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user100 [1]
2 years ago
8

A research organization wanted to estimate the average number of hours a college student sleeps per night during the school year

. After randomly sampling 150 college​ students, the research organization determined the following​ 95% confidence​ interval: (7.1,7.5)​ hours/night. What is the value of the average number of hours slept per night during the school year for these 150 college​ students?
Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
4 0

Answer:

Step-by-step explanation:

Given given that

  • Lower confidence interval = 7.1
  • Upper confidence interval = 7.5
  • As such, We are 95% confident that it's somewhere between 7.1 and 7.5 hours per night

Average value = LCI + UCI /2 = 7.1 + 7.5 / 2

= 7.3hours per night, so we are 95% confident that it's somewhere between 7.1 and 7.5 hours per night which is eventually 7.3hrs per night.

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Answer:

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What is the solution to the inequality 2 + 4/9x _&gt; 4 + x
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Hope this helps!

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A property valued at $295,000 has a gross rent multiplier of 135. What is this property's monthly income? $2,458,$2,185,$2,525 O
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2 years ago
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∆ABC has vertices at A(12, 8), B(4, 8), and C(4, 14). ∆XYZ has vertices at X(6, 6), Y(4, 12), and Z(10, 14). ∆MNO has vertices a
koban [17]
To get the length of each side,
use the distance formula with equation: 
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<span>AB = 8 units   BC = 6 units AC = 10 units
</span><span>MN =8units    NO = 6 units MO = 10 units
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1 The right answer is the letter b) triangle ABC and Triangle MNO are Congruent <span>triangles
ABC and MNO  are triangles that have the same lengths of its three sides.

</span>2 The answer is the letter c) rotation
There is a rotation of 90º about ABC and MNO the origin is B=N
B=N
C----------O
A----------M
3 0
2 years ago
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