In a study of starting salaries for assistant professors, five male assistant professors at each of three types of doctoral-granting institutions were randomly polled and their starting salaries were recorded under the condition of anonymity. The results of the survey (measured in $1,000) are given below. Public Universities: 50.3, 48.9, 49.5, 69.5, 53.0 Private-Independent: 80.8, 70.2, 61.9, 68.0, 68.0 Church-Affiliated: 67.9, 58.3, 58.7, 47.2, 51.2 Use R to construct a 98% confidence interval for the difference in mean starting salaries (in thousands of dollars) for assistant professors at public and private/independent doctoral- granting institutions. (Use Public-Private. Enter your answer using interval notation. Round your numerical values to one decimal place.) thousand dollars

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In a study of starting salaries for assistant professors, five male assistant professors at each of three types of doctoral-granting institutions were randomly polled and their starting salaries were recorded under the condition of anonymity. The results of the survey (measured in $1,000) are given below.
  • Public Universities: 
    • 50.3,
    •  
    • 48.9,
    •  
    • 49.5,
    •  
    • 69.5,
    •  
    • 53.0
  • Private-Independent: 
    • 80.8,
    •  
    • 70.2,
    •  
    • 61.9,
    •  
    • 68.0,
    •  
    • 68.0
  • Church-Affiliated: 
    • 67.9,
    •  
    • 58.3,
    •  
    • 58.7,
    •  
    • 47.2,
    •  
    • 51.2
Use R to construct a 98% confidence interval for the difference in mean starting salaries (in thousands of dollars) for assistant professors at public and private/independent doctoral-granting institutions. (Use Public − Private. Enter your answer using interval notation. Round your numerical values to one decimal place.)
 
 
 
 thousand dollars
In a study of starting salaries for assistant professors, five male assistant professors at each of three types of doctoral-granting institutions were randomly polled and their starting
salaries were recorded under the condition of anonymity. The results of the survey (measured in $1,000) are given below.
Public Universities: 50.3, 48.9, 49.5, 69.5, 53.0
Private-Independent: 80.8, 70.2, 61.9, 68.0, 68.0
Church-Affiliated: 67.9, 58.3, 58.7, 47.2, 51.2
Use R to construct a 98% confidence interval for the difference in mean starting salaries (in thousands of dollars) for assistant professors at public and private/independent doctoral-
granting institutions. (Use Public-Private. Enter your answer using interval notation. Round your numerical values to one decimal place.)
thousand dollars
Transcribed Image Text:In a study of starting salaries for assistant professors, five male assistant professors at each of three types of doctoral-granting institutions were randomly polled and their starting salaries were recorded under the condition of anonymity. The results of the survey (measured in $1,000) are given below. Public Universities: 50.3, 48.9, 49.5, 69.5, 53.0 Private-Independent: 80.8, 70.2, 61.9, 68.0, 68.0 Church-Affiliated: 67.9, 58.3, 58.7, 47.2, 51.2 Use R to construct a 98% confidence interval for the difference in mean starting salaries (in thousands of dollars) for assistant professors at public and private/independent doctoral- granting institutions. (Use Public-Private. Enter your answer using interval notation. Round your numerical values to one decimal place.) thousand dollars
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