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Natasha2012 [34]
3 years ago
14

Find the value za/2 needed to constrict a confident interval with level 87%

Mathematics
1 answer:
Vikki [24]3 years ago
5 0

Answer:

The value za/2 needed to constrict a confident interval with level 87% is 1.51

Step-by-step explanation:

At 87% confidence level the z is ,  

α= 1 - 87%

  = 1 - 0.87

   = 0.13

α/ 2 = 0.13 / 2

        = 0.065

Zα/2 = Z0.065

        = 1.51 ( Using z table )

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{4, -6,1/2, 0,pi, 7/9}
attashe74 [19]

Answer:

answer is the 2nd one

Step-by-step explanation:

y = 1/3(3) - 1 = 1 - 1 = 0   (3,0)

y = 1/3(0) - 1 = 0 - 1 = -1   (0, -1)

y= 1/3(6) - 1 = 2 - 1 = 1     (6, 1

7 0
3 years ago
A crate containing 16 bags of powdered milk weighs of 63.2 lbs. The weight of the empty crate is 2.4 lbs. Select all equations t
Scorpion4ik [409]

Answer:

2, 3 , 4

Step-by-step explanation:

A crate containing 16 bags of powdered milk weighs of 63.2 lbs.

The weight of the empty crate is 2.4 lbs

The weight of the milk by itself is the difference of full and empty crate 63.2 - 2.4 = 60.8

To find  the weight of one bag of powdered milk divide 60.8 by 16 = 3.8 lb

5 0
3 years ago
Graph the six terms of a finite sequence where a1 = −6.25 and r = 1.25.
Virty [35]

Answer:

Step-by-step explanation:

As per the question statement, a₁ is -6.25 and common ratio (r) is 1.25.

Therefore, the six terms of finite sequence would be as per the following equation f(n) = a1(r)^{n-1}. Thus, the series would be

  1. a1 = -6.25
  2. a2 = -6.25*r = -6.25*(1.25) = -7.8125
  3. a3 = -6.25*r^2 = -6.25*(1.25)^2 = -9.765625
  4. a4 = -6.25*r^3 = -6.25*(1.25)^3 = -12.20703125
  5. a5 = -6.25*r^4 = -6.25*(1.25)^4 = -15.2587890625
  6. a6 = -6.25*r^5 = -6.25*(1.25)^5 = -19.073486328125

So the points on the graph will be on following points,

(1, -6.25), (2, -7.8125), (3, -9.765625), (4, -12.20703125), (5, -15.2587890625), (6, -19.073486328125).

The graph would look like as attached.

3 0
3 years ago
Can someone help me please!
adell [148]
I think it is y=4x because y is directly proportional to x
6 0
3 years ago
A weather reporter in your area said that the speed of sound in air today is about one thousand one hundred feet per second. Wha
8_murik_8 [283]
Okay so, the answer will be 1.1x10^3.
6 0
4 years ago
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