« previous next »

Author Question: Suppose the monthly demand for automobile tires at a tire dealer is normally distributed with a mean ... (Read 78 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jun 24, 2018
Suppose the monthly demand for automobile tires at a tire dealer is normally distributed with a mean of 250 tires and a standard deviation of 50 tires. How many tires must the store have in inventory at the beginning of each month in order to meet demand 95 percent of the time?

Question 2

In order to estimate the mean salary for a population of 500 employees, the president of a certain company selected at random a sample of 40 employees. What is the probability that the sample mean salary of the employees will be within 200 of the population mean salary?


paavo

  • Sr. Member
  • ****
  • Posts: 301
Reply #1 on: Jun 24, 2018
Answer to Question 1

332

Answer to Question 2

0.901


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species
China has relied on cheap coal to meet its demand for energy China has relied on cheap coal to meet its demand for energy
Economic recession in 2008 saw a small decrease in demand Economic recession in 2008 saw a small decrease in demand
the best tires: ALL-WEATHER TIRE the best tires: ALL-WEATHER TIRE
If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ... If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ...
Suppose a country imports televisions. The country's supply and demand curves are shown in ... Suppose a country imports televisions. The country's supply and demand curves are shown in ...
Video: Ionic bonds - role of ions in the body

For a complete list of videos, visit our video library