A simple random sample of 146 adult males from a normally distributed population results in a standard deviation of 10.7 beats per minute. The normal range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of 10 beats per minute. Use the sample results with a 0.01 significance level to test the claim that pulse rates of adult males have a standard deviation equal to 10 beats per minute; see the technology output available for this test. What do the results indicate about the effectiveness of using the range rule of thumb with the "normal range" from 60 to 100 beats per minute for estimating σ in this case? i Click the icon to view the technology output for this test. What are the null and alternative hypotheses? Ho: 0 = 10 beats per minute H₁: σ # 10 beats per minute Identify the test statistic x². x² (Round to two decimal places as needed.) Identify the P-value. The P-value is ☐. (Round to four decimal places as needed.) State the conclusion. Ho, because the P-value is the level of significance. There is evidence to warrant rejection of the claim that the standard deviation of adult males' pulse rates is equal to 10 Using the range rule of thumb is beats per minute. for estimating σ in this case because the conclusion of the test is to the null hypothesis.
A simple random sample of 146 adult males from a normally distributed population results in a standard deviation of 10.7 beats per minute. The normal range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of 10 beats per minute. Use the sample results with a 0.01 significance level to test the claim that pulse rates of adult males have a standard deviation equal to 10 beats per minute; see the technology output available for this test. What do the results indicate about the effectiveness of using the range rule of thumb with the "normal range" from 60 to 100 beats per minute for estimating σ in this case? i Click the icon to view the technology output for this test. What are the null and alternative hypotheses? Ho: 0 = 10 beats per minute H₁: σ # 10 beats per minute Identify the test statistic x². x² (Round to two decimal places as needed.) Identify the P-value. The P-value is ☐. (Round to four decimal places as needed.) State the conclusion. Ho, because the P-value is the level of significance. There is evidence to warrant rejection of the claim that the standard deviation of adult males' pulse rates is equal to 10 Using the range rule of thumb is beats per minute. for estimating σ in this case because the conclusion of the test is to the null hypothesis.
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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Transcribed Image Text:A simple random sample of 146 adult males from a normally distributed population results
in a standard deviation of 10.7 beats per minute. The normal range of pulse rates of
adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is
applied to that normal range, the result is a standard deviation of 10 beats per minute.
Use the sample results with a 0.01 significance level to test the claim that pulse rates of
adult males have a standard deviation equal to 10 beats per minute; see the technology
output available for this test. What do the results indicate about the effectiveness of using
the range rule of thumb with the "normal range" from 60 to 100 beats per minute for
estimating σ in this case?
i Click the icon to view the technology output for this test.
What are the null and alternative hypotheses?
Ho: 0
=
10
beats per minute
H₁:
σ
#
10
beats per minute
Identify the test statistic x².
x²
(Round to two decimal places as needed.)
Identify the P-value.
The P-value is ☐.
(Round to four decimal places as needed.)
State the conclusion.
Ho, because the P-value is
the level of
significance. There is
evidence to warrant rejection of the claim that the
standard deviation of adult males' pulse rates is equal to 10
Using the range rule of thumb is
beats per minute.
for estimating σ in this case because the
conclusion of the test is to
the null hypothesis.
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