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18 May 2019
The football coach randomly selected twelve players and timed how long each player took to complete a certain drill. The times (in minutes) were:
6 10 7 9 12 8 10 9 7 5 11 8
A. Find a 98%% confidence interval for the population mean . Assume the population has a standard normal distribution.
B. Find a 98% confidence interval for the population standard deviation
The football coach randomly selected twelve players and timed how long each player took to complete a certain drill. The times (in minutes) were:
6 10 7 9 12 8 10 9 7 5 11 8
A. Find a 98%% confidence interval for the population mean . Assume the population has a standard normal distribution.
B. Find a 98% confidence interval for the population standard deviation
Joram GuingguingLv10
17 Feb 2021