math

A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.)
(a) If a truck can carry 3940 lb. and 25 appliances need to be picked up, what is the probability that the 25 appliances will have an aggregate weight greater than the truck's capacity? Assume that the 25 appliances represent a random sample.

(b) If the truck has a capacity of 7810 lb., what is the probability that it will be able to carry the entire lot of 25 appliances?

1. 👍 0
2. 👎 1
3. 👁 55

Similar Questions

1. Statistics help

A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb.

asked by DeeDee7 on June 14, 2013
2. Math help

A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb.

asked by Gayle 79 on June 17, 2013
3. Math, statistics

A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 4070 lb.

asked by hanjay on June 8, 2014
4. Math Help

A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb.

asked by TOM7 on June 19, 2013
5. Economics

4. Deregulation and the Cost of Trucking. Suppose the government initially limits the number of trucking firms that can haul freight. The market for truck freight is served by a single firm that produces five million ton-miles of

asked by Student on February 14, 2016
6. Math - Linear Equations

"A trucking firm has 8 trucks, some carry a load of 10 tonnes and others carry a load of 5 tonnes. When all 8 trucks are carrying a full load, the total load is 70 tonnes." Develop and solve simultaneous equations to determine the

asked by Kiirsty on May 23, 2014
7. Algebra 2

you purchase 12 packages of wrapping paper. large packages cost \$7 & small cost \$4.50. Write & simplify an expression that represents the total cost if n of the 12 packages are large

asked by Andri on June 15, 2014
8. Physics

Two crates are pulled across a floor together, as shown in the diagram. The co-efficient of kinetic friction between the boxes and the surface is μ = 0.25. Calculate: a. the acceleration of the crates. b. the contact force

asked by Megan on April 2, 2019
9. Economics

When Burton Cummings graduated with honors from the Canadian Trucking Academy, his father gave him a \$350,000 tractor-trailer rig. Recently, Burton was boasting to some fellow truckers that his revenues were typically \$25,000 per