In 2018, Mike Krzyzewski and John Calipari topped the list of highest-paid college basketball coaches. The sample below shows the head basketball coach's salary for a sample of 10 schools playing NCAA Division I basketball. Salary data are in millions of dollars. University Coach's Salary North Carolina State Iona Texas A&M Oregon Iowa State Miami (FL) Creighton Texas Tech South Dakota State New Mexico State 2.2 0.5 2.4 2.7 2.0 1.5 1.3 1.5 0.3 0.3

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In 2018, Mike Krzyzewski and John Calipari topped the list of highest-paid college basketball coaches. The sample below shows the head basketball coach's salary for a sample of 10 schools
playing NCAA Division I basketball. Salary data are in millions of dollars.
University Coach's Salary
North Carolina
State
Iona
Texas A&M
Oregon
Iowa State
Miami (FL)
Creighton
Texas Tech
South Dakota
State
New Mexico
State
2.2
0.5
2.4
2.7
2.0
1.5
1.3
1.5
0.3
0.3
(a) Use the sample mean for the 10 schools to estimate the population mean annual salary (in million dollars per year) for head basketball coaches at colleges and universities playing NCAA
Division I basketball.
million per year
Transcribed Image Text:In 2018, Mike Krzyzewski and John Calipari topped the list of highest-paid college basketball coaches. The sample below shows the head basketball coach's salary for a sample of 10 schools playing NCAA Division I basketball. Salary data are in millions of dollars. University Coach's Salary North Carolina State Iona Texas A&M Oregon Iowa State Miami (FL) Creighton Texas Tech South Dakota State New Mexico State 2.2 0.5 2.4 2.7 2.0 1.5 1.3 1.5 0.3 0.3 (a) Use the sample mean for the 10 schools to estimate the population mean annual salary (in million dollars per year) for head basketball coaches at colleges and universities playing NCAA Division I basketball. million per year
(b) Use the data to estimate the population standard deviation for the annual salary (in million dollars per year) for head basketball coaches. (Round your answer to four decimal places.)
million per year
(c) What is the 95% confidence interval for the population variance? (Round your answers to two decimal places.)
to
(d) What is the 95% confidence interval for the population standard deviation (in million dollars per year)? (Round your answers to two decimal places.)
million per year
million per year to $
Transcribed Image Text:(b) Use the data to estimate the population standard deviation for the annual salary (in million dollars per year) for head basketball coaches. (Round your answer to four decimal places.) million per year (c) What is the 95% confidence interval for the population variance? (Round your answers to two decimal places.) to (d) What is the 95% confidence interval for the population standard deviation (in million dollars per year)? (Round your answers to two decimal places.) million per year million per year to $
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