ch 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

2.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

3. 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:- ch 7

Cost accounting, what is the relationship of cost accounting to financial a...

what is the relationship of cost accounting to financial and management accounting?

Journal entries on perpetual inventory system, I have to set up a chart for...

I have to set up a chart for a perpetual system. How Do I do this with credit card sales?

Calculate the marginals for the rows and columns, (1) Public health schol...

(1) Public health scholars have noted a relationship between nancial well-being follow-ing catastrophe and rates of depression. Weber, Kenny, and Bratton (2010) examine this rela

Want to get job, I am Hussain and I have done master in Statistics. Current...

I am Hussain and I have done master in Statistics. Currently I am doing Mphil Statistics from Pakistan. I want to get online Statistics Tutor job. So contact with me as soon as pos

Revenue recognition assigment, When selling books through insaltalments and...

When selling books through insaltalments and internet, what is an alternative selling method for better revenue recording?

How to stretch or shrink a graph, Q. How to stretch or shrink a graph? ...

Q. How to stretch or shrink a graph? Ans. If you have the equation of a graph, you can stretch or shrink the graph, in either the x or the y direction, just by multiplying

HYPOTHESIS, HOW TO FIND NULL HYPOTHESIS

HOW TO FIND NULL HYPOTHESIS

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