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aleksley [76]
3 years ago
13

What are the critical values for a two-tailed test with a 0.01 level of significance when n is large and the population standard

deviation is known?
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0
For a two-tailed test we need to halve 0.01, giving 0.005. Then we need to sutract 0.005 from 0.5, giving 0.5 - 0.005 = 0.495. Looking up the p value of 0.495 in an inverse normal probability table we obtain the value z = 2.5758. Therefore the critical values are -2.5758 and 2.5758.
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How do you find the hypotenuse if you have 2 side lengths one is 40 m and the other is 5 cm ?
Svet_ta [14]

Answer:

40.3 m

Step-by-step explanation:

a²+b²=c²

40²+5²=c²

1600+25= 1625

√1625 = 40.3112

8 0
3 years ago
Rachel rounded 16,473 to the nearest hundred then she rounded it to the nearest thousand what is the final number
castortr0y [4]

17,000 is the answer


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You have 2 5/8 pizzas to share with three friends, how much pizza will each friend get?
Mazyrski [523]
2 5/8 divided by 3

(2*8)+5/8 divided by 3

16+5/8 divided by 3

(3*7/2^3)(1/3)

3*7/2^3*3

7/2^3

7/8

each friend would get 7/8 
5 0
3 years ago
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The perimeter of a rectangular field is 26 yards. The length is 4 more yards than twice the width. Find the length and width of
solong [7]

The formula for perimeter is P = 2length + 2width (P = 2L + 2W)

You know that the length is 4 more yards then twice the width. In equation form this would be:

length = 4 + 2w

Plug what you know into the perimeter formula:

26 = 2(4 + 2w) + 2w

First you must distribute the 2 to the numbers inside the parentheses, which would be 4 and 2w...

26 = (2 * 4) + (2 * 2w) + 2w

26 = 8 + 4w + 2w

Now you must combine like terms. This means that first numbers with  the same variables (w) must be combined...

26 = 8 + 4w + 2w

4w + 2w = 6w

26 = 8 + 6w

Now bring 8 to the left side by subtracting 8 to both sides (what you do on one side you must do to the other). Since 8 is being added on the right side, subtraction (the opposite of addition) will cancel it out (make it zero) from the right side and bring it over to the left side.

26 - 8 = 8 - 8 + 6w

18 = 0 + 6w

18 = 6w

To isolate w divide 6 to both sides

18 / 6 = 6w / 6

w = 3

We know that the width is 3 ft

Now you must find the length. To do this plug 3 where you see w in the equation:

length = 4 + 2w

l = 4 + 2(3)

l = 4 + 6

l = 10

We know that length is 10 ft

Letter B. is the correct answer

Hope this helped!

~Just a girl in love with Shawn Mendes

4 0
3 years ago
Identify which functions have complex roots by selecting the function names on the provided coordinate plane,
nordsb [41]

Answer: d and b i think

Step-by-step explanation:

6 0
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