6.1 & 6.2 不 < Question 16 of 17 This quiz: 17 point(s) possible This question: 1 point(s) possible Submit quiz be used, explain why. Interpret the results. Use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the population mean. Justify your decision. If neither distribution can In a random sample of 18 mortgage institutions, the mean interest rate was 3.57% and the standard deviation was 0.48%. Assume the interest rates are normally distributed. Which distribution should be used to construct the confidence interval? A. Use a normal distribution because the interest rates are normally distributed and σ is known. OB. Use a t-distribution because it is a random sample, σ is unknown, and the interest rates are normally distributed. OC. Use a normal distribution because n < 30 and the interest rates are normally distributed. OD. Use a t-distribution because the interest rates are normally distributed and σ is known. OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the interest rates are not normally distributed. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. OA. The 90% confidence interval is ( (Round to two decimal places as needed.) #3 X $ S4 4 Q Search F4 F5 E R EL F6 % 205 6 Y G H F7 F8 & 27 * 8 8 ل V B N M F9 O P K F10 V COD F11 Delete F12 Insert PrtSc P { [ Alt Ctrl ? + 11 Home Backspace Num Lock PgUp Enter Next 4:51 PM 3/18/2024 G PRE 7 Home 00 144 4 5 * 2 Shift End + PoDn End 144 PgUp 6
6.1 & 6.2 不 < Question 16 of 17 This quiz: 17 point(s) possible This question: 1 point(s) possible Submit quiz be used, explain why. Interpret the results. Use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the population mean. Justify your decision. If neither distribution can In a random sample of 18 mortgage institutions, the mean interest rate was 3.57% and the standard deviation was 0.48%. Assume the interest rates are normally distributed. Which distribution should be used to construct the confidence interval? A. Use a normal distribution because the interest rates are normally distributed and σ is known. OB. Use a t-distribution because it is a random sample, σ is unknown, and the interest rates are normally distributed. OC. Use a normal distribution because n < 30 and the interest rates are normally distributed. OD. Use a t-distribution because the interest rates are normally distributed and σ is known. OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the interest rates are not normally distributed. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. OA. The 90% confidence interval is ( (Round to two decimal places as needed.) #3 X $ S4 4 Q Search F4 F5 E R EL F6 % 205 6 Y G H F7 F8 & 27 * 8 8 ل V B N M F9 O P K F10 V COD F11 Delete F12 Insert PrtSc P { [ Alt Ctrl ? + 11 Home Backspace Num Lock PgUp Enter Next 4:51 PM 3/18/2024 G PRE 7 Home 00 144 4 5 * 2 Shift End + PoDn End 144 PgUp 6
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter26: Customary (english) Units Of Measure
Section: Chapter Questions
Problem 6A: Add 432.78 + 43.278 + 4.3278.
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Transcribed Image Text:6.1 & 6.2
不
<
Question 16 of 17
This quiz: 17 point(s) possible
This question: 1 point(s) possible
Submit quiz
be used, explain why. Interpret the results.
Use the standard normal distribution or the t-distribution to construct a 90% confidence interval for the population mean. Justify your decision. If neither distribution can
In a random sample of 18 mortgage institutions, the mean interest rate was 3.57% and the standard deviation was 0.48%. Assume the interest rates are normally distributed.
Which distribution should be used to construct the confidence interval?
A. Use a normal distribution because the interest rates are normally distributed and σ is known.
OB. Use a t-distribution because it is a random sample, σ is unknown, and the interest rates are normally distributed.
OC. Use a normal distribution because n < 30 and the interest rates are normally distributed.
OD. Use a t-distribution because the interest rates are normally distributed and σ is known.
OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the interest rates are not normally distributed.
Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice.
OA. The 90% confidence interval is (
(Round to two decimal places as needed.)
#3
X
$
S4
4
Q Search
F4
F5
E
R
EL
F6
%
205
6
Y
G
H
F7
F8
&
27
* 8
8
ل
V
B
N
M
F9
O
P
K
F10
V
COD
F11
Delete
F12
Insert
PrtSc
P
{
[
Alt
Ctrl
?
+ 11
Home
Backspace
Num
Lock
PgUp
Enter
Next
4:51 PM
3/18/2024
G
PRE
7
Home
00
144
4
5
*
2
Shift
End
+
PoDn
End
144
PgUp
6
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