Forty-two percent of primary care doctors think their patients receive unnecessary medicalcare (reader’s digest, December 2011/January 2012).a. Suppose a sample of 300 primary care doctors were taken. Show the samplingdistribution of the proportion of the doctors who think their patients receive unnecessarymedical care.b. What is the probability that the sample proportion will be within ±.03 of the populationproportion?c. What is the probability that the sample proportion will be within ±.05 of the population proportion?d. What would be the effect of taking a larger sample on the probabilities in parts (b)and (c)? Why?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.