Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results.In a recent season, the population standard deviation of the yards per carry for all running backs was 1.28. The yards per carry of 25 randomly selected running backs are shown below. Assume the s per carry are normally distributed. the results.Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. InterpretIn a recent season, the population standard deviation of the yards per carry for all running backs was 1.28. The yards per carry of 25 randomly selected running backs are shown below. Assume theyards per carry are normally distributed.1.65.35.54.64.34.6Which distribution should be used to construct the confidence interval?View an example Get more help.QA. The 95% confidence interval is ().(Round to two decimal places as needed.)OB. Neither distribution can be used to construct the confidence interval.$5.77.45T3.37.2OA. Use a t-distribution because n<30 and o is known.B. Use a normal distribution because o is known and the data are normally distributed.OC. Use a t-distribution because n<30 and o is unknown.OD. Use a normal distribution because n<30, the data are normally distributed and a is unknown.OE. Cannot use the standard normal distribution or the t-distribution because a is unknown, n<30, and the data are not normally distributed.Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice.A6YH&5.63.37CJ7.34.2*008I6.76.7K9<2.87.2O)OO1.36.2LP1.85.7Clear all-{[5.26.33.7Check answer6

the results. Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret In a recent season, the population standard deviation of the yards per carry for all running backs was 1.28. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 4.3 1.6 4.6 5.3 5.5 4.6 5.7 7.4 ⒸA. The 95% confidence interval is ( 3.3 7.2 5.6 3.3 (Round to two decimal places as needed.) OB. Neither distribution can be used to construct the confidence interval. 7.3 4.2 I 6.7 6.7 2.8 7.2 Which distribution should be used to construct the confidence interval? OA. Use a t-distribution because n<30 and a is known. B. Use a normal distribution because a is known and the data are normally distributed. OC. Use a t-distribution because n<30 and a is unknown. OD. Use a normal distribution because n<30, the data are normally distributed and a is unknown. OE. Cannot use the standard normal distribution or the t-distribution because a is unknown, n<30, and the data are not normally distributed. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. 1.3 6.2 1.8 5.7 5.2 6.3 3.7 O

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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Related questions

Question

Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. In a recent season, the population standard deviation of the yards per carry for all running backs was 1.28. The yards per carry of 25 randomly selected running backs are shown below. Assume the s per carry are normally distributed.

the results.
Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret
In a recent season, the population standard deviation of the yards per carry for all running backs was 1.28. The yards per carry of 25 randomly selected running backs are shown below. Assume the
yards per carry are normally distributed.
1.6
5.3
5.5
4.6
4.3
4.6
Which distribution should be used to construct the confidence interval?
View an example Get more help.
Q
A. The 95% confidence interval is ().
(Round to two decimal places as needed.)
OB. Neither distribution can be used to construct the confidence interval.
$
5.7
7.4
5
T
3.3
7.2
OA. Use a t-distribution because n<30 and o is known.
B. Use a normal distribution because o is known and the data are normally distributed.
OC. Use a t-distribution because n<30 and o is unknown.
OD. Use a normal distribution because n<30, the data are normally distributed and a is unknown.
OE. Cannot use the standard normal distribution or the t-distribution because a is unknown, n<30, and the data are not normally distributed.
Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice.
A
6
Y
H
&
5.6
3.3
7
C
J
7.3
4.2
*
00
8
I
6.7
6.7
K
9
<
2.8
7.2
O
)
O
O
1.3
6.2
L
P
1.8
5.7
Clear all
-
{
[
5.2
6.3
3.7
Check answer
6

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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