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Data show that men between the ages of 20 and 29 in a general population have...

Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3​ inches, with a standard deviation of 2.6 inches. A baseball analyst wonders whether the standard deviation of heights of​ major-league baseball players is less than 2.6 inches. The heights​ (in inches) of 20 randomly selected players are shown in the table

72
74
71
73
76
70
77
74
72
72
77
72
75
70
73
74
75
73
74
74

rounded it to 3 decimals

math   Statistics-And-Probability   
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