State the distribution to use for the test. (Round your answers to four decimal places.) O Part (e) What is the test statistic? (If using the z distribution round your answers to two decimal places, and if using the t distribution round your answers to three decimal places.) O Part (f) What is the p-value? (Round your answer to four decimal places.) Explain what the p-value means for this problem. O If H, is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less. O If Ho is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less. O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less. O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less.
State the distribution to use for the test. (Round your answers to four decimal places.) O Part (e) What is the test statistic? (If using the z distribution round your answers to two decimal places, and if using the t distribution round your answers to three decimal places.) O Part (f) What is the p-value? (Round your answer to four decimal places.) Explain what the p-value means for this problem. O If H, is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less. O If Ho is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less. O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less. O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less.
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
ch.9
5
Transcribed Image Text:O S.I.A. Best Songs V x
O Syllabus for Statistics
* Hmwk: Chapter 9 - Mat x
My Questions | bartleb
= 6.1 The Standard Norm x
Bookmarks
A webassign.net/web/Student/Assignment-Responses/last?dep=25302806
From generation to generation, the mean age when smokers first start to smoke varies. However, the standard deviation of that age remains constant at around 2.1 years. A
survey of 37 smokers of this generation was done to see if the mean starting age is at least 19. The sample mean was 18.2 with a sample standard deviation of 1.3. Do the data
support the claim at the 5% level?
Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that
assumption, though.)
+ Part (a)
O Part (b)
+ Part (c)
O Part (d)
State the distribution to use for the test. (Round your answers to four decimal places.)
X -O (C
O Part (e)
What is the test statistic? (If using the z distribution round your answers to two decimal places, and if using the t distribution round your answers to three decimal places.)
O Part (f)
What is the p-value? (Round your answer to four decimal places.)
Explain what the p-value means for this problem.
O If H, is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less.
O If H, is true, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less.
O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is not 18.2 years or less.
O If Ho is false, then there is a chance equal to the p-value that the average age of people when they first begin to smoke is 18.2 years or less.
Transcribed Image Text:O S.I.A. Best Songs V x
O Syllabus for Statistics
* Hmwk: Chapter 9 - Mat x
My Questions | bartleby
= 6.1 The Standard Norm x
Bookmarks
A webassign.net/web/Student/Assignment-Responses/last?dep=25302806
Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
1/2(p-value)
1/2(p-value
p-value
1/2(p-value)
1/2(p-value
p-value
O Part (h)
Indicate the correct decision ("reject" or "do not reject" the null hypothesis), the reason for it, and write an appropriate conclusion.
(i) Alpha (Enter an exact number as an integer, fraction, or decimal.)
a =
(ii) Decision:
O reject the null hypothesis
O do not reject the null hypothesis
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