Basic Statistics2080.15 marksNumerical: confidence interval estimationInterval estimation and confidence intervals
Define interval estimation. In an examination, the random sample of 10 students selected from examination and their marks obtained in an examination was 45, 55, 20, 54, 40, 55, 51, 35, 43 and 46. Find 99% confidence interval for population mean. Assuming that the population from which samples are dr
Define interval estimation. In an examination, the random sample of 10 students selected from examination and their marks obtained in an examination was 45, 55, 20, 54, 40, 55, 51, 35, 43 and 46. Find 99% confidence interval for population mean. Assuming that the population from which samples are drawn is normally distributed. [5]
Interval estimation is a method of statistical inference in which we estimate a population parameter by constructing a range (interval) of values, together with a stated confidence level, within which the true parameter value is expected to lie. It is expressed as: $$\text{Point Estimate} \pm \te...