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(Solved): Normal Approximation Instructions: Using the information given, determine whether a normal approxima ...
Normal Approximation Instructions: Using the information given, determine whether a normal approximation is appropriate, and then answer the questions.
16%of all people in a certain geographic region are unemployed. A sample of 460 people are surveyed. Let
hat(p)represent the sample proportion of unemployed people in a certain geographic region. Is a normal approximation appropriate? Why or Why not?
?What is the mean of the sampling proportion?
What is the standard deviation of the sampling proportion?
?(round to thousandths) Find the probability that
hat(p)is fewer than .15 .
P(hat(p)<.15)=
?