6.2 This quiz: 17 point(s) possible Question 12 of 17 > This question: 1 point(s) possible Submit quiz The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. 1425 1227 987 691 726 830 Assume the population is normally distributed. 728 748 543 629 1449 940 (a) Find the sample mean. x=(Round to one decimal place as needed.) (b) Find the sample standard deviation. SE (Round to one decimal place as needed.) (c) Construct a 99% confidence interval for the population mean μ A 99% confidence interval for the population mean is (0) (Round to one decimal place as needed.) S4 F4 3 E R Q Search F5 1+ F6 F7 & 805 % 7 6 29 Y U F8 * 8 00 D F G H V B N M F9 K 9 DP F10 COD YS Delete F11 F12 Insert PrtSc P E [ ? + II 11 ] Backspace Num Lock PgUp Enter Alt Ctrl Home PgDn Next 4:58 PM 3/18/2024 Home 144 PRE 6 * 00 L Shift End + 3 2
6.2 This quiz: 17 point(s) possible Question 12 of 17 > This question: 1 point(s) possible Submit quiz The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through (c) below. 1425 1227 987 691 726 830 Assume the population is normally distributed. 728 748 543 629 1449 940 (a) Find the sample mean. x=(Round to one decimal place as needed.) (b) Find the sample standard deviation. SE (Round to one decimal place as needed.) (c) Construct a 99% confidence interval for the population mean μ A 99% confidence interval for the population mean is (0) (Round to one decimal place as needed.) S4 F4 3 E R Q Search F5 1+ F6 F7 & 805 % 7 6 29 Y U F8 * 8 00 D F G H V B N M F9 K 9 DP F10 COD YS Delete F11 F12 Insert PrtSc P E [ ? + II 11 ] Backspace Num Lock PgUp Enter Alt Ctrl Home PgDn Next 4:58 PM 3/18/2024 Home 144 PRE 6 * 00 L Shift End + 3 2
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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![6.2
This quiz: 17 point(s) possible
Question 12 of 17
>
This question: 1 point(s) possible
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The state test scores for 12 randomly selected high school seniors are shown on the right. Complete
parts (a) through (c) below.
1425
1227
987
691
726
830
Assume the population is normally distributed.
728
748
543
629
1449
940
(a) Find the sample mean.
x=(Round to one decimal place as needed.)
(b) Find the sample standard deviation.
SE
(Round to one decimal place as needed.)
(c) Construct a 99% confidence interval for the population mean μ
A 99% confidence interval for the population mean is (0)
(Round to one decimal place as needed.)
S4
F4
3
E
R
Q Search
F5
1+
F6
F7
&
805
%
7
6
29
Y
U
F8
*
8
00
D
F
G
H
V
B
N
M
F9
K
9
DP
F10
COD
YS
Delete
F11
F12
Insert
PrtSc
P
E
[
?
+ II
11
]
Backspace
Num
Lock
PgUp
Enter
Alt
Ctrl
Home
PgDn
Next
4:58 PM
3/18/2024
Home
144
PRE
6
*
00
L
Shift
End
+ 3
2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fefc755ec-35b6-491b-ab13-70e5a32b17f2%2F40ef53e8-6d09-4d74-83f4-f6ba76ecb644%2Fndl29f4_processed.jpeg&w=3840&q=75)
Transcribed Image Text:6.2
This quiz: 17 point(s) possible
Question 12 of 17
>
This question: 1 point(s) possible
Submit quiz
The state test scores for 12 randomly selected high school seniors are shown on the right. Complete
parts (a) through (c) below.
1425
1227
987
691
726
830
Assume the population is normally distributed.
728
748
543
629
1449
940
(a) Find the sample mean.
x=(Round to one decimal place as needed.)
(b) Find the sample standard deviation.
SE
(Round to one decimal place as needed.)
(c) Construct a 99% confidence interval for the population mean μ
A 99% confidence interval for the population mean is (0)
(Round to one decimal place as needed.)
S4
F4
3
E
R
Q Search
F5
1+
F6
F7
&
805
%
7
6
29
Y
U
F8
*
8
00
D
F
G
H
V
B
N
M
F9
K
9
DP
F10
COD
YS
Delete
F11
F12
Insert
PrtSc
P
E
[
?
+ II
11
]
Backspace
Num
Lock
PgUp
Enter
Alt
Ctrl
Home
PgDn
Next
4:58 PM
3/18/2024
Home
144
PRE
6
*
00
L
Shift
End
+ 3
2
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