The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 34 smokers found that their mean starting age was 12 years old. Do the data support the claim at the 10% significance level? What are the correct hypotheses? Но: и 12 * years Hi: и 12 * years Based on the hypotheses, find the following: Test Statistic z= 3.2394 * (Round to 4 decimal places.) Critical Values = + 1.28 * (Round to 2 decimal places.) Based on the above we choose to Reject the null hypothesis The correct summary would be: There is enough evidence to support the claim start is different than 13. v that the mean age smokers first Get help: Written Example

The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 34 smokers found that their mean starting age was 12 years old. Do the data support the claim at the 10% significance level? What are the correct hypotheses? Но: и 12 * years Hi: и 12 * years Based on the hypotheses, find the following: Test Statistic z= 3.2394 * (Round to 4 decimal places.) Critical Values = + 1.28 * (Round to 2 decimal places.) Based on the above we choose to Reject the null hypothesis The correct summary would be: There is enough evidence to support the claim start is different than 13. v that the mean age smokers first Get help: Written Example

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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what was the right answer for the wrong ones

The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher
thinks that smoking age has significantly changed since the invention of ENDS electronic nicotine delivery systems. A
survey of smokers of this generation was done to see if the mean age has changed. The sample of 34 smokers found that
their mean starting age was 12 years old. Do the data support the claim at the 10% significance level?
What are the correct hypotheses?
Но: и
12
* years
Hi: и
12
* years
Based on the hypotheses, find the following:
Test Statistic z= 3.2394
* (Round to 4 decimal places.)
Critical Values = + 1.28
* (Round to 2 decimal places.)
Based on the above we choose to Reject the null hypothesis
The correct summary would be: There is enough evidence to support the claim
start is different than 13.
v that the mean age smokers first
Get help: Written Example

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