Normal probability distribution, Macroeconomics

Assignment Help:

Tennis-Warehouse recently conducted a study of long distance phone calls made by its employees. The study showed that the length of the calls has a mean of 3.2 minutes, a standard deviation of 0.50 minutes and it follows the normal probability distribution.

(a) What portion of the calls was between 3.2 and 4 minutes?

(b) What portion of the calls was more than 4 minutes?

(c) What portion of the calls was between 4 and 4.5 minutes?

(d) What portion of the calls was between 3 and 4.5 minutes?


Related Discussions:- Normal probability distribution

Causes and consequences of inflation for an economy, Question 1: Discus...

Question 1: Discuss why living standards are higher in some countries than others. Question 2: (a) How is inflation measured? (b) What are the causes and consequence

Externalies, how does government regulate externalies

how does government regulate externalies

How rates depends on maturity, How rates depends on maturity Rates depe...

How rates depends on maturity Rates depending on maturity. Even though rates with different maturity (all recalculated to a yearly rate) need not be exactly equal, they cannot

Revenue theory, calculate, a.the total revenue b.the average revenue c.the ...

calculate, a.the total revenue b.the average revenue c.the marginal revenue price 5 4 3 2 1 0 quantity 0 1 2 3 4 5.

Describe a hypothetical ideal, Design a hypothetical ideal randomized contr...

Design a hypothetical ideal randomized controlled experiment to study the effects on highway traffic deaths of wearing seat belts. Suggest some impediments to implementing this exp

Determination of all endogenous variables, Determination of all endogenous ...

Determination of all endogenous variables  We can explain how all the endogenous variables are determined in below figure:  Figure: The Keynesian model with the Phillips c

Voting for a republican candidate, Suppose that 70% of people who identify ...

Suppose that 70% of people who identify themselves as an "Independent" voter end up voting for a Republican candidate. What is the probability that out of 120 "independent" voters

What do you mean by capital flows, Q. What do you mean by Capital Flows? ...

Q. What do you mean by Capital Flows? With free capital flows, this is a very unreasonable assumption. If we domestic interest rate increase against the foreign interest rates,

What is bowed-out shape, Why does a production possibilities frontier with ...

Why does a production possibilities frontier with increasing opportunity costs have a bowed-out shape?   The curve is bowed-out because some resources are better suited for the

National income, # ???? .. difference between gdp at market price and nnp...

# ???? .. difference between gdp at market price and nnp at factor cost

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd