Compute normal distribution and binomial distribution

Assignment Help Basic Statistics
Reference no: EM13103575

A) The mean of a normal distribution is 400 pounds. The standard deviation is 10 pounds. a) what is the area between 415 pounds and the mean of 400 pounds? b) what is the area between the mean and 395 pounds? c) what is the probability of selecting a value at random and discovering that it has a value of less than 395 pounds?

B) Shorty's Muffler advertises they can install a new muffler in 30 minutes or less. However, the work standards department at corporate headquarters recently conducted a study and found that 20 percent of the mufflers were not installed in 30 minutes or less. The Maumee branch installed 50 last month. If the corporate report is correct: a) how many of the installations at the maumee branch would you expect more than 30 minutes? b) what is the likelihood that fewer than eight installations took more than 30 minutes? c) what is the liklihood that eight or fewer installations took more than 30 minutes? d) what is the liklihood that exactly 8 of the 50 installations took more than 30 minutes?

C) A study of long distance phone calls made from the corporate offices of the Pepsi Bottling Group, Inc., in Somers, New YOrk, showed the calls follow the normal distribution. The mean length of time per call was 4.2 minutes and the standard deviation was o.60 minutes. a) what fraction of the calls last between 4.2 and 5 minutes? b) what fraction of the calls last more thatn 5 minutes? c) what fraction of the calls last between 5 and 6 minutes? d) what fraction of the calls last between 4 and 6 minutes? e) as part of her report tot he president, the Director of Communications owuld like to report the length of the longest (in duration) 4 percent of the calls. What is this time?

Reference no: EM13103575

Questions Cloud

Differentiate laws and regulations governing public employee : Recognize and explain the differences between laws and regulations governing public employee unions and those which govern private labor unions.
Explain large hotel chains business : An article in the Wall Street Journal reported that large hotel chains such as Marriott are tending to decrease the number of hotels that they franchise to outside owners as well as increase the number the chain owns and manages itself
What is the change in the entropy of the universe : A quantity of heat is removed from a hot reservoir at absolute temperature T and then is added to a cold reservoir at absolute temperature T/2. The cold reservoir experiences an entropy increase S. What is the change in the entropy of the universe..
Damage to established ideas which lurks in these relation : dependent on advertising, is dangerous because most economists would sense “the damage to established ideas which lurks in these relationships.” Discuss illustrate what he means by this.
Compute normal distribution and binomial distribution : The mean of a normal distribution is 400 pounds. The standard deviation is 10 pounds. a) what is the area between 415 pounds and the mean of 400 pounds?
Piping company ships its only pump to national hydraulics co : Overland delays five more days before returning the pump. Mit files suit against overland, asking for compensatory and consequential damages. Will Mit recover? Explain.
Formulate and testing the appropriate hypotheses : At the 5% significance level, can the researcher reject the hypothesis that the mean reading scores of all children in the three school systems is the same? Formulate and test the appropriate hypotheses. Use the critical value approach.
What is the magnitude of the force : A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
Illustrate what was each business owner approach : Express the theories found in each case study and cite specific examples. Illustrate what was each business owner’s approach to creating high-performing teams within their company?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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