at a certain concert, 31% of the audience was under 20 years old. A random sample...
at a certain concert, 31% of the audience was under 20 years old. A random sample of n= 298 members of the audience was selected. the the Ui, the mean of the distribution of sample proportions. Write only a number as your answer. Do not write as a percentage.
Homework Answers
Solution
Given that,
p = 0.31
1 - p = 1 -0.31 =0.69
n = 298
mean = 
= p =0.31
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