Claim: The standard deviation of pulse rates of adult males is
more thanmore than
11
bpm. For a random sample of
146
adult males, the pulse rates have a standard deviation of
12.2
bpm. Find the value of the test statistic.
The value of the test statistic is
nothing.
(Round to two decimal places as needed.)
Test statistic formula is given as below:
Chi-square = (n - 1)*S^2/σ^2
We are given
S = 12.2
σ = 11
n = 146
Chi-square = (146 - 1)*12.2^2/11^2 = 145* 148.84/121 = 178.362
The value of the test statistic is 178.36.
Claim: The standard deviation of pulse rates of adult males is more thanmore than 11 bpm....