
RHR/bpm 




68 




88 




63 




68 




86 




72 




77 




94 




94 




83 




71 




69 




82 




79 




65 









72 
Population mean 







1 
15 
Find the sample size n for the resting heart rate data. 


2 
77.27 
Find the sample mean x resting heart rate. 


3 
10.25 
Find the sample standard deviation sx of the resting heart rate. 


4 
H0: µ=72 
Write out the null hypothesis: H0: 


5 
H1: µ≠72 
Write out the alternate hypothesis: H1: 


6 
0.05 
What is alpha α? 


7 
14 
How many degrees of freedom are there? 


8 
2.14 
Determine tc 


9 
1.99 
Find the tstatistic t. 


10 

We fail to reject the null hypothesis 


11 
No 
Is the class resting heart rate significantly different from the expected population mean of 72? 


12 
0.07 
What is the pvalue for this hypothesis test? 


13 
0.93 
What is the largest possible confidence interval for which this difference is significant? 


14 
Yes 
Would the sample be statistically significantly different at an significance of 10%? 















































































































































































































