The physical fitness score for a population of police officers at a local police station is 85, The physical fitness score for a population of police officers at a local police station is 85, The...


The physical fitness score for a population of police officers at a local police station is 85,

The physical fitness score for a population of police officers at a local police station is 85,

The physical fitness score for a population of police officers at a local police station is 85,



with a standard deviation of 8 on a 100-point physical endurance scale. Suppose the police chief



selects a sample of 52 local police officers from this population and records a mean physical



fitness rating on this scale equal to 89. He conducts a one-sample z test to determine whether



physical endurance significantly

increased

at a .05 level of significance (do not use SPSS) (6



pts).



i.


List and explain the 5 steps of hypothesis testing; what conclusion do you arrive at?


ii.


Compute effect size using Cohen’s d.
ii.


Compute effect size using Cohen’s d.

Sep 29, 2022
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