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ruslelena [56]
3 years ago
9

Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. These data are contained in the

file named Houston. Based upon past studies the population standard deviation is known with = $9. Click on the datafile logo to reference the data. a. At 99% confidence, what is the margin of error? b. Develop a 99% confidence interval estimate of the mean amount spent for lunch.
Amount
20.50
14.63
23.77
29.96
29.49
32.70
9.20
20.89
28.87
15.78
18.16
12.16
11.22
16.43
17.66
9.59
18.89
19.88
23.11
20.11
20.34
20.08
30.36
21.79
21.18
19.22
34.13
27.49
36.55
18.37
32.27
12.63
25.53
27.71
33.81
21.79
19.16
26.35
20.01
26.85
13.63
17.22
13.17
20.12
22.11
22.47
20.36
35.47
11.85
17.88
6.83
30.99
14.62
18.38
26.85
25.10
27.55
25.87
14.37
15.61
26.46
24.24
16.66
20.85
Mathematics
1 answer:
Ratling [72]3 years ago
7 0

Answer:

Step-by-stFind the slope of the line that passes through the points shown in the table.

The slope of the line that passes through the points in the table is

.ep explanation:

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Write the equation for the line that passes through (2, -4) and is
Kryger [21]

Answer: y= x-2

Step-by-step explanation:

Perpendicularity entails the slope of line a is -1 divided by the slope of line b

m1= (-1/m2)

From y=Mx +c

We compare with x-4y=7

y=(1/4)x-7/4

Meaning m2= 1/4

m1= -1/(1/4)= -1*4= -4

((y-y1)/(x-x1))= ((y2-y1)/(x2-x1))=m1

x1= 2, y1= -4

((y-(-4))/(x-2))= -4

((y+4)/(x-2))= -4

Cross multiply

y+4= -4(x-2)

y= x-2

3 0
3 years ago
A betta fish tank is in the shape of a cube. The volume of the fish tank is 216
GarryVolchara [31]

To find this answer, we need to understand how to get the Volume.

We get the volume by the formula: L x W x H

L = Length

W = Width

H = Height

So, we can see that there are 3 units required to know for getting the volume, if that's true, then, to do the inverse operation of finding the volume. That can be done by using thie formula:

V=a^3

a= edge

Solving for a

a=V⅓=216⅓=6

<h2>So hence, each of the Cube shaped Fish Tank is 6in³</h2>

now, let's look at how to find whether our answer is right or wrong

6x6=36

36x6=216

So hence, our answer is right!

-------------------------------------------------------------------------------------------------------"The beautiful thing about learning is that no one can take it away from you!" B.B.King

Thanks!

Mark me brainliest!

Have a GREAT AWESOME day!

~ms115~

:D

6 0
3 years ago
Please help me if you can​
Mekhanik [1.2K]

Answer:

1)-9x^5 + 7x^2 + 3    2)  -2x2 • (x - 7)      3)  -23v^2 + 7v + 4    4) is just 7x

7 0
3 years ago
HELP PLEASE I WILL GIVE 100 POINTS TO WHOEVER GIVES ME THE RIGHT ANSWER​
Dovator [93]

Answer:

44°

Step-by-step explanation:

Note that the square in located to the left of the two given intersecting lines denotes that it is a right angle, in which the measurements is 90°.

This means that:

∠α + ∠β = 90°

Let:

m∠α = x

m∠β = 46°

Plug in the corresponding numbers and variable to the given terms:

x + 46 = 90

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 46 from both sides:

x + 46 (-46) = 90 (-46)

x = 90 - 46

x = 44

x = 44° is your answer.

~

8 0
3 years ago
Read 2 more answers
The more frequently heroin is used, the greater the risk of permanent damage of addiction or dependence.
gulaghasi [49]
Answer...... True

Explanation:
heroin is a addictive substance and the more you take it the greater risk of developing short and long term effects
4 0
3 years ago
Read 2 more answers
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