13.Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than2.31parts per million. It was found that the mean amount of carbon monoxide in the air for the random sample of65cities is2.37parts per million and the standard deviation is2.12parts per million. Atα=0.10,can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. Question content area bottomPart 1(a) Identify the claim and stateH0andHa.Which of the following correctly statesH0andHa? H0: muμ greater than or equals≥ 2.31 2.31Ha: muμ less than< 2.31 2.31(Type integers or decimals. Do not round.) The claim is thealternative hypothesis.Part 2(b) Use technology to find the critical value(s) and identify the rejection region(s). The critical value(s) is/aret0=enter your response here .(Use a comma to separate answers as needed. Round to two decimal places as needed.)

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Answered: 13. Test a claim that the mean amount…

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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Question content area bottom

Part 1

(a) Identify the claim and state

and

Ha.

Which of the following correctly states

and

Ha?

H0:	muμ greater than or equals≥ 2.31 2.31
Ha:	muμ less than< 2.31 2.31

(Type integers or decimals. Do not round.)

The claim is the

alternative

hypothesis.

Part 2

(b) Use technology to find the critical value(s) and identify the rejection region(s).

The critical value(s) is/are

t0=enter your response here

(Use a comma to separate answers as needed. Round to two decimal places as needed.)

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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