Question

In: Statistics and Probability

The U.S. Census Bureau conducts a study to determine the time needed to complete the short...

The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes. There is a known standard deviation of 2.2 minutes. The population distribution is assumed to be normal. Identify the following. (Enter exact numbers as integers, fractions or decimals.)

a. x-bar =

b. σ =

c. n =

Solutions

Expert Solution

a) = 8.2

b) = 2.2

c) n = 200

                                  

                                      

                                     

                                     

                                         

orchestra answered 1 year ago
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