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QveST [7]
3 years ago
13

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp

orts. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow. 7 7 3 8 4 4 4 5 5 5 5 4 9 10 9 9 8 10 4 5 4 10 10 10 11 4 9 7 5 4 4 5 5 4 3 10 10 4 4 8 7 7 4 9 5 9 4 4 4 4
Develop a 95% confidence interval estimate of the population mean rating for Miami.Enter your answer using parentheses and a comma, in the form (n1, n2).
Mathematics
1 answer:
marishachu [46]3 years ago
7 0

Answer:

(5.2591, 9.3531)

Step-by-step explanation:

given that the International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports.

Ratings are from 1 to 10

the readings are

7 7 3 8 4 4 4 5 5 5 5 4 9 10 9 9 8 10 4 5 4 10 10 10 11 4 9 7 5 4 4 5 5 4 3 10 10 4 4 8 7 7 4 9 5 9 4 4 4 4

Mean = 7.3061

Std deviatin = 7.3100

Std error = \frac{7.310}{\sqrt{49} } \\=1.0443

95%,confidence interval =  7.3061 ±2.047 \\=(5.2591, 9.3531)

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UNO [17]

Answer:

G=32 B=55

Step-by-step explanation:

55+32=87

I know this answer is right bc I got it right on my ws.

3 0
3 years ago
What is the value of 2-2x-3y5 for x = 2 and y = -4?
a_sh-v [17]
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6 0
3 years ago
Find the value of X. Show work!!!
barxatty [35]

Answer:

x = -10

Angle 2 = 49°

Angle 3 = 49°

Step-by-step explanation:

In the given figure, it's an isosceles triangle

so, angle 2 = angle 3

( since their opposite sides are equal )

now,

in the given triangle,

=》Angle 2 + Angle 3 + 82° = 180°

( sum of all interior angles of the triangle = 180° )

=》Angle 2 + Angle 3 = 180° - 82

=》Angle 2 + Angle 3 = 98°

=》2 × Angle 2 = 98°

( since, angle 2 = angle 3 )

=》Angle 2 = 98° / 2

=》Angle 2 = 49°

so, Angle 2 = 49° = Angle 3

now,

Angle 2 = x + 59

=》49 = x + 59

=》x = 49 - 59

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6 0
2 years ago
Sum of 2 numbers is 42, and their difference is 8. What are the numbers?​
Tems11 [23]

Answer:

25 , 17

Step-by-step explanation:

Let the unknown two numbers be x & y.

According to the question,

Sum of 2 numbers is 42.

x + y = 42  ⇒ ( 1 )

Their difference is 8.

x - y = 8 ⇒ ( 2 )

First let us find the value of x.

( 1 ) + ( 2 )

x + y + x - y = 42 + 8

2x = 50

Divide both sides by 2.

x = 25

And now let us find the value of y.

x + y = 42

25 + y = 42

y = 42 - 25

y = 17

Therefore, the two numbers are 25 , 17

Hope this helps you :-)

Let me know if you have any other questions :-)

8 0
2 years ago
Read 2 more answers
I need help with the answers
vlada-n [284]

Answer:

i dont get it

Step-by-step explanation:

4 0
3 years ago
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