Describe what is measured by the estimated standard error in the bottom of the independent-measures t statistic. The denominator of the independent-measures t statistic provides an estimate of the standard ____ between a _____ and the When the null hypothesis is true, thne tieanadard ero rhies the standard _____ between a ______ and _____.

To calculate a patient's heart rate, the doctor must take into account a segment of time, such as a minute, and count the number of times the heart beats in that segment.

Heart rate is a term that refers to the number of heart contractions or beats per unit of time.

Heart rate is usually measured at various points, but most commonly it is measured at the wrist, neck, or chest.

According to the above, the most common way for the doctor to establish the patient's heart rate is to count the heart beats in a segment of time such as one minute.

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60 beats per minute

I got it right on the Kahn Academy Unit Test, trust me <3

We can conclude that the value of r(2) which is -6 and x - 2 is not the factor for r(x).

So, we know that the equation is:

Now, calculate the equation when x = 2.

Now, we can conclude that:

Therefore, we can conclude that the value of r(2) which is -6 and x - 2 is not the factor for r(x).

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The phasor form of a sinusoid represents the amplitude and phase angle of the sinusoid in complex number notation. In this case, the phasor form of \(8 sin(20t 57)\) would be 8 ∠57°. The amplitude, 8, is the magnitude of the complex number, and the phase angle, 57°, is the angle of the complex number in the complex plane.

In terms of amplitude and phase angle, a sinusoidal waveform is mathematically represented in phasor form. Electrical engineering frequently employs it to depict AC (alternating current) circuits and signals. A complex number that depicts the magnitude and phase of a sinusoidal waveform is called a phasor. The phase angle is represented by the imaginary component of the phasor, whereas the real part of the phasor represents the waveform's amplitude. Complex algebra can be used to analyse AC circuits using the phasor form, which makes computations simpler and makes it simpler to see how the circuit behaves.

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Answer:

a. Collins

b. A = 8^2

Step-by-step explanation:

Answer:

2 + 2 is 5

Step-by-step explanation:

everyone knows that

Answer:

Obviously its 22

Step-by-step explanation:

The range of the relation is {0, 2, 4}

The range of the relation are the y values

From the table, we have:

y values = 0, 2, 4, 2, 0

Remove the repetition

y values = 0, 2, 4

Hence, the range of the relation is {0, 2, 4}

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Answer:

45%

Step-by-step explanation:

5% owns both so you remove that 5% from both the 40% and 10% because it's already in the "both" category. For example if Sara has both, then it also means that Sara is among the 5% that has both but also in the 40% that owns a bike and the 10% that owns a skateboard. You need to remove Sara from those two categories (skateboard and bike) because she's already in the "both" category.

So when you remove it, it's not 40 and 10 percent but 35 and 5 percent.

The answer is 35+5+5 = 45%

a)

Given dimensions = 16 * 8 * 8

Thickness in one block  = 1cm

Outer side = 1.5 * 2= 3 cm

Hole = 16 - (3+1)

length = 12/2

length = 6cm

Breadth,

total breadth = 8 cm

wall thickness by side = 1 * 2 = 2 cm

hole breadth = 8 - 2  6 cm

Final dimension = (6*6*8) cm

b)

Total side length = 24 feet

one block side = 16 inch

now,

1 feet = 12 inch

= 24 *12 = 288 inches

So,

Block = 288/16 = 18

= 10368/12 = 864 bags

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Answer:

the answer is 0.71

Step-by-step explanation:

it told me

The probability the next customer will pay with something other than a credit card is 0.71.

Probability deals with the occurrence of a random event. The chance that a given event will occur. It is the measure of the likelihood of an event to occur.The value is expressed from zero to one.

For the given situation,

Number of customers paid cash = 83

Number of customers used a debit card = 16

Number of customers used a credit card = 41

Total number of customers = 140

The probability that the next customer will pay with something other than a credit card is

P(e) = (Number of customers paid cash + Number of customers used a  debit card) / Total number of customers.

⇒ \(P(e)=\frac{83+16}{140}\)

⇒ \(P(e)=\frac{99}{140}\)

⇒ \(P(e)=0.7071\) ≈ \(0.71\)

Hence we can conclude that the probability the next customer will pay with something other than a credit card is 0.71.

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Therefore, the correlation coefficient is -2.19.

To calculate the correlation coefficient, we first need to find the mean and standard deviation of both sets of data.

Weight:

Mean = (3175 + 3450 + 3225 + 3985 + 2440 + 2500 + 2290) / 7 = 2995

Standard Deviation = 633.72

Fuel Consumption:

Mean = (27 + 29 + 27 + 24 + 37 + 34 + 37) / 7 = 30

Standard Deviation = 5.73

Next, we need to find the covariance between the two sets of data.

Covariance = Σ[(weight - mean weight) * (fuel consumption - mean fuel consumption)] / (n - 1)

= [(3175-2995)(27-30) + (3450-2995)(29-30) + (3225-2995)(27-30) + (3985-2995)(24-30) + (2440-2995)(37-30) + (2500-2995)(34-30) + (2290-2995)*(37-30)] / 6

= -84317.62

Finally, we can calculate the correlation coefficient using the formula:

Correlation Coefficient = Covariance / (Standard Deviation of Weight * Standard Deviation of Fuel Consumption)

= -84317.62 / (633.72 * 5.73)

= -2.19

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The value of the cost of five oranges is $2.25.

If three oranges cost $1.35, the cost of one orange can be found by dividing the total cost by the number of oranges.

Therefore, one orange costs $1.35 ÷ 3 = $0.45.

Five oranges would cost five times the cost of one orange. Therefore, five oranges would cost $0.45 × 5 = $2.25.

To verify, we can also divide the total cost of five oranges by the number of oranges to ensure that we get the correct cost per orange.

The cost per orange is $2.25 ÷ 5 = $0.45, which is the same as our earlier calculation.

Therefore, the cost of five oranges is $2.25.

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Answer:

above is the solution to the question

Answer:

To calculate your bill for using 2205 kWh of electricity at a rate of $.09884 per kWh, you can use the following formula:

Bill = kWh used x Rate per kWh

Plugging in the values given, we get:

Bill = 2205 x 0.09884

Simplifying the calculation, we get:

Bill = 217.5354

Rounding to two decimal places, the bill would be $217.54.

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The focus of the parabola is located at the point (1/224, 6).

To find the coordinates of the focus of the parabola represented by the equation y = -112x² - x + 6, use the formula for the focus of a parabola in standard form, which is given by (h, k + 1/(4a)), where the equation is in the form y = ax² + bx + c.

Comparing the given equation y = -112x² - x + 6 to the standard form y = ax² + bx + c, a = -112, b = -1, and c = 6.

To find the x-coordinate of the focus (h), use the formula h = -b/(2a).

Substituting the values of a and b into the formula:

h = -(-1)/(2 × (-112))

h = 1/224

To find the y-coordinate of the focus (k + 1/(4a)), use the formula k + 1/(4a) = c - (b² - 1)/(4a).

Substituting the values of a, b, and c into the formula:

k + 1/(4a) = 6 - ((-1)² - 1)/(4 × (-112))

k + 1/(4a) = 6 - (1 - 1)/(-448)

k + 1/(4a) = 6

Now, solving for k:

k = 6 - 1/(4a)

k = 6

Therefore, the coordinates of the focus of the parabola are (h, k) = (1/224, 6).

Hence, the focus of the parabola is located at the point (1/224, 6).

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No Solution.

Since, the x-axis (equation y=0) does not intersect y=-7 at any point. The given pair of equations has no solution

Consider the pair of linear equations in two variables x and y.

a1x + b1y + c1 = 0

a2x + b2y + c2 = 0

Here a1, b1, c1, a2, b2, c2 are all real numbers.

Note that, a12 + b12 ≠ 0, a22 + b22 ≠ 0

1. If (a1/a2) ≠ (b1/b2), then there will be a unique solution. If we plot the graph, the lines will intersect. This type of equation is called a consistent pair of linear equations.

2. If (a1/a2) = (b1/b2) = (c1/c2), then there will be infinitely many solutions. The lines will coincide. This type of equation is called a dependent pair of linear equations in two variables

3. If (a1/a2) = (b1/b2) ≠ (c1/c2), then there will be no solution. If we plot the graph, the lines will be parallel. This type of equation is called an inconsistent pair of linear equations.

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Answer:

The answer to this question can be defined as follows:

Step-by-step explanation:

In the question some iformation is missing, which can be defined as follows:

Given:

The value of males:

\(n_1= 59\\s_1= 1.46\\\bar y_1=2.91\\\)

The value of Females:

\(n_2=60\\s_2= 2.48\\\bar y_2=7.42\\\)

Calculating Degrees of Freedom:

\(\bold{ df=\frac{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}{ \frac{1}{n_1-1} (\frac{s_1^2}{n_1})^2+\frac{1}{n_2-1} (\frac{s_2^2}{n_2})^2}}\\\\\\\)

    \(=\frac{(\frac{1.46^2}{59}+\frac{2,48^2}{60})^2}{ \frac{1}{59-1} (\frac{1.46^2}{59})^2+\frac{1}{60-1} (\frac{2.48^2}{60})^2}\\\)

    \(=9.58 or 95\)

\(\alpha= 1-0.95\\\\\)

   \(= 0.05\)

for 95% confidence interval are:

\(\frac{\alpha}{2} = \frac{0.05}{2} = 0.025\)  

From its t-distribution table , the value of t has an region of (\(\frac{\alpha}{2} \ \ 0.025\)) for (df=95) in its upper tail.

shall be given by = t {0.025}=1.985

Calculating the margin of Error:

\(M_OE =t_{0.025} \times \sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}\)

         \(=1.985\times \sqrt{\frac{1.46^2}{59}+\frac{2.48^2}{60}}\\\\=0.739\)

The difference in mean bill color "\(\mu_2 -\mu_1\)" with 95% confidence intervals:

\(\to (7.42 - 2.91) \pm 0.739\\\\\to 4.51 \pm 0.739\)

Lower limit=3.771

Upper limit = 5.249

The expression that is equivalent to the given expression, 6r + r + 3 + 6, is 7r + 9

From the question, we are to determine the expression that is equivalent to the given expression.

The given expression is

6r + r + 3 + 6

To determine the expression that is equivalent to the given expression, we will simplify the expression

To simplify the expression, we will add 6r and r together

6r + r = 7r

Thus,

The expression becomes

7r + 3 + 6

Also, we will further simplify the expression by add 3 and 6 together

3 + 6 = 9

Thus, the expression becomes

7r + 9

Hence, the expression is 7r + 9

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In a nonexperimental method, relationships between variables are studied by making observations or measures of the variables of interest.

Research without either the manipulation of an independent variable, the random assignment of individuals to conditions or orders of conditions, or both, is referred to as non-experimental research.

The non-experimental study is entirely dependent on variables that the researcher has no control over. By whatever means, they cannot manipulate, control, or change the subjects. Thus, all they can do is continue their research while monitoring and interpreting their subjects.

It is safe to assume that a non-experimental research design is used when there is no specific cause-effect study problem and the researcher simply wants to grasp a topic in depth without constraining it with variables. They examine the natural phenomena as they take place.

Therefore, in a nonexperimental method, relationships between variables are studied by observing or measuring the variables of interest.

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The correct anwer is C I think... I hope That helps :)

||-//

Answer:

\(A : \frac{5}{8}\)

Step-by-step explanation:

Axis Interception points of \(\frac{5}{8}x - \frac{8}{7} :\) X intercepts: \((\frac{64}{35},0)\), Y intercepts: \((0, -\frac{8}{7})\)

Inverse of \(\frac{5}{8}x-\frac{8}{7}:\) \(\frac{56x+64}{35}\)

Slope of \(\frac{5}{8}x -\frac{8}{7}: m = \frac{5}{8}\)

Hope I helped, if so may I get Brainliest and a thanks?

Thank you, have a good one! =)

The maximum length of the beluga whale is 17 feet.

How to calculate percentage?

A percentage is a ratio or fraction where the full value is always 100.It is a certain number or part in every hundred. It is a fraction with the denominator 100, and the symbol for it is "%."We must divide the value by the entire value to find the percentage, and then multiply the resulting number by 100.

Percentage formula = (Value/Total value) × 100

It is given that 105.88% of the maximum length of the beluga whale is 18 feet.

Let the maximum length of the beluga whale be x

105.88% of x = 18 feet

(105.88 /100) × x = 18

(10588/10000) × x = 18

x = 18 ÷ \(\frac{10588}{10000}\)

x = 18 × \(\frac{10000}{10588}\) = \(\frac{180000}{10588}\) = 17.00003 = 17 feet

Therefore, the maximum length of the beluga whale is 17 feet.

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The midsegment is equal to the average of the lengths of the bases, so:

Where:

and

Therefore:

Answer:

x < -11 or x ∈ (-∞, -11)

Step-by-step explanation:

4x + 6 < 3x - 5

<=> 4x - 3x < -5 - 6

<=> x < -11

Answer:

x+1 ???

Step-by-step explanation:

4x+6<3x-5

4x-3x=x

6-5=1

x+1

can't remember if I did it right

Answer:

You have to multiply the input 3 times to get the output.

\(6 {x}^{2} - 6x - 72 = \)

\(6( {x}^{2} - x - 12) = \)

\(6(x - 4)(x + 3)\)

Answer:

Step-by-step explanation:

x=-1 is the counter example as ((-1)2)^(1/2)=1 and not -1.

∠trs and ∠vrw are a pair of vertical angles as they are opposite angles formed by the intersection of lines t and v. The correct option is B).

The concept of vertical angles states that they are a pair of non-adjacent angles formed by the intersection of two lines. In the given options, the angles that are formed by intersecting lines and fulfill this condition are ∠trs and ∠vrw.

These angles are opposite angles, located on opposite sides of the intersection of lines t and v, and are congruent. Thus, ∠trs and ∠vrw are a pair of vertical angles. This concept is crucial in geometry, as it is used to establish congruence, similarity, and to prove theorems.

The correct answer is B).

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