The 11th Edition of The Pro Football Encyclopedia gave the following information. A random sample of pro football player ages in years: 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 31, 31, 31, 32, 32, 32, 32, 32, 33, 34, 34, 35, 36, 40 A) Calculate the mean and standard deviation of this sample. (Round mean value to 2 decimal places and standard deviation to 3 decimal places) x = 29.25 ✓ S= D.F.= B) Based on the given sample, construct a 83 % confidence interval to estimate the population mean age (μ) of pro football players. Hint: DO NOT use the T-table, use the invt() program available in your calculator to calculate the t-value. (Round te to 3 decimal places and margin of error to 2 decimal places). tc C.I. : x C) Based on the given sample, construct a 89 % confidence interval to estimate the population mean age (μ) of pro football players. Hint: DO NOT use the T-table, use the invt() program available in your calculator to calculate the t-value. (Round te to 3 decimal places and margin of error to 2 decimal places). tc - C.I. : x
The 11th Edition of The Pro Football Encyclopedia gave the following information. A random sample of pro football player ages in years:
24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 31, 31, 31, 32, 32, 32, 32, 32, 33, 34, 34, 35, 36, 40
A) Calculate the mean and standard deviation of this sample. (Round
�¯=29.25Correct
�=
�.�.=
B) Based on the given sample, construct a 83 % confidence
��=
C.I. : �¯±
C) Based on the given sample, construct a 89 % confidence interval to estimate the population mean age (�) of pro football players. Hint: DO NOT use the T-table, use the invt( ) program available in your calculator to calculate the t-value. (Round �� to 3 decimal places and margin of error to 2 decimal places).

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