An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. The results are shown below. Under Age of 18 Over Age of 18 n1 = 500 n2 = 600 Number of accidents = 180 Number of accidents = 150 We are interested in determining if the accident proportions differ between the two age groups. The pooled estimator of the population proportion is
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Here the sample proportion for the two given sample are: Hence the point estimate for the difference in proportion will be, (b) The confidence interval for difference of mean is obtain
Step-by-step explanation:
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