a) Find the 95% confidence interval for the mean pulse rate of all U.S. adult males who jog at least 15 miles per week. Round to 1 decimal place. Write the answer using the format: lower boundary< u < upper boundary
a) Find the 95% confidence interval for the mean pulse rate of all U.S. adult males who jog at least 15 miles per week. Round to 1 decimal place. Write the answer using the format: lower boundary< u < upper boundary
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:Pulse Rates: Pulse rate is an important measure of fitness of a person's
cardiovascular system. The mean pulse rate for all U.S. adult males is
approximately 72 heart beats per minute. A random sample of 21 U.S. adult males
who jog at least 15 miles per week had a mean pulse rate of 53.6 beats per
minutes and a standard deviation of 3.23 beats per minutes.
a) Find the 95% confidence interval for the mean pulse rate of all U.S. adult males
who jog at least 15 miles per week. Round to 1 decimal place. Write the answer
using the format: lower boundary< u < upper boundary
b) Does it appear that jogging at least 15 miles per week reduces the mean pulse
rate for adult males? Explain your answer.
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