Aveterinary researcher takes an srs of 60 horses presenting with colic. the average age of the 60 horses with colic is 12 years. the average age of horses seen at the veterinary clinic was determined to be 10 years. the researcher concludes that horses with colic are older. the value 10 years is a:   sample mean. population mean. sample distribution. sample variance.

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

it would be a on edgenuit y

the diagram below is your final answer