;It is desired to estimate the average amount of overdue accounts for a certain firm. A simple random sample of accounts will yield an observation y, on the current amount overdue. A check of records will give the overdue amount x, for the same time period last year. Also, the population mean X for last year can be detemined. Discuss how you would determine whether to use as an estimator of the mean amount overdue: a The sample mean (customary estimator) of the y, values. A ratio estimator. A regression estimator. A difference estimator. d.

Needed to be solved c and d parts correclty in 30 minutes and get the thumbs up please solve in 30 minutes correctly by hand solution needed. Do is as soon as possible but before 35 minutes please Thanks