All categories

2 years ago

Will mark brainly!!

Mathematics

1 answer:

Kruka [31]2 years ago

5 0

Is there supposed to be an x before 4x?

You might be interested in

HELP <br> Write an equation that represents the line.<br> Use exact numbers.

horrorfan [7]

Y=7/5+6.8

I believe it can a little more than 6.8 but either way this is correct

3 0

2 years ago

5/8 - 3/4(7 - 1/3) + 1

erastovalidia [21]

-3.375 :))))))))))))))

8 0

3 years ago

Of 560 samples of seafood purchased from various kinds of food stores in different regions of a country and genetically compared

frutty [35]

Answer:

a) (0.5256,0.5944)

c) Criticism is invalid

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 560

Proportion of mislabeled = 56%

$\hat{p} = 0.56$

a) 90% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.64$

Putting the values, we get:

$0.56\pm 1.64(\sqrt{\dfrac{0.56(1-0.56)}{560}}) = 0.56\pm 0.0344\\\\=(0.5256,0.5944)$

b) Interpretation of confidence interval:

We are 90% confident that the true proportion of all seafood in the country that is mislabeled or misidentified is between 0.5256 and 0.5944 that is 52.56% and 59.44%.

c) Validity of criticism

Conditions for validity:

$np > 10\\n(1-p)>10$

Verification:

$560\times 0.56 = 313.6>10\\560(1-0.56) = 246.4>10$

Both the conditions are satisfied. This, the criticism is invalid.

8 0

3 years ago

Identify the number that does not belong with the other three. Explain your reasoning. 50.1 repeating 1, negative 50 over 2, neg

ivolga24 [154]

50.1 repeateding because that is the only positive number

5 0

3 years ago

Read 2 more answers

What is the surface of the triangluar prism shown below

Readme [11.4K]

Answer: 36 ft^2

Step-by-step explanation: 4x3/2=6. 6x2=12. 3x2=6. 4x2=8. 5x2=10. 12+8+6+10=36

5 0

3 years ago