iew 8.2 of your te ect Help tab below fidence interval ca watch Excel videa ew 8.3 of your text ect Help tab below dence interval calc portion). Also watch Board. w Your Calculation"
iew 8.2 of your te ect Help tab below fidence interval ca watch Excel videa ew 8.3 of your text ect Help tab below dence interval calc portion). Also watch Board. w Your Calculation"
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Part 1 is completed, I just need help with Part 2.
Part 2 is “95% confidence interval for proportion of Male Online College Students.”
Transcribed Image Text:3 Age
4
5
6
7
A
8
91
10
11
12
13
14
33 M
15
16
B
Gender
34 M
35 F
17
18
20 F
19
18 F
20
19 M
45 F
21
22
33 M
23
24 M
24
37 F
25
26 M
26
32 F
27
32 F
18 F
28
29
16 M
37 F
30
31
23 F
32
28 F
33
77 F
34
50 F
35
C
36
22 M
25 M
26 F
37
30 M
25 M
24 M
D
Points
1
2
Week 3
2
2
1
1
2
E
Sample Mean:
Sample St. Dev:
Sample Size:
1
1
2
2
Distribution:
Critical Value
Margin of Error:
Lower Bound:
Upper Bound:
F
G
H
I
K
95% Confidence Interval for Average Age of Online College Students:
2
2
1
1
2
Sample Size:
Number of Males:
Male Proportion:
28.88
12.92
26
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:
Distribution:
Critical Value:
T-Distribution
Interpret
(context)
Margin of Error:
Lower Bound:
Upper Bound:
2.06*2 decimals
25
Total Points
Week 5 Week 6 Project Help
▾
5.22*2 decimals Calculation:
23.66 *2 decimals Calculation:
34.1*2 decimals Calculation:
A
Female Proportion
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.
*2 decimals
2.06 12.92/26
28.88-5.22= 23.66
28.88 +5.22-34.10
4 decimals Calculation:
4 decimals Calculation:
4 decimals Calculation:
*4 decimals
M
0
P
Q
• 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?
I
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!
Expert Solution
Introduction
In above scenario we have to deal with confidence interval for population proportion.
The formula for the confidence interval for a population proportion follows
where p is the estimated proportion =
and x is the number of success in the sample
n is the sample size
Zc is the critical value
According to the Rule of Sample Proportions, if np>10 then the sampling distributing will be approximately normal.
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