Statistics Find The Mean and Median Question

Question

28. IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ of the population is 100. Does the sample mean suggest that the sample is consistent with the population?

 

IQ: 96 89 87 87 101 103 103 96 127 126 101 96 93 88 94 85 97 114 113 124

Answer 1

n=20

mean =100 =AM = Arithmetic Mean = sum/20

sum= 2020

mean = 2020/20= 101 not 100 (unless rounded to nearest hundred or tens)

but it's so close it's very very consistent with 100 as the population mean