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Ierofanga [76]
3 years ago
13

EQUATION

Mathematics
1 answer:
nalin [4]3 years ago
4 0

Answer:

2(-1*x)-1=2(-1*x)-1+2(-1)

Step-by-step explanation:

-2+2x-1=-2+2x-1+-2

-3+2x=-3+2x-2

-3+2x=-5+2x

2x=-8+2x

0=-8

I probably messed up somewhere

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Trials in an experiment with a polygraph include results that include cases of wrong results and cases of correct results. Use a
hram777 [196]

Answer and Step-by-step explanation:

This is a complete question

Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80​% of the time. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

The computation is shown below:

The null and alternative hypothesis is

H_0 : p = 0.80

Ha : p < 0.80

\hat p = \frac{x}{ n} \\\\= \frac{74}{97}

= 0.7629

Now Test statistic = z

= \hat p - P0 / [\sqrtP0 \times (1 - P0 ) / n]

= 0.7629 - 0.80 / [\sqrt(0.80 \times 0.20) / 97]

= -0.91

Now

P-value = 0.1804

\alpha = 0.01

P-value > \alpha

So, it is Fail to reject the null hypothesis.

There is ample evidence to demonstrate that less than 80 percent of the time reports that these polygraph findings are accurate.

5 0
3 years ago
Help plz..And No links!! I repeat No links!!
patriot [66]

This is Right answer....

I hope you understand...

Mark me as brainliest....

Thanks

6 0
2 years ago
Read 2 more answers
Which graph has slope of 2
Vlad [161]

Answer:

D

Step-by-step explanation:

It would be D because the formula to find slope is y divide by x. Graph D has a y of 2 and a x of 1 which you divide to get 2 which would be your answer

6 0
2 years ago
Read 2 more answers
Please help!!!
marusya05 [52]

Answer:

the answer is B.FALSE

Step-by-step explanation:

hope it helps

5 0
2 years ago
The diameter of an insect cell is 1.7 × 10–11 meter. Ariel wants to find the length of the radius of the cell. If she performs t
Juli2301 [7.4K]

Answer:

8.5E-12

Step-by-step explanation:

According to the Question,

Given That, The diameter of an insect cell is 1.7 × 10^-11 meters.

Ariel wants to find the length of the radius of the cell. Radius Is Half of the Diameter.

  • Thus, R = D/2   ⇒  (1.7*10^-11)/2 = 0.85× 10^-11
  • If she performs the calculations on her calculator is 8.5E-12.
6 0
2 years ago
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