RHR/bpm |
---|
68 |
88 |
63 |
68 |
86 |
72 |
77 |
94 |
94 |
83 |
71 |
69 |
82 |
79 |
65 |
The human heart has a mean resting heart rate (RHR)of 72 beats per minute (bpm). The table gives the heart rates for students in ESS 101j Joggling class. Calculate the sample mean and sample standard deviation for the data. Perform a hypothesis test that the class RHR is different from the expected population mean resting heart rate at a significance of 5%
Statistic or Parameter | Symbol | Equations | Excel |
---|---|---|---|
Hypothesis Testing | |||
Degrees of freedom | df | = n-1 | =COUNT(data)-1 |
Calculate a t-statistic (t) | t | (x - µ)/(sx/sqrt(n)) | |
Calculate t-critical for a two-tailed test | tc | =TINV(α,df) | |
Calculate a p-value from a t-statistic t | p | = TDIST(ABS(t),df,#tails) |