Will mark brainliest if correct

The specific null and alternative hypotheses for a hypothesis test will depend on the research question being investigated and the type of data being analyzed.

What is the equivalent expression?

Equivalent expressions are expressions that perform the same function despite their appearance. If two algebraic expressions are equivalent, they have the same value when we use the same variable value.

For a two-tailed hypothesis test, an appropriate null hypothesis indicating that the population correlation is equal to zero would be:

H₀: ρ = 0

where ρ represents the population correlation coefficient.

This null hypothesis states that there is no significant correlation between the two variables being analyzed.

In a two-tailed hypothesis test, the alternative hypothesis would be that there is a significant correlation, either positive or negative, between the two variables:

Hₐ: ρ ≠ 0

This alternative hypothesis states that there is a significant correlation between the two variables, but does not specify the direction of the correlation.

It's important to note that the specific null and alternative hypotheses for a hypothesis test will depend on the research question being investigated and the type of data being analyzed.

Additionally, the choice of null and alternative hypotheses will affect the statistical power of the test, which is the probability of correctly rejecting the null hypothesis when it is false.

Hence, the specific null and alternative hypotheses for a hypothesis test will depend on the research question being investigated and the type of data being analyzed.

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Complete Question:

For a two-tailed hypothesis test, which of the following would be an appropriate null hypothesis indicating that the population correlation is equal to o?

A. H₀: 1 = 2, B. H₀ : M₁ = M₂ C. H₀: O = 0  

D. None of the options above are correct.

Given the assumptions set above, the number of participants that will join the network on each side is as follows: two influencers and 17 patients.

Explanation :From the given data, the time cost of joining the network is $20 and $5 for influencers and patients, respectively. Influencers (side 1) are content contributors, their willingness-to-pay function (u') of joining the network is:• If n2 = 0, u' = 0. If n2 > 0, u' = 2*n/n. Patients (side 2), who seek help, have the following willingness-to-pay function (u"):If n = 0, up = 0. If n = 1: u' =10, for n2<=10.• uP =10/(0.1*n2), for n2>10.If n = 2: u' =10, for nz<=20.• u' =10/(0.05*n2), for n2>20.By putting n = 0 in u" equation, we get u" = 0 as there are no patients initially. By putting n = 1 in u" equation, we get u" = 10 as n2 = 0.

Since n2 = 0, putting n = 2 in u" equation, we get u" = 10 as well. Therefore, both the influencers will join as they both have u' > 20 and the maximum number of patients who can join the network are 17. This is because when n = 1, u" = 10 and n2 <= 10. For n = 2, the maximum number of patients who can join the network is 17 as per the equation u" = 10/(0.1*n2). Putting n2 = 17 in the equation, we get u" = 5.88 which is less than their time cost of joining the network.

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Answer:

4/10

Step-by-step explanation:

4/10 = 0.4 = 0.40

2/6 = 0.33

so, 0.40 is greater than 0.33

Answer:

$2250

Step-by-step explanation:

if the cost of the washing machine is 70% of the cost she paid. then the cost of the dryer must be:

100-70 =30%

Now, to find the cost of the dryer, you just have to find 30%of 7500

30/100x 7500 = 2250

Thus, the dryer costs $2250.

Hope this helps.

Good luck

Answer:

82 inches squared

Step-by-step explanation:

7*3*2 = 42

7*2*2 = 28

3*2*2 = 12

42 + 28 + 12 = 82

Answer:

y=7x-6

Step-by-step explanation:

You would first pick two coordinates in this case would be ( 0, -6), (1,1). You would find your slope by using the formula y2-y1/x2-x1. Which would give you a slope of 7/1 which is equal to 7. Then you would use point slope formula which is y-y1=m(x-x1). would would plug in the numbers and it would say

y-(-6)=7(x-0). Then you would simplify the y-(-6) which would be y+6 then you would distribute the 7. Your whole equation would look like y+6=7x+0. Then you would use inverse operations and subtract -6 from the left side of the equals and subtract it from 0 giving you -6. Therefore your whole equation would be y=7x-6. Hoped this helped.

In interval notation, the domain is (1, ∞).

The Riemann zeta function for real numbers is defined as ζ(x) = ∑n=1 to ∞ (n^-x) for all x for which the series converges.

To find the domain of the function, we need to determine for which values of x the series converges.

Using the p-series test, we know that the series ∑n=1 to ∞ (n^-x) converges if x > 1. Therefore, the domain of the Riemann zeta function is x > 1.

In interval notation, the domain is (1, ∞).

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Answer:

Your answer is A 15. Explanation: 2 times 15 = 30. 30-4=26.

The correct inequality is the one in option C.

x ≥ 85

Here we know that:

Julie's Snow Cone Shack sells at least 85 snow cones every Saturday.

So she can sell 85 cones or any number larger than 85.

We want to write an inequality that represents this, using x as the x, we can write:

x ≥ 85

That says that x can be equal to or larger than 85.

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Answer:

9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

M A T H W A Y

Answer:

assuming that the equations are equal to zero the answers would be

3   ,   -3    ,  5

Step-by-step explanation:

Answer:

9 is the constan trate of change.

Step-by-step explanation:

Assuming two points of the graph with the form as P=(x,y) you can find the constant rate m using the slope formula.  

m=(y2-y1)/(x2-x1)

Lets say that P1=(0,0) and P2=(1,9), then:  

m= (9 – 0)/(1-0)

m=9

Therefore, the point (0,0) means that when you are not buying any t-shirt then you dont have any waste of money. The point (1,9) means that when you are buying one t-shirt then you have to pay 9 then its result that cost of each t-shirt is 9 so when you are buying two t-shirt then you  have to pay 18, when you are buying three you have to pay 27 likewise.

Answer:

There's nothing there

Step-by-step explanation:

Christo and Jeanne-Claude worked for over 26 years on "The Gates," a large-scale public art installation in Central Park consisting of thousands of saffron-colored fabric panels along 23 miles of walkways, which was on display for 16 days in February 2005.

Christo and Jeanne-Claude were artists known for their large-scale public art installations. "The Gates" was a project they worked on for over 26 years, from its conception in 1979 to its installation in Central Park in February 2005. The installation involved placing thousands of saffron-colored fabric panels along 23 miles of walkways in the park, creating a visually stunning and immersive experience for visitors.

The project was met with both praise and criticism, but it ultimately succeeded in bringing people together to appreciate art in a public space. The installation remained in place for 16 days before it was dismantled.

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Answer:

21

Step-by-step explanation:

21/3 = 7

To find the arc length, we can use the formula:

\(\[ L = \frac{\theta}{360} \times 2\pi r \]\\Given:\( r = \frac{d}{2} = \frac{30}{2} = 15 \) ft\( \theta = 42 \) degrees\( \pi = 3.14 \)\\Substituting the given values into the formula:\[ L = \frac{42}{360} \times 2 \times 3.14 \times 15 \]\[ L = \frac{42}{360} \times 94.2 \]\[ L = \frac{3956.4}{360} \]\[ L \approx 10.99 \] ftTherefore, the arc length traveled by the car, to the nearest hundredth, is 10.99 feet. The correct option is c.\)

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A function that converts an input of letters and numbers into an encrypted output of a fixed length is called hash. The links in the blockchain that is created using an algorithm.

A hash is a mathematical function that changes an input of any length into an encrypted output of a specific length. Therefore regardless of the quantity of raw data involved or the size of the file, its unique hash is always the same size. Also, a hash cannot be used to "reverse engineer" an input from a hash output, because hash functions are "one-way" (like a meat grinder; you don't can't put ground beef back into a steak). However, if you use such a function on the same data, its hash will be the same, so you can confirm that the data is the same (i.e., unchanged) if you already know its hash.

Hashes are used in various parts of the blockchain system. Each block header contains the hash of the previous block, ensuring nothing has been tampered with as new blocks are added. Cryptocurrency blockchains use hashes to secure information and make the ledger immutable.

It refers to the technique of making an input element of arbitrary length reflect an output element of definite length. For blockchain applications in cryptocurrencies, variable duration transactions are processed by specific hashing algorithms and all produce fixed length outputs. This is true regardless of the duration of the input transaction.

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Complete Question:

Fill in the blanks,

A function that converts an input of letters and numbers into an encrypted output of a fixed length is called ________. The links in the blockchain that is created using an algorithm.

The probability that materials to the construction site will not be delivered on schedule is 0.435. And the probability that it will be caused by train transportation is 0.3448 (rounded to four decimal places).

Given: 73% of the materials are transported by trucks and the remaining 27% by trains.

The probability of on-time delivery by trucks is 0.70, whereas the corresponding probability by trains is 0.85.

To find: The probability that materials to the construction site will not be delivered on schedule.

Solution: Let A be the event that materials are transported by truck and B be the event that materials are transported by train. Since 73% of the materials are transported by trucks, then P(A) = 0.73 and since 27% of the materials are transported by trains, then P(B) = 0.27

Also, the probability of on-time delivery by trucks is 0.70, then

P(On time delivery by trucks) = 0.70

And the probability of on-time delivery by trains is 0.85, then P(On time delivery by trains) = 0.85

The probability that materials to the construction site will not be delivered on schedule

P(Delayed delivery) = P(not on time delivery)

P(Delayed delivery by trucks) = P(not on time delivery by trucks) = 1 - P(on time delivery by trucks) = 1 - 0.70 = 0.30

P(Delayed delivery by trains) = P(not on time delivery by trains) = 1 - P(on time delivery by trains) = 1 - 0.85 = 0.15

The probability that materials to the construction site will not be delivered on schedule

P(Delayed delivery) = P(Delayed delivery by trucks) ⋃ P(Delayed delivery by trains) = P(Delayed delivery by trucks) + P(Delayed delivery by trains) - P(Delayed delivery by trucks) ⋂ P(Delayed delivery by trains)P(Delayed delivery) = (0.3) + (0.15) - (0.3) x (0.15)

P(Delayed delivery) = 0.435

Venn diagram: Probability that it will be caused by train transportation = P(Delayed delivery by trains) / P(Delayed delivery)

Probability that it will be caused by train transportation = 0.15 / 0.435

Probability that it will be caused by train transportation = 0.3448 (rounded to four decimal places)

Therefore, the probability that materials to the construction site will not be delivered on schedule is 0.435. And the probability that it will be caused by train transportation is 0.3448 (rounded to four decimal places).

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Answer:

hi

Step-by-step explanation:

first of all,we should do this:

1 year is 12 month

amd 4 year is 48 month(12×4)

then we must add 2 months (wich is given) to 48

He was 50 months old when he started school

and we should find how old is he now

11 ×12=132months

132+1=133months

133-50=83 ( he has been 83 months in school)

let's turn it to years 6 years 11 months

( for finding years you should divide 83 to 12)

hope it helps

The population proportion who participated in voting (63%) is higher than the sample proportion from this survey (58.91%).

To determine whether the population proportion who participated in voting or the sample proportion from the survey is higher, we need to compare the percentages.

The population proportion who participated in voting is given as 63% of all registered voters.

This means that out of every 100 registered voters, 63 participated in voting.

In the survey of retired voters, 162 out of 275 participants voted. To calculate the sample proportion, we divide the number of retired voters who participated (162) by the total number of retired voters in the sample (275) and multiply by 100 to get a percentage.

Sample proportion = (162 / 275) \(\times\) 100 ≈ 58.91%, .

Comparing the population proportion (63%) with the sample proportion (58.91%), we can see that the population proportion who participated in voting (63%) is higher than the sample proportion from this survey (58.91%).

Therefore, based on the given data, the population proportion who participated in voting is higher than the sample proportion from this survey.

It's important to note that the sample proportion is an estimate based on the surveyed retired voters and may not perfectly represent the entire population of registered voters.

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The quotient A/B is equal to 42 + 84j, which corresponds to option b: 4 + j7.45.

To find the quotient A/B, we can perform complex division. Let's proceed with the calculation:

A/B = (68 + j16) / (2 - j4)

To simplify the expression, we can multiply the numerator and denominator by the conjugate of the denominator:

A/B = ((68 + j16) * (2 + j4)) / ((2 - j4) * (2 + j4))

Expanding the numerator and denominator:

A/B = ((68 * 2) + (68 * j4) + (j16 * 2) + (j16 * j4)) / ((2 * 2) + (2 * j4) - (j4 * 2) - (j4 * j4))

= (136 + j272 + j32 + j64) / (4 + j8 - j8 - j16)

= (136 + j272 + j32 + j64) / 4

Simplifying further:

A/B = (136 + j272 + j32 + j64) / 4

= (136 + j272 + j32 + j64) / 4

= (136 + 32) / 4 + (272 + 64) / 4j

= 168 / 4 + 336 / 4j

= 42 + 84j

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The student that has   the highest probability to find that the actual number of times his or her coin lands heads up most closely matches the predicted numberof heads-up landings is Collin.

Let's calculate the expected number of heads-up landings for each student  -

Ana = 0.5 * 50 = 25

Brady  = 0.5 * 10 = 5

Collin = 0.5 * 80 = 40

Deshawn  = 0.5 * 20 = 10

From the above we can   see that Collin (80 flips) is most likely to find that the actual number of times his coin lands heads up most closely matchesthe predicted   number of heads-up landings (40).

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Full Question:

Although part of your question is missing, you might be referring to this full question:

Four students are determining the probability of flipping a coin and it landing head's up. Each flips a coin the number of times shown in the table below.

Student

Number of Flips

Ana

50

Brady

10

Collin

80

Deshawn

20

Which student is most likely to find that the actual number of times his or her coin lands heads up most closely matches the predicted number of heads-up landings?

Answer:

Step-by-step explanation:

Equations and inequalities are both mathematical sentences formed by relating two expressions to each other. In an equation, the two expressions are deemed equal which is shown by the symbol =. ... An equation or an inequality that contains at least one variable is called an open sentence.

An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value. a ≠ b says that a is not equal to b. a < b says that a is less than b. a > b says that a is greater than b. (those two are known as strict inequality)

The two most generic and widely used valuation multiples in finance and investment analysis are the price-to-earnings (P/E) ratio and the enterprise value-to-earnings before interest, taxes, depreciation, and amortization (EV/EBITDA) multiple.

1. Price-to-Earnings (P/E) Ratio: The P/E ratio is calculated by dividing the market price per share of a company's stock by its earnings per share (EPS). It provides a measure of how much investors are willing to pay for each dollar of earnings generated by the company.

A high P/E ratio suggests that investors have high expectations for future growth and are willing to pay a premium for the stock. On the other hand, a low P/E ratio may indicate that the stock is undervalued or that investors have low expectations for future growth.

2. Enterprise Value-to-EBITDA (EV/EBITDA) Multiple: The EV/EBITDA multiple is calculated by dividing the enterprise value (EV) of a company by its earnings before interest, taxes, depreciation, and amortization (EBITDA).

The EV is the total market value of a company's equity and debt, minus its cash and cash equivalents. EBITDA represents the company's operating earnings before accounting for interest, taxes, depreciation, and amortization.

The EV/EBITDA multiple is commonly used in evaluating the valuation of companies, especially in the context of mergers and acquisitions. It provides a measure of a company's overall value relative to its earnings, without being affected by capital structure or tax considerations.

Both the P/E ratio and EV/EBITDA multiple are widely used because they are relatively easy to calculate and understand. However, it's important to note that these multiples have limitations and should be used in conjunction with other valuation methods and qualitative analysis to make informed investment decisions.

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The rewritten expression using the summation notation is ∑ k = 1 1! + 2! + 3! + ... + (n+1)!

The summation notation is a way to represent the sum of a series of terms. In the summation notation, the series of terms is represented by an expression that is followed by a summation symbol (∑). The summation symbol is usually followed by an index of the summation (k in this case), an equal sign (=), the starting value of the index, and a colon (:). The series of terms is then written below the summation symbol, with the index replacing the variable in each term.

To rewrite the given expression using the summation notation, we can use the following steps:

Identify the series of terms: 1 + 2 + 3 + ... + n.

Write the series of terms below the summation symbol: ∑ k = 1

Replace the variable in each term with the index: 1! + 2! + 3! + ... + (n+1)!

The rewritten expression using the summation notation is ∑ k = 1 1! + 2! + 3! + ... + (n+1)!

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Answer:

the correct answer is B. hope this helped