F H K 95% Confidence Interval for Average Age of Online College Students: e Mean: e St. Dev: ple Size: tribution: ical Value: G rgin of Error: 28.88 12.92 26 2.06*2 decimals 5.222 decimals Calculation: L Note: Calculation cells should list the numbers and operations used to get your answers. Do not put the generic formula and show all calculation steps. M

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please help with the first section, the section being “Average Age of College Students”. I am having issues coming up with the Distribution and Calculations for the Margin of Error, Lower and Upper Bound. Thank you.
7
3 Age
4
5
6
7
A
8
9
10
11
12
13
14
✓: X✓ fx We are 95% confident that true population mean lies inside the confidence interval (23.66, 34.10).
C
E
F
G
H
J
K
95% Confidence Interval for Average Age of Online College Students:
15
33 M
16
B
Gender
34 M
35 F
17
18
20 F
19
18 F
19 M
45 F
20
21
22
33 M
24 M
23
24
37 F
25
26 M
32 F
26
27
32 F
18 F
16 M
37 F
28
23 F
28 F
77 F
32
33
50 F
30 M
25 M
29 24 M
25
30
22 M
34
35
25 M
26 F
36
37
77'F
D
Points
1
2
Week 3
2
2
1
1
2
Sample Mean:
Sample St. Dev:
Sample Size:
1
1
2
2
Week 5
Distribution:
Critical Value:
Margin of Error:
Lower Bound:
Upper Bound:
2
2
1
1
Interpret We are 95% confident that true population mean lies inside the confidence.
(context) interval (23.66, 34.10).
95% Confidence Interval for Proportion of Male Online College Students:
2
Sample Size:
Number of Males:
Male Proportion:
25
28.88
12.92
26
Distribution:
Critical Value:
Margin of Error:
Lower Bound:
Upper Bound:
Interpret
(context)
2.06*2 decimals
Total Points
Week 6 Project Help
5.222 decimals
23.66*2 decimals
34.1*2 decimals
Calculation:
Calculation:
Calculation:
Female Proportion
*2 decimals
Note: Calculation cells should
list the numbers and
operations used to get your
answers. Do not put the
generic formula and show all
calculation steps.
4 decimals Calculation:
4 decimals Calculation:
4 decimals
Calculation:
L
*4 decimals
M
0
P
Q
R
S
T
.
• Review 8.2 of your text as well as the
Project Help tab below for the first
confidence interval calculation (mean).
Also watch Excel videos in BlackBoard.
• Review 8.3 of your text as well as the
Project Help tab below for the second
confidence interval calculation
(proportion). Also watch Excel videos in
BlackBoard.
.
"Show Your Calculation" - these cells
should list the numbers and operations
used to get your answers. Do not just
put the general formula and show all
calculation steps. Do not put "=" in
formulas so I can see the formula by just
looking at the cell, not opening it.
. For the "Interpret" text, what can we
conclude about the population mean
age and the population male proportion
of online students with respect to these
bounds?
.
Your data for Columns A and B will link
from the Week 3 tab on this
spreadsheet - no need to re-input!
The green cells (G3 and G4) will link
from the Week 3 tab on this
spreadsheet.
. Only cells that are yellow need to be
completed.
. Please note rounding for calculations!
40%
3:35 PM
$27/2000 6
Transcribed Image Text:7 3 Age 4 5 6 7 A 8 9 10 11 12 13 14 ✓: X✓ fx We are 95% confident that true population mean lies inside the confidence interval (23.66, 34.10). C E F G H J K 95% Confidence Interval for Average Age of Online College Students: 15 33 M 16 B Gender 34 M 35 F 17 18 20 F 19 18 F 19 M 45 F 20 21 22 33 M 24 M 23 24 37 F 25 26 M 32 F 26 27 32 F 18 F 16 M 37 F 28 23 F 28 F 77 F 32 33 50 F 30 M 25 M 29 24 M 25 30 22 M 34 35 25 M 26 F 36 37 77'F D Points 1 2 Week 3 2 2 1 1 2 Sample Mean: Sample St. Dev: Sample Size: 1 1 2 2 Week 5 Distribution: Critical Value: Margin of Error: Lower Bound: Upper Bound: 2 2 1 1 Interpret We are 95% confident that true population mean lies inside the confidence. (context) interval (23.66, 34.10). 95% Confidence Interval for Proportion of Male Online College Students: 2 Sample Size: Number of Males: Male Proportion: 25 28.88 12.92 26 Distribution: Critical Value: Margin of Error: Lower Bound: Upper Bound: Interpret (context) 2.06*2 decimals Total Points Week 6 Project Help 5.222 decimals 23.66*2 decimals 34.1*2 decimals Calculation: Calculation: Calculation: Female Proportion *2 decimals Note: Calculation cells should list the numbers and operations used to get your answers. Do not put the generic formula and show all calculation steps. 4 decimals Calculation: 4 decimals Calculation: 4 decimals Calculation: L *4 decimals M 0 P Q R S T . • Review 8.2 of your text as well as the Project Help tab below for the first confidence interval calculation (mean). Also watch Excel videos in BlackBoard. • Review 8.3 of your text as well as the Project Help tab below for the second confidence interval calculation (proportion). Also watch Excel videos in BlackBoard. . "Show Your Calculation" - these cells should list the numbers and operations used to get your answers. Do not just put the general formula and show all calculation steps. Do not put "=" in formulas so I can see the formula by just looking at the cell, not opening it. . For the "Interpret" text, what can we conclude about the population mean age and the population male proportion of online students with respect to these bounds? . Your data for Columns A and B will link from the Week 3 tab on this spreadsheet - no need to re-input! The green cells (G3 and G4) will link from the Week 3 tab on this spreadsheet. . Only cells that are yellow need to be completed. . Please note rounding for calculations! 40% 3:35 PM $27/2000 6
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