Construct a 99 confidence interval for the proportion of

Assignment Help Basic Statistics

Reference no: EM13614899

The First Internet Bank wants to encourage its customers to do all their banking online. It offers higher interest to depositors and lower interest rates on loans to their internet customers. The Banks goal is to reduce the number of tellers and teller hours as a way of cutting costs and maximizing profits. The Bank still needs to have adequate staffing for its non-internet customers, so it needs to know what proportion of its customers are exclusively online customers.

A random sample of 200 of the Banks customers was surveyed and 65 customers were found to exclusively use online banking.

Construct a 99% confidence interval for the proportion of all bank customers that use online banking.To obtain a margin of error of 2% for the confidence interval in part a., what sample size would be required?

For this part only, assume that the Bank had not yet taken a survey. The Bank wants to know what sample size it should take to be within 2% of the true proportion, with 99% confidence

Reference no: EM13614899

Questions Cloud

A local eat-in pizza restaurant wants to investigate the : a local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. the owner of the

Spock company budgets sales of 840000 fixed costs of378000 : 1. spock company budgets sales of 840000 fixed costs of378000 and variable costs of 378000. what is the contribution

Of those 48 couples were divorced or had filed for divorce : a sociologist wanted to study if divorce rates within the first year of marriage were any different in illinois than

What is the minimum coefficient of friction between tires : a banked circular highway curve is designed for traffic moving at 56 kmh. the radius of the curve is 201 m. traffic is

Construct a 99 confidence interval for the proportion of : the first internet bank wants to encourage its customers to do all their banking online. it offers higher interest to

Laser tex inc manufactures low-end computer components : laser tex inc. manufactures low-end computer components within arelevant range of 100000 to 140000 disks per year.

Calculate the magnitude of the electric field 49 cm from : a solid sphere of radius 49 cm has a total pos- itive charge of 33.1 oc uniformly distributed throughout its volume.

Using the sample size from part a construct a 90 confidence : in an effort to lure vacationers to exotic locations several vacation packages to world-class golf destinations such as

For a major university match each cost in the following : for a major university match each cost in the following table with the activity base most appropriate to it. an

User Account

All Pages