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Margarita [4]
1 year ago
7

Find a 99% confidence interval for the previous problem.A) ($99,271.44, $100,728.56)B) ($99,242.00, $100,758.01)C) ($99.996.46,

$100,003.55)D) The salaries are not normally distributed so we cannot compute a confidence interval

Mathematics
1 answer:
Mamont248 [21]1 year ago
8 0

95% confidence interval is given by

x - 2D , and x+ 2D

For 99% confidence interval is

x - 3D , and x + 3D

x = 100000

D = 2000

Then calculate

100000 - 3•2000= 94000

and

100000 + 3•2000= 106000

Now find √D = 44.72

Then interval is

100000 - 44.72 ,. And. 100000 + 44.72

99,956 lower limit and. 100472 upper limit

Then we see that theres only one interval ,

that is between thes 2 limits

ANSWER Is OPTION C) ) ($99.996.46, $100,003.55)

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Find all missing angles<br> I need help please
aksik [14]

Answer:

1) 34º

2) 52º

3) 56º

4) 94º

Step-by-step explanation:

let 3 be x

let 1 be y

let 2 be z

let 4 be j

180=86+38+x              56=x

90=56+y                     34=y

180=86+j                     94=j

180=34+z+94              52=z

4 0
2 years ago
20 points!
meriva

All circles are similar because all circle have same shape.

However Two circles are congruent , if and only if their radii are congruent.

In our question we are asked when are all circles similar given if their radii are congruent.

So we can say this statement is false because no matter the radii are congruent or not  , two or more circles are always similar because of their same shape no matter what the measure of their radii is. Only if we are asked when they are congruent, we will consider the radii part.

Answer is false.

4 0
4 years ago
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Katen [24]
The slope should be one over two.
6 0
3 years ago
In a different plan for area​ codes, the first digit could be any number from 4 through 8​, the second digit was either 3, 4, 5,
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For the first digit, we have 5 options that are 4,5,6,7,8 . For the second digit, we have 4 options which are 3,4,5 or 6 and for the third digit, we have the options of all numbers except 2 or 5 that is 1,3,4,6,7,8,9,0 . SO we have 8 options for third digit . So to find the total number of options, we need to multiply all the possible options for each digit that is 5 times 4 times 8 = 160 . So the number of possible options are 160 .

7 0
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7 0
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