Probability washing machines have mean replacement time

Reference no: EM13146344

Supppose the replacement times for washing machines are normally distributed with a mean of 9.3 years and a standard deviation of 1.1 years. Find the probability that 70 randomly selected washing machines will have a mean replacement time less than 9.1 years.

Reference no: EM13146344

Questions Cloud

Calculate the molarity of an aqueous naoh solution : calculate the molarity of an aqueous NaOH solution if 32 mL of it is required to titrate .6789 grams of oxalic acid to a phenolphthalein end point.

What is the profit-maximizing rate of output for the firm : Assume that the price of silk ties in a perfectly competitive market is $19 and that the typical firm confronts the following costs: Quantity (ties per day) 0 1 2 3 4 5 6 7 8 9 10, Total cost $10 $17 $26 $37 $50 $65 $82 $101 $122 $145 $170

What are the proteins and the positions of the sequences : What are the proteins and the positions of the sequences they bind involved in transcription of the Lactose operon of Escherichia coli?

Problem related to maintain an ending inventory : There are 300 packages in the beginning inventory on the first of January. Also, the company wishes to maintain an ending inventory of 10 percent of the next month's sales.

Probability washing machines have mean replacement time : Find the probability that 70 randomly selected washing machines will have a mean replacement time less than 9.1 years.

What impact is invader having on native species populations : One threat to populations within an ecosystem is an invasive species. In the American Southwest, certain areas are being invaded by non-native, Africanized Honey Bees. This aggressive, non native bee is a prolific breeder and some estimate that it..

Define normal glucose levels in the blood : normal glucose levels in the blood are from 70 to 10 mg glucose per 100 mL of blood. If the level falls too low, there can be brain damage.

Conduct a warrantless search of a car interior : Under what circumstances may officers conduct a warrantless search of a car interior when the occupant has just been arrested? Please explain detail and give proper Bluebook citation references to your source. Remember this is an essay not a sh..

What is the advantage of closed stomata to a plant : What is the advantage of closed stomata to a plant when water is in short supply? What are the disadvantages?

User Account

All Pages