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Elena-2011 [213]
3 years ago
11

PLEASE ANSWER ASAP! I NEED HELP ON IT

Mathematics
1 answer:
IRINA_888 [86]3 years ago
6 0

Answer:

amhere

Step-by-step explanation:

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If the p-value is smaller than the level of significance, what conclusion should we reach?
marshall27 [118]

If the p-value is smaller than the level of significance, then it indicates strong evidence against the null hypothesis, as there is less than a 5% probability the null hypothesis is correct.

In this question,

A p-value is a probability, calculated after running a statistical test on data and it lies between 0 and 1. The p-value only tells you how likely the data you have observed is occurred under the null hypothesis.

One of the most commonly used p-value is 0.05. If the value is greater than 0.05, the null hypothesis is considered to be true. If the calculated p-value turns out to be less than 0.05, the null hypothesis is considered to be false, or nullified (hence the name null hypothesis).

A small p-value (< 0.05 in general) means that the observed results are unusual, assuming that they were due to chance only. Now, the smaller the p-value, the stronger the evidence that should reject the null hypothesis.

Hence we can conclude that if the p-value is smaller than the level of significance, then it indicates strong evidence against the null hypothesis, as there is less than a 5% probability the null hypothesis is correct.

Learn more about p-value here

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7 0
2 years ago
If x to the 2nd power equal 60, What is the value of x
Sedaia [141]

Answer:

7.745

Step-by-step explanation:

Square root of 60 equals X.

5 0
3 years ago
Help I dont know how to write the equation. I know its y=xb or y=x+b <br>​
34kurt

Answer:

<h2>y=x-2</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • linear equation
  • PEMDAS
<h3>given:</h3>
  • b=-2
<h3>let's solve:</h3>

the slope of the line is 1

and linear equation slope intercept form:

  • y=mx+b

therefore our equation is

  • y=x+(-2)
  • y=x-2
8 0
3 years ago
Read 2 more answers
Brass is made from a mixture of copper and other elements. a mixture that is 80% copper is combined with a mixture that is 60% c
algol [13]

The equation that can be used to find x, the amount of the 60% mixture used to create the 65% mixture is:

0.60*x + 0.80*(100 - x) = 0.65*(100).    

<h3>Which equation we should use?</h3>

First, let's define two variables:

  • x = pounds of the 60% copper brass.
  • y = pounds of the 80% copper brass.

We know that we want to make 100 lb of 65% copper brass, then we must have that:

x + y = 100

And the percentage of copper before and after mixing must be the same, so we can write:

0.60*x + 0.80*y = 0.65*(x + y).

(where the percentages are written in decimal form).

Then we have a system of equations:

x + y = 100

0.60*x + 0.80*y = 0.65*(x + y).

To get a single equation, we can isolate the variable "y" on the first equation:

y = 100 - x

Now we replace that in the other equation:

0.60*x + 0.80*(100 - x) = 0.65*(100).      

This is what we wanted to get, an equation that can be used to find x, the amount of the 60% mixture used to create the 65% mixture.

If you want to learn more about systems of equations:

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4 0
2 years ago
Given the perimeter of a square find the length of one side using the appropriate formula
Lady bird [3.3K]
With a square, all you need to do to find the length of one side is to divide the perimeter by 4. If it is the area you are calculating, then you need to find the square root. For that equation the answer is 24.
8 0
3 years ago
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