How many nickels does he need to weigh to obtain an average

Reference no: EM13202436

A study of nickels showed that the the standard deviation of the weight of nickels is 200 milligrams. A coin counter manufacturer wishes to find the 95% confidence interval for the average weight of a nickel. How many nickels does he need to weigh to obtain an average accurate to within 10 milligrams?

Reference no: EM13202436

Questions Cloud

Find an equation for the distance the pendulum : Three seconds later the pendulum hangs farthest away from the wall (83 cm). Find an equation for the distance the pendulum is from the wall at any time t.

Which of the following situations is inconsistent : Which of the following situations is inconsistent?

Why industry is confronted with government regulations : Assume that the The World Steel industry wants to expand and that its only option is a merger. Now the industry is confronted with government regulations to oversee the merger. Analyze how the different forces will come together to create a converg..

What is the irr on project : The project net working capital is equal to 10% of the next year's revenue. The tax-rate is 35%. What are the project's net cash flows for years 0-3? What is the IRR on this project?

How many nickels does he need to weigh to obtain an average : How many nickels does he need to weigh to obtain an average accurate to within 10 milligrams?

Write the shipping and handling fee s in terms of the number : Julie's mail-order CD club charges a shipping and handling fee of $2.50 plus $0.75 per CD for each order shipped. Write the shipping and handling fee S in terms of the number n of CDs in the order.

What fraction of the incidence falls on consumers : Suppose a tax on beans of $0.05 per can is levied on firms. As a result of the tax, the equilibrium price increases from $0.20 to $0.22. What fraction of the incidence falls on consumers Suppose the supply elasticity is 0.6. What must the demand e..

Find the maximum area of the patio : Forty feet of fencing are to enclose three sides of a rectangular patio. The fourth side of the patio is a side of the house, and requires no fencing.

At what monthly rate should each apartment be rented : An apartment complex can rent all 150 of its one-bedroom apartments at a monthly rate of $400. For each $10 increase in rent, 3 additional apartments are left unoccupied. At what monthly rate should each apartment be rented in order to maximize th..

User Account

All Pages