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The proportion of individuals insured by the All - Driver Automobile Insurance Company who received at least one traffic ticket during a five - year

The proportion of individuals insured by the All-Driver Automobile Insurance Company who received at least one traffic ticket during a five-year period is 0.15. Use the z-table.
a. Show the sampling distribution of ?bar(p) if a random sample of 150 insured individuals is used to estimate the proportion having received at least one ticket.
E(?bar(p))=
(to2 decimals)
?bar(p)=
(to4 decimals)
Can the sampling distribution of ?bar(p) be approximated by a normal distribution?
b. What is the probability that the sample proportion will be within +-0.03 of the population proportion (to 4 decimals)? Round z-value to 2 decimals.
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