You run a bank and want to estimate the bank’s average number of customers per day (the population is all the days you are open for business in a year). You take a random sample of 10 days and record the numbers of customers on those days. The sample da

You run a bank and want to estimate the bank’s average number of customers per day (the population is all the days you are open for business in a year). You take a random sample of 10 days and record the numbers of customers on those days. The sample da

You run a bank and want to estimate the bank’s average number of customers per day (the population is all the days you are open for business in a year). You take a random sample of 10 days and record the numbers of customers on those days. The sample data is shown below. What is a 95% confidence interval for the bank’s average number of customers per day?

450 470 430 420 490
440 460 420 500 420
a [434, 466]
b [432, 468]
c [429, 471]
d [424, 476]


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