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Alla [95]
3 years ago
5

An alien empire is considering taking over planet Earth, but they will only do so if the portion of rebellious humans is less th

an 10%. They abducted a random sample of 400 humans, performed special psychological tests, and found that 14% of the sample are rebellious Let's test the hypothesis that the actual percentage of rebellious humans is 10% versus the alternative that the actual percentage is higher than that The table below sums up the results of 1000 simulations, each simulating a sample of 400 humans, assuming there are 10% rebellious humans. According to the simulations, what is the probability of getting a sample with 14% rebellious humans or more?
1.5%
2%
0.3%
0.7%

Let's agree that if the observed outcome has a probability less than 1% under the tested hypothesis, we will reject the hypothesis.

We cannot reject the hypothesis
We should reject the hypothesis​
Mathematics
1 answer:
8090 [49]3 years ago
6 0

Step-by-step explanation:

How was the government able to make children go to residential school?

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What is the area of a parallelogram if is length is x+1 and height is x+8?
Irina-Kira [14]

Answer:

8 square units

Step-by-step explanation:

x + 1 = 0

x = -1

x + 8 = 0

x = -8

Area = (-1) * (-8) = 8 square units

3 0
3 years ago
Find the slope of the line that passes through (6, 7) and (2, 10). and simplify if needed thx guys.
tekilochka [14]

Answer:

-\frac{3}{4}

Step-by-step explanation:

the equation for finding the slope of a line when given two points is \frac{y_2-y_1}{x_2-x_1}, aka the change in y over the change in x.

pick one of your coordinate pairs to be y_2\\ and x_2. it doesn't matter which coordinate pair you choose as long as you keep them as y_2\\ and x_2. the remaining coordinate pair will be y_1 and x_1.

for this example, i'll use (2, 10) for y_2\\ and x_2 and (6, 7) for y_1 and x_1.

<em>**before i begin, i just want to note that you can do these next four steps in any order that you want. i personally prefer to plug in my y-values first and then my x-values, but you can choose to instead plug in the values of each coordinate pair (like starting by plugging in the coordinate pair (2, 10) with 10 for </em>y_2\\ and 2 for x_2<em>). it's up to you. i'm going to explain the steps by plugging in my y-values first and then my x-values because that's the way i normally do it.</em>

<em />

first, start by plugging in the y-value from the coordinate pair of your choosing in for y_2\\. since i chose (2, 10) for y_2\\ and x_2, i'll plug in 10 for y_2\\.

\frac{y_2-y_1}{x_2-x_1} ⇒ \frac{10-y_1}{x_2-x_1}

then plug in the remaining coordinate pair's y-value in for y_1. since the coordinate pair that's left is (6, 7), i will plug in 7 for y_1.

\frac{y_2-y_1}{x_2-x_1} ⇒ \frac{10-7}{x_2-x_1}

now i'm going to plug in the x-values. i chose (2, 10) to plug in for y_2\\ and x_2, so now i'll plug in 2 for x_2.

\frac{y_2-y_1}{x_2-x_1} ⇒ \frac{10-7}{2-x_1}

and all that's left to plug in is the x-value from (6, 7), so i will plug that in for x_1.

\frac{y_2-y_1}{x_2-x_1} ⇒ \frac{10-7}{2-6}

after plugging in all the values, you have \frac{10-7}{2-6}.

subtract 10 - 7 as well as 2 - 6.

\frac{10-7}{2-6} ⇒ \frac{3}{-4}

\frac{3}{-4} cannot be simplified, therefore the slope of the line is \frac{3}{-4} or -\frac{3}{4}.

i hope this helps! have a lovely day <3

7 0
2 years ago
To estimate the height of a house Katie stood a certain distance from the house and determined that the angle of elevation to th
gizmo_the_mogwai [7]
28492 degrees is the answer
5 0
3 years ago
4 - (-18) = 4 - (-18) =
VashaNatasha [74]

Answer: 22

Step-by-step explanation:

4 - (-18) = 4 + (+ 18) = 22

8 0
3 years ago
Dylan is saving money to buy a new bike that costs $195. He has $25 already saved and plans to save $40 each week. Which equatio
lakkis [162]

Answer:

25+40x=195

Step-by-step explanation:

If he already has $25, you need to add that to 40x (40 times the amount of weeks it takes to get to 195, added with 25).

6 0
3 years ago
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