σ of the distribution is within 99.7% of the mean. Here, that is ...

  8.2 ±3(0.7) = 8.2 ±2.1 = [6.1, 10.3]

The range of hours is 6.1 to 10.3 hours.

__

2. 2.5% of the distribution is above μ +2σ, or ...

  8.2 +2(0.7) = 9.6 . . . hours

__

3. The bottom 16% of the distribution is below μ -σ, or ...

  8.2 -0.7 = 7.5 . . . hours

Answer the question

Answers

A) that he loses 85% of his investment monthly

Samantha’s annual college tuition is $18,541.89. The college offers a monthly payment plan of 9 equal payments. How much would each monthly payment be?

Answers

i think 2,057.21 because 18,541.89 divided by 9 is 2,057.21

Answer:

18541.89/9 = $2060.21 is the answer

Step-by-step explanation:

Total college tuition = $18541.89

Number of equal payments = 9

Equal payments = 18541.89/9

                           = $2060.21

(Please do correct me if I'm wrong as I'm not completely sure)

A very large bag contains more coins than you are willing to count. Instead, you draw a random sample of coins from the bag and record the following numbers of each type of coin in the sample before returning the sampled coins to the bag. If you randomly draw a single coin out of the bag, what is the probability that you will obtain either a quarter or a penny

Answers

Missing Details

Quarters  ≡ Dimes ≡  Nickels ≡  Pennies

23             ≡   29      ≡  17           ≡  38

Answer:

[tex]P(Q\ or\ P) = 0.5701[/tex]

Step-by-step explanation:

Given

[tex]Quarters = 23[/tex]

[tex]Dimes = 29[/tex]

[tex]Nickels = 17[/tex]

[tex]Pennies = 38[/tex]

First, we calculate total number of coins

[tex]Total = 23 + 29 + 17 + 38[/tex]

[tex]Total = 107[/tex]

The probability of obtaining quarter (Q) of penny (P) is:

[tex]P(Q\ or\ P) = P(Quarters) + P(Pennies)[/tex]

[tex]P(Q\ or\ P) = \frac{n(Quarters)}{Total} + \frac{n(Pennies)}{Total}[/tex]

Take LCM

[tex]P(Q\ or\ P) = \frac{n(Quarters) + n(Pennies)}{Total}[/tex]

[tex]P(Q\ or\ P) = \frac{23 + 38}{107}[/tex]

[tex]P(Q\ or\ P) = \frac{61}{107}[/tex]

[tex]P(Q\ or\ P) = 0.5701[/tex]

if you were a doughnut shop owner and wanted to find out which doughnut you should make more of, which measure of central tendency would you use.​

Answers

Answer:

Mode

Step-by-step explanation:

Measures of central tendency:

The 3 most common measures of central tendency are: The mean, the median, and the mode.

The mean is the average value.

The median separates the lower 50% of the values from the upper 50% of the values.

The mode is the value that appears the most times in the data-set.

In this question:

To find the doughnut you should make more, you should have to know which has the biggest interest from clients, that is, the one that is sold the most, which means that the mode should be used.

Answer:

Mode

Step-by-step explanation:

GEOMETRY!! Will give brainliest

Answers

Answer:

60

Step-by-step explanation:

(20x15)0.5

60 because you distribute the .5


[tex]1.8 greater \: or \: less \: than \: 18percent[/tex]
is 1.8 greater or less than 18% ​

Answers

It’s greater than 18%

Clare bought an expensive
for £38 000 and sold it 3 years later
for £25 000. Find the percentage loss
that she made on the sale. (1 dp)

Answers

i don’t know the answer and that’s on god

express 75 kobo as a decimal of 1 naira 50 kobo​

Answers

Answer:

0.005

Step-by-step explanation:

75/50 = 1.5

1.5/300 = 0.005

PLEASE HELP which number line represents the solution to |x-5|< 3 ?

Answers

It’s the A because it has to have open circles and the “<“ is an and

2x² + 8x²8x-32
how do find the x and y intercept?​

Answers

Answer:

Step-by-step explanation:

multiply and divide your equation then subtarct it and you get your answer

Find the x intercept for the graph, 3x-14y+12=0

Answers

the x-intercept would be (-4,0)

12 girls are having a sleepover at a house, the food there can last them for 10 days. If 3 more girls came over, how long will food last

Answers

Answer:

The answer is 8

Step-by-step explanation:

12*10=120 120/15=8

A circle garden has a diameter of 12 yards what is the area of the garden use 3.14 for pie

Answers

Answer:

37.7 ft

Step-by-step explanation:

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