Sample size for estimating the population mean

Reference no: EM1315741

The annual starting salaries for college graduates with business administration degrees are believed to have a standard deviation of approximately $2000. Assume that 95% confidence interval estimate of the annual starting salary is desired. How large a sample should be taken if the desired margin of error E is:

a. E = $500? n = ________________________

b. E = $200? n = ________________________

c. E = $100? n = ________________________

Reference no: EM1315741

Questions Cloud

Properties doesn-t apply to theoretical normal distribution : Which of the given properties doesn't apply to theoretical normal distribution?

Power of the test hypothesis testing : The level of significance indicates the probability of rejecting a false null hypothesis.

Mcq from economics : Which of the following is the best example of a monopolistic competitor? Firms in a monopolistically competitive industry produce:

Compute the dealer''s expected carry income : Compute the dealer's expected carry income - Based on the above results, is it always good for the dealer when interest rates rise? How about when they fall? Please explain.

Sample size for estimating the population mean : How large a sample should be taken if the desired margin of error E is:

Determining property of standard normal distribution : Determine the special property of standard normal distribution, compared to other normal distributions?

Elasticity and total revenue : What government officials increase the price of parking ticket from $40 to $50; they are surprised that their revenue actually falls. What happened?

Evaluate the eoq and average inventory : Evaluate the EOQ, average inventory, orders per year, average daily demand, reorder point, annual ordering costs, and annual carrying costs

Producer surplus and consumer surplus : Suppose that the domestic demand and supply for hats in a small open economy are given by-Where Q denotes quantity and P denotes price.

User Account

All Pages