Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical valuetα/2,(b) find the critical valuezα/2,or (c) state that neither the normal distribution nor the t distribution applies. The confidence level is99%,σis not known, and the histogram of57player salaries (in thousands ofdollars) of football players on a team is as shown. Assume that we want to construct a confidence40-interval. Do one of the following, as appropriate: (a)find the critical value t/2, (b) find the critical value30-Za/2; or (c) state that neither the normal20-distribution nor the t distribution applies.10-The confidence level is 99%, o is not known, andthe histogram of 57 player salaries (in thousands ofdollars) of football players on a team is as shown.0-40008000 12000 16000 20000Salary (thousands of dollars)Select the correct choice below and, if necessary, fill in the answer box to complete your choice.O A. ta/2=%3D(Round to two decimal places as needed.)В.Za/2 =(Round to two decimal places as needed.)C. Neither the normal distribution nor the t distribution applies.Frequency

Name: Assume that we want to construct a confidence interval. Do one of the
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Description: Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical valuetα/2,(b) find the critical valuezα/2,or (c) state that neither the normal distribution nor the t distribution applies. T

Given: Confidence level = 99% Sample size = 57 σ is unknown

Answered: Assume that we want to construct a…

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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100%

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value

tα/2,

(b) find the critical value

zα/2,

or (c) state that neither the normal distribution nor the t distribution applies.

The confidence level is

99%,

is not known, and the histogram of

player salaries (in thousands ofdollars) of football players on a team is as shown.

Assume that we want to construct a confidence
40-
interval. Do one of the following, as appropriate: (a)
find the critical value t/2, (b) find the critical value
30-
Za/2; or (c) state that neither the normal
20-
distribution nor the t distribution applies.
10-
The confidence level is 99%, o is not known, and
the histogram of 57 player salaries (in thousands of
dollars) of football players on a team is as shown.
0-
4000
8000 12000 16000 20000
Salary (thousands of dollars)
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. ta/2=
%3D
(Round to two decimal places as needed.)
В.
Za/2 =
(Round to two decimal places as needed.)
C. Neither the normal distribution nor the t distribution applies.
Frequency

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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