Suppose that insurance companies did a survey. They randomly surveyed 430 drivers and found that 300 claimed to always buckle up. We are interested in the population proportion of drivers who claim to always buckle up. NOTE: If you are using a Student's tdistribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) E Part (a) + Part (h) + Part (C) E Par! (d) - Part (e) If this survey were done by telephone, select 3 difculties the companies might have in obtaining random results. C Individuals may not tell the truth about buckling up. C Children who do not answer the phone will not be included. C Individuals may choose to participate or not participate in the phone survey. Only people over the age of 24 would be included in the survey. C The individuals in the sample may not accurately reect the population