A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeless persons who are veterans. *Please show all the steps*

1 answer below »
A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeless persons who are veterans.


*Please show all the steps*

Answered Same DayDec 20, 2021

Answer To: A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval...

Robert answered on Dec 20 2021
129 Votes
90% Confidence Interval for p
p̂ = x
n
= 63280 = 9/40 = 0.225
Significance level = α = 1− confidence = 1 − 0.9 = 0.1
Critical z-value = zα/2 = z0.1/2 = z0.05 = 1.645 (From z table , using interpo-
lation, 1/2 th distance between 1.64 and 1.65 )
Standard error of p̂ : SE =
√
p̂× (1 −...
SOLUTION.PDF
SOLUTION.PDF

Answer To This Question Is Available To Download

Related Questions & Answers

More Questions »

Submit New Assignment

Copy and Paste Your Assignment Here
Have files?
April
January
February
March
April
May
June
July
August
September
October
November
December
2025
2025
2026
2027
SunMonTueWedThuFriSat
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
00:00
00:30
01:00
01:30
02:00
02:30
03:00
03:30
04:00
04:30
05:00
05:30
06:00
06:30
07:00
07:30
08:00
08:30
09:00
09:30
10:00
10:30
11:00
11:30
12:00
12:30
13:00
13:30
14:00
14:30
15:00
15:30
16:00
16:30
17:00
17:30
18:00
18:30
19:00
19:30
20:00
20:30
21:00
21:30
22:00
22:30
23:00
23:30