chapter 7, Basic Statistics

Assignment Help:
A study of long term phone calls made from general electricss corporate headquarters in fairfeild, conneticuit, revealed the length of the calls, in minutes follows the normal probability distribution. the mean length of time per call was 4.2 minutes and the standard deviation was .60 minutes.
a. what fraction of calls last between 4.2 and 5 minutes
B. what fraction of calls last more than 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 to the president the director of communications would like to report the length of the longest 4% of calls what is the time

The funds dispersed at the atm machine located near the checkout line at the krogers in union kentucky follows normal probability distribution with a mean of 4200 per day and a standard deviation of 720 per day. The machine is programmed to notify the nearby bank if the amount is very low( less than 2500) or very high( more than 6000)
A. what percent of the days will the bank be notified because the amount dispensed is very low
B. what is the percent of time will the bank be notified because the amount dispensed is to high
C. what perfcent of the time will the bank not be notified regarding the amount dispersed

The price of shares of bank of florida at the end of trading each day for the last year followed the normal distribution. Assume there were 240 trading days in the year. The mean price was 42.00 per share and the standard deviation was 2.25 per share
A. what percent of the days was the price over 45.00, How many days would you estimate
B. What percent of days was the price between 38 and 40
C. what was the stock price on the highest 15% days


Related Discussions:- chapter 7

Why is an increase in inventory shown as a negative amount?, Why is an incr...

Why is an increase in inventory shown as a negative amount? A rise in stock indicates that a company has purchased more goods than it has sold. Increasing stock requires a money

Illustrative statistics with statistics, Company statistics is the technolo...

Company statistics is the technology of good selection in the face of concern and is used in many professions such as financial statistics, econometrics, auditing, generation and f

Explain the attribute accounting, Explain the Attribute Accounting Plann...

Explain the Attribute Accounting Planning the accounting on foundation Producing, Explanation and outlining for customers is an art and if we consider as per technology, the sig

Tax, _______ 1. F''s share of income from various sources is as follows for...

_______ 1. F''s share of income from various sources is as follows for the current year: Source F''s Share of Entity''s Net Income F''s Share of Distributions ABC Partnership after

Hedging , how to record a new hedging in your books

how to record a new hedging in your books

Calculate the rates of return and standard deviations, 1. Stock A and B hav...

1. Stock A and B have the following probability distributions: ECONONOMY                    PROBABILITY                      K(A)                       K(B) Boom

Probability, Draw a tree diagram to represent all probabilities for the fol...

Draw a tree diagram to represent all probabilities for the following. a bag contains 11 red and 8 blue marbles. Two marbles are selected at random without replacement from the bag.

Adjusting entries, The notes receivable were accepted from several customer...

The notes receivable were accepted from several customers. The notes were issued on Sept. 1,2011 and will be settled together with a 20% interest on May 31, 2011.

Biostatistics, when testing hypothesis is the level of significanc the type...

when testing hypothesis is the level of significanc the type error I?

Aggressive growth fund, Define Aggressive Growth Fund: A mutual fund which ...

Define Aggressive Growth Fund: A mutual fund which is primary investment intention is substantial capital gains. The return & principal value of mutual funds fluctuate with changes

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