The parameter estimate is statistically different from zero when the absolute value of the t-statistic is _____.

Answer:

$127.50

Step-by-step explanation:

The average profit is found by adding up the profits from both scenarios.

39(4.5) + 1(-48)

= $127.50

Brainliest, please :)

Answer:

10 miles

Step-by-step explanation:

45/60 x 8 = 6 miles

8 x 1.5 = 4 miles

Now, add the two products together.

6 + 4 = 10 miles.

The boat traveled 10 miles in total.

Answer:

x=125, y=125

Step-by-step explanation:

180-55=125

x and y are alternate angles

Answer:

x=125

y= 125

Step-by-step explanation:

x + 55 = 180

y = x

alternate interior angles are equal

Answer:

84 km

Step-by-step explanation:

you times 7 by 4 and get 28 then you times 3 by 28 and get 84 km

The answer to the given problem is ∫3−5[2f(x) 6g(x)]dx = 108. This can be found by using the properties of integration and substituting the given values for the integrals of f(x) and g(x).

Given that:

∫3−5f(x)dx=6

∫3−5g(x)dx=3

We need to find: ∫3−5[2f(x) 6g(x)]dx

To solve this problem, we will use the properties of integration:

Property 1:

If c is a constant, then

∫cf(x)dx=c∫f(x)dx

Property 2:

If f(x) and g(x) are two functions, then

∫[f(x) + g(x)]dx = ∫f(x)dx + ∫g(x)dx

Using Property 1, we can rewrite the given equation as:

∫3−5[2f(x) 6g(x)]dx = ∫3−5[12f(x)g(x)]dx

Using Property 2, we can further simplify the equation as:

∫3−5[12f(x)g(x)]dx = ∫3−5[12f(x)]dx + ∫3−5[12g(x)]dx

Now we can substitute the given values:

∫3−5[12f(x)]dx + ∫3−5[12g(x)]dx = 12∫3−5f(x)dx + 12∫3−5g(x)dx

Substituting the given values for the integrals of f(x) and g(x), we get:

12∫3−5f(x)dx + 12∫3−5g(x)dx = 12(6) + 12(3)

Simplifying, we get:

12∫3−5f(x)dx + 12∫3−5g(x)dx = 12(6) + 12(3) = 12(9) = 108

Therefore, the answer is

∫3−5[2f(x) 6g(x)]dx = 108

The answer to the given problem is ∫3−5[2f(x) 6g(x)]dx = 108. This can be found by using the properties of integration and substituting the given values for the integrals of f(x) and g(x).

the complete question is :

if ∫3−5f(x)dx=6, and ∫3−5g(x)dx=3 , then ∫3−5[2f(x) 6g(x)]dx will be equal to  ?

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Answer:

Do you have a pic of the prob?

Step-by-step explanation:

I need more info...

Answer:

Step-by-step explanation:

Answer:

Your answer is

equation y=-4x+4

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The mean of X is y, and the variance of X is also y.

To find the mean and variance of the random variable X, which follows a Poisson distribution with parameter y, we need to use the relationship between the exponential distribution and the Poisson distribution.

Given that Y follows an exponential distribution with parameter λ, we know that the probability density function (PDF) of Y is:

f_Y(y) = λ * e^(-λy) for y ≥ 0

To find the mean of X, denoted as E(X), we can use the property of the exponential distribution that states the mean of an exponential random variable with parameter λ is equal to 1/λ. Therefore, we have:

E(Y) = 1/λ

Now, let's consider X, which follows a Poisson distribution with parameter y. The mean of a Poisson random variable is equal to its parameter. Hence:

E(X) = y

To find the variance of X, denoted as Var(X), we use the relationship between the exponential and Poisson distributions. The variance of an exponential distribution is given by 1/λ^2, and for a Poisson distribution, the variance is equal to its parameter. Therefore:

Var(Y) = (1/λ)^2

Var(X) = y

So, the mean of X is y, and the variance of X is also y.

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Answer:

w=7-vg

Vg=7-w

Vg/v=7-w/v

G=7-w/v

Answer:

A) The line of best fit must go through the

origin of the scatter graph

Answer: 1

Step-by-step explanation:

\(\displaystyle\\\frac{14}{33} *\frac{55}{8} *\frac{12}{35} =\\\\\frac{14*55*12}{33*8*35}=\\\\\frac{2*7*5*11*3*4}{3*11*2*4*5*7}=\\\\\frac{1}{1}=\\\\1\)

Answer:

  (b)  2y ≤ 25x and y ≥ 245

Step-by-step explanation:

You want the teacher/student ratio to be at least 2/25, so ...

  x/y ≥ 2/25

  25x ≥ 2y . . . . . multiply by 25y

  2y ≤ 25x . . . . . swap sides to get the form used in answer choice B

The other inequality says the number of students is at least 245:

  y ≥ 245

Answer:

B- 2y ≤ 25x and y ≥ 245

Step-by-step explanation:

Peep the attachment (proof)

Answer: y = 5x + 26

Step-by-step explanation:

To find the equation of a line that is perpendicular to the given line y = -1/5x + 1 and passes through the point (-5, 1), we need to determine the slope of the perpendicular line. The given line has a slope of -1/5. Perpendicular lines have slopes that are negative reciprocals of each other. So, the slope of the perpendicular line will be the negative reciprocal of -1/5, which is 5/1 or simply 5. Now, we have the slope (m = 5) and a point (-5, 1) that the perpendicular line passes through.

We can use the point-slope form of a linear equation to find the equation of the line:

y - y1 = m(x - x1)

Substituting the values, we get:

y - 1 = 5(x - (-5))

Simplifying further:

y - 1 = 5(x + 5)

Expanding the brackets:

y - 1 = 5x + 25

Rearranging the equation to the slope-intercept form (y = mx + b):

y = 5x + 26

Therefore, the equation of the perpendicular line that passes through the point (-5, 1) is y = 5x + 26.

Answer: 33.33 megabytes per day

Step-by-step explanation:

From the question, we are informed that in June, Clarissa used 1 gigabytes of data on her cell phone. Since June has 30 days, the amount of data she uses on average per day? will be:

= 1000megabyte/30

= 33.33mb

Note that:

1000 megabytes = 1 gigabyte

The down payment is 400, the monthly payment is 65 and the length of the plan is 7 months. An arithmetic sequence is a sequence of numbers such that the difference between any two consecutive numbers is constant.

Arithmetic refers to the branch of mathematics that deals with numbers and the basic operations of addition, subtraction, multiplication, and division. An arithmetic sequence is a specific type of mathematical pattern where each term is obtained by adding a constant value to the previous term.

Here is the way to determine the monthly payment:

(1,060 - 400) / 7 = (660) / 7 = 65

As you can see the down payment is 400 and the last value in the sequence is 1060, so the total amount of the plan is 1060.

Also, the difference between any two consecutive terms is 110, as we can see that from the sequence:

510 - 400 = 110

620 - 510 = 110

730 - 620 = 110

840 - 730 = 110

950 - 840 = 110

1060 - 950 = 110

So the length of the plan is 7 months as the sequence contains 7 terms.

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(a) Median is 660.15 (b) Mean is 660.07 (c) Standard Deviation is 1.543 (d) Variance is 2.3801.

To calculate the statistics for the given measurements, let's follow the steps:

(a) The median is the middle value when the measurements are arranged in ascending order.

657.9, 658.2, 659.3, 659.6, 659.8, 660.5, 661.7, 662.1, 662.2, 662.4

There are 10 measurements, so the median is the average of the 5th and 6th values:

Median = (659.8 + 660.5) / 2 = 660.15

(b) The mean is the average of all the measurements.

Mean = (658.2 + 659.8 + 661.7 + 662.1 + 659.3 + 660.5 + 657.9 + 662.4 + 659.6 + 662.2) / 10 = 660.07

(c) The standard deviation is a measure of the dispersion of the measurements around the mean.

First, we calculate the deviations of each measurement from the mean:

Deviation = Measurement - Mean

Then, we square each deviation and find the average:

Variance = [(\((Deviation1)^2\) + \((Deviation2)^2\) + ... + \((Deviation10)^2\)) / 10]

Finally, we take the square root of the variance to obtain the standard deviation:

Standard Deviation = \(\sqrt{Variance\)

Let's calculate it step by step:

Deviation1 = 658.2 - 660.07 = -1.87

Deviation2 = 659.8 - 660.07 = -0.27

Deviation3 = 661.7 - 660.07 = 1.63

Deviation4 = 662.1 - 660.07 = 2.03

Deviation5 = 659.3 - 660.07 = -0.77

Deviation6 = 660.5 - 660.07 = 0.43

Deviation7 = 657.9 - 660.07 = -2.17

Deviation8 = 662.4 - 660.07 = 2.33

Deviation9 = 659.6 - 660.07 = -0.47

Deviation10 = 662.2 - 660.07 = 2.13

Variance = [\((-1.87)^2\) + \((-0.27)^2\) + \(1.63^2\) + \(2.03^2\) + \((-0.77)^2\) + \(0.43^2\) + \((-2.17)^2\) + \(2.33^2\) + \((-0.47)^2\) + \(2.13^2\)) / 10] = 2.3801

Standard Deviation = \(\sqrt{2.3801\) = 1.543

(d) The variance is already calculated in step (c) as 2.3801.

Report:

(a) Median: 660.15

(b) Mean: 660.07

(c) Standard Deviation: 1.543

(d) Variance: 2.3801

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Answer:

(0,-2)

(2,-1)

(4,0)

Step-by-step explanation:

The points are the above ones.

x intercept: (4, 0)

y intercept: (0, -2)

Answer:

C

Step-by-step explanation:

Answer:

I think it's 160...

Step-by-step explanation:

1/4 of 1000 is 250

250

- 90

____

160

There is not sufficient evidence to conclude that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased.

To determine if there is sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased, we can use a hypothesis test.

Let p be the true proportion of families who eat dinner together seven nights a week. Our null hypothesis is that there has been no decrease in the proportion of families who eat dinner together seven nights a week:

H0: p = 0.32

Our alternative hypothesis is that the proportion has decreased:

Ha: p < 0.32

We will use a one-tailed z-test with an alpha level of 0.01.

First, we need to calculate the sample proportion, P:

P = 325/1089 ≈ 0.298

Next, we can calculate the test statistic, z0:

z0 = (P - p) / sqrt(p(1-p)/n)

where n is the sample size.

z0 = (0.298 - 0.32) / sqrt(0.32(1-0.32)/1089) ≈ -2.32

Finally, we can compare the test statistic to the critical value for a one-tailed z-test at an alpha level of 0.01. The critical value is -2.33. Since -2.32 is greater than -2.33, we fail to reject the null hypothesis.

Therefore, there is not sufficient evidence to conclude that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased.

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Answer:

Angle 3 is 90 degrees

Angle 2 is 35

Both of them are scuba diver . There position is measured relative to surface of the water. I will use diagram to describe the event

Janes position relative to sheryls position can be expressed as follows

- 10 - (-14) = -10 + 14 = 4 ft

Answer:

O 12,017 cubic millimeters

Step-by-step explanation:

Volume of cylinder = height x cross-section area(in this question, it's a circle) = hpr^2

17ml x (15ml)^2 x p(ill calculate it in calculator, not as 3.14)

= (approximately) 12017ml^3

Answer: no solution

Step-by-step explanation:

Answer:

I hope this helps................

Answer:

3x+15

Multiply the single term 33 by each term of the polynomial (x+5)

3x+15

Answer:

n×m= number of books read

3×13= 39 books

Step-by-step explanation:

Using substitution for the original equation with m and n, you can find the number of books read by plugging in the numbers in place of the variables.

Answer:

bro i cant even read the highlighted numbers

Step-by-step explanation:

take a better photo

Answer:

C

Step-by-step explanation:

between three and four

Answer:

2\(\sqrt{17}\)

Step-by-step explanation:

Use the distance formula to determine the distance between the two points.

Distance = \(\sqrt{(7-(-1))^{2} + (4-2)^{2} }\)

Simplify, and you will get the answer

2\(\sqrt{17}\)