what happens when the sampling distribution is altered (e.g. filtering out all values below the mean) and how does it effect type 1 errors.

The percent yield is calculated as the ratio of the actual yield to the theoretical yield, multiplied by 100.

Percent yield is a measure of how efficient a chemical reaction or process is in producing the desired product.

The formula for percent yield is:

Percent Yield = (Actual Yield / Theoretical Yield) * 100

The actual yield is the amount of product obtained from the reaction or process, typically measured in grams or moles. It represents the actual amount of product obtained in the laboratory.

The theoretical yield, on the other hand, is the maximum amount of product that can be obtained based on stoichiometry and other factors. It is calculated using balanced chemical equations and the starting amounts of reactants.

By dividing the actual yield by the theoretical yield and multiplying by 100, we get the percent yield, which is expressed as a percentage.

This value provides insight into the efficiency of the reaction or process, with a higher percent yield indicating a more efficient conversion of reactants into products.

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Answer:

17

Step-by-step explanation:

Based on the 2nd equation, it seems that x=-3-3y.  I got that by subtracting both sides by 6y and then dividing both sides by 2.  Now  substitute that in place of x in the first equation.  (-3-3y)/3-2y=14.  Simplify that and get               -1-y-2y=14.  Add 1 to both sides and simplify.  You get -3y=15.  Divide both sides by -3 and get y=-5.  Now substitute -5 into the equation for x. x=-3-3(-5)

x=-3+15=12

So x=12 and y=-5.  Now do 12-(-5)=12+5=17

Answer: 289,952,278

Step-by-step explanation: Big brain

Option B is correct. The anticipated and actual Metascore evaluations typically differ by only 7.8 points.

Given that,

We looked at the correlation between rotten tomatoes and metascore scores for a sample of 75 well-known films. A linear form with a strong positive relationship was visible in the scatterplot. Here are the outcomes of the stat crunch linear regression.

We have to find the number 7.8. What is this saying to us.

The average difference between Metascore and Rotten Tomatoes ratings is 7.8 points.

7.8 is the Estimate of error standard deviation. It is not Margin of error.

So, Option A is not correct.

The anticipated and actual Metascore evaluations typically differ by only 7.8 points.

The average error in predicted value and observed value is standard error.

So, Option B is correct.

On average the total variation in the predicted Metascore ratings is 7.8% of the total variation in the observed Metascore ratings.

It's not squared value.

So, Option C is not correct.

Therefore, Option B is correct. The anticipated and actual Metascore evaluations typically differ by only 7.8 points.

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Answer:

x = 3

Step-by-step explanation:

12x =  36

There is only one step

Divide both sides by 12

x = 3

Answer: what he said

Step-by-step explanation:..

The model for the total number n in million of miles for all public roadways in the United States from 2000 through 2011 can be approximated by the equation:

n = -0.3t^3 + 5.4t^2 + 3.5t + 2.7

In this equation, t represents the year, with t = 0 corresponding to 2000.

To find the total number of miles for a specific year within this time period, substitute the corresponding value of t into the equation and calculate the result.

For example, if you want to find the total number of miles for the year 2005 (t = 5), substitute t = 5 into the equation:

n = -0.3(5)^3 + 5.4(5)^2 + 3.5(5) + 2.7

Simplify the equation:

n = -0.3(125) + 5.4(25) + 17.5 + 2.7
n = -37.5 + 135 + 17.5 + 2.7
n = 117.7 million miles

Therefore, the total number of miles for all public roadways in the United States in 2005 is approximately 117.7 million miles.

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Answer:

4. rise

match the following definition with the correct term:

the vertical distance between two points on a line

1. run

2. rate of run

3. slope

4. rise

The equation to determine the length and width of the rug is

28 = w² + 12w

Since, the shape of the rug is rectangle, therefore area of rectangle has been used to obtain the solution.

What is a rectangle?

Rectangle is a flat, two-dimensional shape, having four sides and vertices with opposite sides being equal and parallel. We may easily represent a rectangle in an XY plane by using its length and breadth as the arms of the x and y axes, respectively.

Rectangles can also be referred to as parallelograms because their opposite sides are equal and parallel.

We are given a rectangular rug with an area of 28 square feet.

Also, the rug is 12 feet longer than it is wide.

So,

Let 'l' be the length of the rug and 'w' be the width of the rug

As given, Length is 12 feet longer than its width

Therefore, l = w + 12

We know Area of rectangle = Length * Width and area is given to be 28 square feet.

So,

⇒28 = (w + 12)w

⇒28 = w² + 12w

Hence, the equation to determine the length and width of the rug is

28 = w² + 12w.

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Question: Tammy has a rectangular rug with an area of 28 square feet. The rug is 12 feet longer than it is wide.

Create an equation to determine the length and the width of the rug.

Answer: A. -3/4x - 3

Let the number of cards equal x.

Set up an equation for both companies, set equal to each other and solve for x.

0.10x + 12 = 0.12x + 10

Subtractb0.10x from both sides:

12 = 0.02x + 10

Subtract 10 from both sides:

2 = 0.02x

Divide both sides by 0.02:

X = 2/0.02

X = 100

100 cards would be the same price for both companies.

Answer:

The wood for 7.50!

Step-by-step explanation:

You are trying to find the unit rate in this situation!

It's simple, Cost ÷ Amount/Weight

13.65 ÷ 7 = 1.95

7.50 ÷ 5 = 1.50

Clearly, the wood for 7.50 is the better buy!

Answer:

the least common denominator is 40

Step-by-step explanation:

brainliest pls

Answer:

40

Step-by-step explanation:

because the the LCD of them is 40

Answer:

13 in

Step-by-step explanation:

add them all because its says perimeter

Answer: 13 in.

Step-by-step explanation: 1+1+3+5+3 = 13

Answer:

6 laps

Step-by-step explanation:

Each lap Jeffrey needs to run is one tenth of a mile he wants to run threee fifths of a mile how many laps does he need to run

One tenth of a mile = 1/0

Three fifths of a mile = 3/5

From the question:

1/10 mile = 1 lap

3/5 mile = x

Cross Multiply

1/10 mile × x = 3/5 mile × 1 lap

x = 3/5 mile × 1 lap/ 1/10 mile

x = 3/5 ÷ 1/10

x = 3/5 × 10/1

x = 6 laps

Therefore, for there fifths of a mile(3/5) he needs to run 6 laps

Answer:

7

Step-by-step explanation:

Answer:

I think its 10, from the mid point 41 then going to upper quarter and lower which is 27 and 37 so it means -10

First term (a1) = -7

Second term (a2) = -2

Common difference: a2 - a1 = -2-(-7) = 5

Hence, Fifth term = a1 + 4d = -7 + 4(5) = 13

The answer is B, A rectangle, 7 cm by 5 cm

Answer:

c.

Step-by-step explanation:

60= (4x - 20)

expl: vertically Opposite angles

The solution set of the system of equations is {(2,2), (4,-2)}

What is the solution to an equation?

In order to make the equation's equality true, the unknown variables must be given values as a solution. In other words, the definition of a solution is a value or set of values (one for each unknown) that, when used as a replacement for the unknowns, transforms the equation into equality.

4x+2y =12------>(1)

Take some random values for x. Find the corresponding y  values

Example: when x=0

(1) => 4(0)+2y = 12

  =>  0+2y = 12

  =>      2y =12

 =>     y= 12/2 = 6

The point obtained is (x,y) = (0,6)

This way, we get a line when we graph the equation 4x+2y =12.

Similarly, when we graph the equation  y= -x² + 4x -2 , we get a parabola

Graph is attached:

In the graph, both graphs intersect at the points (2,2) and (4,-2)

Thus, the solution set of the system of equations is {(2,2), (4,-2)}

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A sample size of 329 would be required to be 99% confident that the estimated proportion of women-owned businesses not providing employee benefits is within 6 percentage points of the true population proportion.

To calculate the required sample size, we can use the formula:

n = (\(z^2\) * p * q) /\(e^2\)

where n is the sample size, z is the z-score corresponding to the desired level of confidence (in this case, 2.576 for 99% confidence), p is the estimated population proportion (0.165, based on the NWBC's finding), q is 1-p, and e is the maximum error we want to tolerate (in this case, 0.06 or 6 percentage points).

Substituting the values, we get:

n = (2.576^2 * 0.165 * 0.835) / \(0.06^2\)

Solving for n, we get:

n ≈ 329

Therefore, a sample size of 329 would be required to be 99% confident that the estimated proportion of women-owned businesses not providing employee benefits is within 6 percentage points of the true population proportion. Note that this assumes a simple random sample and that the population size is much larger than the sample size, so the finite population correction is not needed.

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Zeroes of a function are the values of x when f(x) = 0

So to find the zeroes of the function from the graph search for the points whose y-coordinates = 0

The y-coordinates of the point = 0, if the points lie on the x-axis

That means the zeroes of the function are the points of intersection between the graph and the x-axis

let us see that in the graph

I will draw it and post it here

From the graph

The graph intersects x-axis at points (-7, 0) and (-2, 0)

Then the zeroes of the function are (-7, 0) and (-2, 0)

Let us make the table

x f(x)

-2 0

-1 6

0 14

1 24

2 36

The original price of the shirt is $407

Percentage discount is a discount that is given to a product or service that is given as an amount per hundred.

From the question, to find the original price of the shirt

We use the equation:

0.19/100 =77.33/x

0.19x = 7733

dividing both side of the equation by 0.19

x=40700\100

x = 407

Hence, the original price of the shirt before the discount is $407

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\(\\ \sf\longmapsto V=1610.82\)

\(\\ \sf\longmapsto \dfrac{1}{3}\pi r^2h=1610.82\)

\(\\ \sf\longmapsto \pi r^2(19)=1610.82(3)=4832.36\)

\(\\ \sf\longmapsto 3.14r^2=254.34\)

\(\\ \sf\longmapsto r^2=81\)

\(\\ \sf\longmapsto r=9m\)

Therefore, on average, a customer arriving during the morning rush would wait approximately 2.17 hours to be served.

To determine the average waiting time for a customer arriving during the morning rush at the coffee shop, we need to consider the arrival rate and the capacity of the shop.

Given that 100 customers per hour arrive at the coffee shop during the two-hour morning rush, and the shop has a capacity of 80 customers per hour, we can conclude that there will be more customers arriving than the shop can accommodate.

To calculate the average waiting time, we need to account for the time spent by customers who have to wait due to the shop being at full capacity. For simplicity, let's assume that customers arrive uniformly throughout the two-hour period.

During the first hour (8 a.m. to 9 a.m.), there will be 100 customers arriving, but the shop can only serve 80 customers. Therefore, 20 customers will have to wait for their turn to be served.

During the second hour (9 a.m. to 10 a.m.), again, 100 customers will arrive, but since the shop is already at full capacity, all 100 customers will have to wait for their turn.

In total, during the two-hour morning rush, there will be 20 customers who wait for one hour and 100 customers who wait for the entire two hours.

To calculate the average waiting time, we can sum up the waiting times and divide by the total number of customers:

Average waiting time = (20 * 1 hour + 100 * 2 hours) / (20 + 100) = (20 + 200) / 120 = 2.17 hours

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Answer:

3/10

Step-by-step explanation:

Step-by-step explanation:

If cholesterol level were changed to being measured in grams instead of milligrams, the correlation between fat content and cholesterol level would not be affected.

This is because correlation is a measure of the strength and direction of the linear relationship between two variables, and converting the units of measurement does not change the underlying relationship between the variables. So, the correlation coefficient of 0.75 would remain the same whether cholesterol level is measured in milligrams or grams.

The correlation between fat content and cholesterol level for the 20 different brands of American cheese slices is 0.75. If you change the measurement of cholesterol level from milligrams to grams (1 gram = 1000 milligrams), it will not affect the correlation. The correlation coefficient will remain 0.75, as it is unit-less and only represents the strength and direction of the relationship between the two variables.

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The probability that a nine year old will take longer than 3 minutes to eat a donut is 0.667 .

Given that the time taken by 09 years old,

Consider that it takes 0.5 to 4 minutes inclusive for a 9-year-old to eat a donut.

Let X = Time

minutes, how long it takes a 9 year old to eat a donut.

Then X: U(0.5, 4).

The Probability Distribution Function:

P(X) = 1/4 - 0.5 = 0.2857

Cumulative Function would be:

F(x) = x -0.5 /0.5

The probability that a randomly selected 9-year-old child will eat a donut in at least 2 minutes is

    P(X ≥ 2) = 1 -F(2)

⇒ 1 - 2 -0.5/3.5

⇒ 0.8571

b) The probability that another her 9-year-old child will eat a donut in 2 minutes or more if she has eaten a donut in 3.0 minutes or more.

P(x >2 /x> 3.0)

= 0.571429/ 0.857143

= 0.6667

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Answer:

A number that can be written as a fraction.

Example: -3/7