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natima [27]
3 years ago
7

Write the equation for the following graph:

Mathematics
1 answer:
sesenic [268]3 years ago
7 0

Answer:

-2x-1

Step-by-step explanation:

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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
Kathy takes her cat to a veterinarian every year for a check-up. Last year, the difference in the cat's weight from teh year bef
Nataliya [291]
To find the difference in weights from two years ago, you will need to combine the 2 differences from the two years.  

-1.56 and 0.73 becomes -1.56 + 0.73.

To add a positive and a negative number you will subtract the absolute values of the numbers AND use the sign of the number with the bigger absolute value (negative) in your answer.

|-1.56| - |0.73|
1.56 - 0.73 = 0.83
-0.83

The cat lost 0.83 (-0.83) pounds over 2 years.
3 0
3 years ago
The perimeter of 2ft squared
Brums [2.3K]

Answer:

the peremiter will be 2 x one factor +2 the other factor. lets say the area of the rectangle is square feet. then the rectangle could be 8x12; so the perimeter would be 2x8+2×12 or 40 but the rectangle could also be 6 x 16 the peremiter would be 44

4 0
3 years ago
There are 200 employees 50 of them dont have health insuran200 what percentage doesnt have health insurance
marusya05 [52]
The answer is 25. you can find the answer by setting up a proportion. 
4 0
3 years ago
Read 2 more answers
What is 9.3, 5 3 5, 9.90, 9 8 11, 2.78, 3.9, and 5 1 6 from least to greatest?
OleMash [197]

Answer:

2.98,3.9,9.3,9.90,516,535,9811

Step-by-step explanation:

5 0
3 years ago
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