In a sample of 800 people, 420 are in favor of a proposed scoring system. A golf course wants to implement an electronic scoring system where shots are counted by satellites to reduce human error and to show real-time scores at the clubhouse. Is there enough evidence to conclude that the majority of the golfing community is a proponent of the new system at an alpha level of .05. Determine the number of tails for this problem, the critical value and the test statistic.

Answers

Answer 1

Answer:

We accept H₀ with 95 % of Confidence Interval we have enough evidence to conclude that the majority of members agree with the new system

Step-by-step explanation:

Sample size      800

Sample   x₁   = 420   ( number of people in favor of a proposed scoring system), then

p₁ = 420/800   p₁  =  0,525    p₁  = 52,5 %  then

q₁  =  1  - p₁     q₁  =  1  - 0,525      q₁  =  0,475

Sample size enought to use the approximation of the binomial didtribution to normal distribution

If significance level is 0,05    α  = 0,05

and from z-table we look for z(c)  ( z critical value)

z (c)  = 1,64

Hypothesis Test:

Null Hypothesis                       H₀            p₁  = 0,5

Alternative Hypothesis           Hₐ            p₁  >  0,5

Alternative hypothesis tells us about a one tail-test to the right

To calculate

z(s) =  (  p₁  -  0,5) / √ (p₁*q₁) / n

z(s) =   0,025 / √ 0,525*0,475/800

z(s) =   0,025 / √0,000311

z(s) = 0,025/0,01765

z(s) = 1,416

Comparing z(c)  and z(s)

z(s) < z(c)       1,416 <  1,64

z(s) is in the acceptance region we accep H₀.


Related Questions

i don’t need to show work but it would help :)

Answers

Answer:

d. (73.9 in^2)

Step-by-step explanation:

I suppose that 9.7 in is the diameter.

R=D/2=9.7/2=4.8in

A=π*(R^2)=3.14*(4.8)^2=73.9 in^2

if a city with a population of 500,000 doubles in size every 64 years, what will the population be 256 years from now?

Answers

2,000,000 or 2,000 something 2 hope this helps

Answer:

8,000,000

Step-by-step explanation:

This is because 256 divided by 64 is 4, meaning 64 goes into 256 4 times. If 500,000 is being doubled every 64, it means that in 256 years, the population will have been doubled 4 times.

Meaning? Well...

500,000 x 2 = 1,000,000 = 64yrs

1,000,000 x 2 = 2,000,000 = 128yrs

2,000,000 x 2 = 4,000,000 = 192yrs

4,000,000 x 2 = 8,000,000 = 256yrs

This is 4 times.

so every time it's doubled, it means the sum of that number times 2.

Neville is making posters for a recycling project. If each poster is a rectangle that is 12.5 inches wide and 16 inches tall, what is the perimeter of one poster?

Answers

Answer:

The perimeter of one poster is 57 inches.

Step-by-step explanation:

The perimeter of a rectangle is given by:          

[tex] P = 2(w + h) [/tex]

Where:

w: is the widht = 12.5 in

h: is the height = 16 in

Hence, the perimeter is:

[tex] P = 2(w + h) = 2(12.5 + 16) = 57 in [/tex]

Therefore, the perimeter of one poster is 57 inches.

I hope it helps you!

Factor and solve 121r^2-64t^2

Answers

Answer:

(11r + 8t)(11r - 8t)

Step-by-step explanation:

difference of two squares

The teachers at Eastside High School were asked the number of years they have been teaching. The results are as follows.

3, 4, 9, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 9, 2, 10, 3, 10, 9, 7

Use the data to fill in the box-and-whisker plot below.

Answers

Answer:

I'm not your Slave

Step-by-step explanation:

do it yourself

Find the value of x.

Answers

Answer:

13.8

Step-by-step explanation:

https://www.calculator.net/triangle-calculator.html

It gives you everything you need to know about the triangle

13 . 8 your welcome

Determine whether the equation represents direct, joint, or inverse variation. Then identify the constant.
t = 100/s
y/5 = x
p/qr = 4
C = 2πr
V = 1/3πr^2h
xy = 2/5

Answers

The end is c kkdkkdkdje

Write the form of the partial fraction decomposition of the rational expression.
11x - 10/ (x-6)(x+7)

Answers

Answer:

x+7x2+3x+2=6x+1+−5x+2

Step-by-step explanation:

Simplify the expression: x+7x2+3x+2=x+7(x+1)(x+2)

The form of the partial fraction decomposition is

x+7(x+1)(x+2)=Ax+1+Bx+2

Write the right-hand side as a single fraction:

x+7(x+1)(x+2)=(x+1)B+(x+2)A(x+1)(x+2)

The denominators are equal, so we require the equality of the numerators:

x+7=(x+1)B+(x+2)A

Expand the right-hand side:

x+7=xA+xB+2A+B

Collect up the like terms:

x+7=x(A+B)+2A+B

The coefficients near the like terms should be equal, so the following system is obtained:

{A+B=12A+B=7

Solving it (for steps, see system of equations calculator), we get that A=6, B=−5

Therefore,

x+7(x+1)(x+2)=6x+1+−5x+2

Answer: x+7x2+3x+2=6x+1+−5x+2

A record label surveyed 150 random visitors to its website to discover whether they prefer metal, rock, hip-hop, or jazz. The survey showed that 27 visitors preferred metal, 78 preferred rock, 21 voted for hip-hop, and 24 Liked jazz. If the company estimates sales of 3,000 copies a week at its online store, how many will likely be from the rock genre?* 520 1,500 2,100 1,560​

Answers

Answer:

3,120

Step-by-step explanation:

Because...............

(10x – 2) - (2x - 7)
O 8x + 5
O 12.2 + 5
o 12c - 9
O 83 -9

Answers

Answer:

the first one

8x+5

Step-by-step explanation:

10x-2-2x+7= 8x+5

Help me I need to finish this today

Answers

Answer:

24 glasses

Step-by-step explanation:

Answer is D

1/8 x 24= 3

Brainliest for correct answer

Answers

the answer is D i’m sure

Hannah signs on a $148,500 mortgage at a 4.5% annual interest rate for 20 years. This results in a monthly payment is
$938.48. If only the minimum payment is made in month one, how much of the first payment goes toward reducing her
balance?
First let's find the amount of interest she paid in month 1, then find the amount toward reducing the balance.
Round to the nearest cent.

Answers

Answer:

Interest in one month= 556.88

Her balance is reduced by= 381.6

Step-by-step explanation:

There are 6 flavors of candy in a bag. The probability of randomly selecting strawberry is 1/4, lime is 3/16, lemon is 4/32, cherry is 1/8, and grape is 14/64. What is the probability of randomly selecting a piece of the 6th flavor?

Answers

you need to change them all to have common denominators and then add all the numerators and subtract them from 64.

answer = 8+16+12+8+14 = 58
64-58 = 6
there is a 6/64 probability of selecting a piece of the 6th flavor

What is the value of the following
expression when d=2?

3d + (2.d)-4

Answers

Answer:

6

Step-by-step explanation:

I used a calculator and the answer is 6

According to the Central Limit Theorem, which statements(s) are TRUE. There may be more than 1 correct answer. A. An increase in sample size from n = 16 to n = 25 will produce a sampling distribution for the sample means that has a smaller standard deviation. B. The larger the sample size, the more the sampling distribution of sample means will resemble a normal distribution C. The mean of the sampling distribution of sample means for samples of size n = 15 will be the same as the mean of the sampling distribution for samples of size n = 100. D. The mean of a sampling distribution of sample means is equal to the population mean divided by the square root of the sample size. E. The larger the sample size, the more the sampling distribution of sample means resembles the shape of the population.

Answers

Answer:

Options A, B and C are correct.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

From the Central Limit Theorem, we have that:

The larger the sample size, the closer to the normal distribution the distribution of sample means is.

No matter the sample size, the mean is the same.

The larger the sample size, the smaller the standard deviation.

The smaller the sample size, the larger the standard deviation.

So the correct options are:

A, B, C

If log 7 =0.845, find log (7200).

Answers

Answer:

corbet. orbet

Step-by-step explanation:

nsjebfndnjetjjcs

Can you plz help me by solving the equation and showing how you got the answer

Answers

Answer:80

Step-by-step explanation: It is 80

15% of 12 is 1.8 or 180%. I don’t know how to tell you how I did it though sorry :(

Find which of the following fractions is larger: 51) 2/5,1/3,1/15 A) 2/5 B) 1/3 C) 1/15
52) 3/12,2/6, 1/24 A) 3/12 B) 2/6 C) 1/24​

Answers

A)))))))))))))))))))))))

You spin a spinner that is equally divided into 7 parts, and then you spin it again. 1 part is red, 2 parts are white, 3 parts are yellow and 1 part is black.
What is the probability of the spinner stopping on a white section on the first spin and then a red section on the second spin?

Answers

Answer:

[tex] \frac{2}{7} \: and \: \frac{1}{7} [/tex]

PLEASE HELP
3/4x - 7 = 3 (1/6x +1)

Solve the linear equation and determine whether it’s one solution or infinite solution or no solution

Answers

Use cymath it helps with problems like this

Answer:

One Solution

Step-by-step explanation:

[tex] \frac{3}{4} x - 7 = 3( \frac{1}{6} x + 1)[/tex]

[tex] = > \frac{3}{4} x - 7 = \frac{1}{2} x + 3[/tex]

[tex] = > \frac{3}{4} x - \frac{1}{2} x = 3 + 7[/tex]

[tex] = > \frac{3 - 2}{4} x = 10[/tex]

[tex] = > \frac{1}{4} x = 10[/tex]

=> x = 10 × 4

=> x = 40

Here,

The variable x whose only one value 40 will solve the equation.

Hence,

It has only one solution. (Ans)

uld observe for the entire population represented by the volunteers if all members of this population tasted, respectively, the yogurt with and without the added calcium. If we had used the more accurate software approximation for the degrees of freedom, how would the 90% confidence interval compare to the one constructed with the more conservative value for degrees of freedom

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : It would be narrower  ( C )

Step-by-step explanation:

When The 90% confidence interval is compared to the one constructed ( i.e. one with a more conservative value for degrees of freedom ) it would be narrower and this is simply because the conservative df does not put into consideration the fractional part .

PLEASE HELP 0ffering MAX POINTS

Answers

Answer:

Priya is correct

Step-by-step explanation:

Priya is right because of the plus sign. When its adding you should always subtract from both sides but when you have the subtraction side you have to add to both sides.

Answer:

I think he is right I got that it is priya

Step-by-step explanation:

help me please i will give you brainliest

Answers

Answer:

its b!

please brainliest

260 students were surveyed on whether they prefer apple juice or orange juice. A table of relative frequencies is shown. How many more girls prefer apple juice than boys

Answers

Answer:

We need a picture of the screen plz

Step-by-step explanation:

A scale drawing of a rectangle is made by using a scale factor of StartFraction 5 over 8 EndFraction. The original and the scale drawing are shown below. A rectangle has a length of 18 inches and width of 12 inches. [Not drawn to scale] Which method can be used to find the dimensions of the original rectangle? 18 minus StartFraction 5 over 8 EndFraction = 17 and StartFraction 3 over 8 EndFraction inches and 12 minus StartFraction 5 over 8 EndFraction = 11 and StartFraction 3 over 8 EndFraction inches StartFraction 5 over 8 EndFraction divided by 18 = StartFraction 5 over 144 EndFraction inches and StartFraction 5 over 8 EndFraction divided by 12 = StartFraction 5 over 96 EndFraction inches 18 times StartFraction 5 over 8 EndFraction = 11 and one-fourth inches and 12 times StartFraction 5 over 8 EndFraction = 7 and one-half inches 18 divided by StartFraction 5 over 8 EndFraction = 28 and four-fifths inches and 12 divided by StartFraction 5 over 8 EndFraction = 19 and one-fifth inches

Answers

Answer:

its dddddddddddddddddddddddd

Step-by-step explanation:

The method that can be used to determine the dimensions of the orginal rectangle is multiply the length and the width of the  scale drawing of rectangle by 8/5.

What is a scale drawing?

A scale drawing is smalleer image of a bigger diagram.The scale drawing is usually reduced at a constant dimension

The orginal dimensions can be determined by multiplyinf the dimensions of the scale drawing by 8/5

To learn more about scale drawings, please check: https://brainly.com/question/26388230

Jayda is watching a movie that lasts 1 hour and 37 minutes. She has watched 52 minutes so far. How many minutes are left in the movie? *

Answers

Answer:

45 minutes

Step-by-step explanation:

97-52 = 45

-6y+15= -27 what is y?

Answers

Answer:

y=7

Step-by-step explanation:

-6y= -27-15

-6y= -42

y=7

Answer:

‐6y= ‐27‐15

‐6y= ‐42

y= ‐42/‐6 minus minus sign will be cut

y=7

The volume of this rectangular prism is 240 cubic centimeters. What is the surface area?

Answers

2 (d(h+w) + h w) is the surface area

Find two numbers which add to give 0 and multiply to give -16

Answers

Answer:

4 and -4

Step-by-step explanation:

Other Questions
Which of the following are potential health benefits of consuming plant proteins in place of animal sources of protein? in 2008, zimbabwe ran out of locally produced coca cola and local coke bottlers were not able to import the concentrated syrup needed to make coke from the united states because they could not obtain u.s. dollars. a small amount of coke was imported from south africa, but a single bottle sold for around 15 billion zimbabwean dollars. zimbabwe was experiencing rapid increases in the price level, which is known as What is y =- 4 on a graph? What are the five integral parts of research? Graph by finding the x and y intercepts using a table-3x-6y=0 What was the 3rd Agricultural Revolution referred to as? Which hardware component processes data? If a country has an absolute advantage in every good, then? Two protons (charge q = 1.60210-19 C) move at the same speed v= 1.6 105 m/s in opposite directions parallel to the x-axis. At the instant when they are at the same x-position, the proton moving in the negative direction is at distance r= 0.7 m in the positive y-direction with respect to the one moving in the positive direction.What is the magnetic field direction at the point of the proton moving in the negative direction?+x-x+y-y+z-zWhat is the magnetic force direction experienced by the proton moving in the negative direction?+x-x+y-y+z-z Whats the definition of reflexive? Fashion Design - what are the 3 influences on fashion?? an object with a mass of 5kg is initially at rest on a frictionless horizontal surface. a horizontal force is applied to the objevt. the object changes its position as assume the demand curve for a good is perfectly inelastic and the production of each unit of this good generates external costs. a profit-maximizing firm producing the good in an unregulated free market will when people purchase groceries or household goods in most states, they pay an additional percent of the subtotal. what kind of tax are they paying? A firm can fund an expansion of its operations bySelect one:A. buying stock.B. loaning money.C. paying dividends.D. issuing bonds.Use the table below to answer questions 2 and 3Question 2What is the growth rate of real GDP from 2019 to 2020?Select one:a. -1.86%b. -1.90%c. 4.72%d. 4.38%e. 1.56%Clear my choiceQuestion 3What is the average annual growth rate from 2017 to 2020?Select one:a. 1.10%b. 1.47%c. -0.32%d. -0.43%e. 0.92% Identify the expanded accounting equation from the options below. O Assets = Liabilities + Common Stock - Dividends + Revenues - Expenses O Assets + Liabilities - Common Stock + Revenues - Expenses - Dividends O Assets = Liabilities - Common Stock + Revenues - Expenses - Dividends The mycenaeans (early greeks) are often regarded as the heirs of the minoans. according to one of the supplementary videos, compared to the minoan civilization, the mycenaean culture was a great step forwards a great step backwards an immediate continuation All of the following variables related to the collection of blood may falsely increase the potassium levels EXCEPT:Drawing a purple-top EDTA tube prior to a red-top tube.Mixing the blood collection tube aggressively.Pouring some sample from a purple-top EDTA tube into a red-top tube to make up for low collection volume.Using a 21 G needle with a 10 mL collection tube. What are the 4 most used taxes? What does PACs mean in government?