Typing speed on a new kind of keyboard for people at a certain stage in their training
Question:
Typing speed on a new kind of keyboard for people at a certain stage in their training program is approximately normally distributed. The probability that the speed of a given trainee will be greater than 65 words per minute is 0.45. The probability that the speed will be more than 70 words per minute is 0.15. Find the mean and the standard deviation of typing speed.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 56% (16 reviews)
XN0 PX65 045 Z1 0126 ...View the full answer
Answered By
PALASH JHANWAR
I am a Chartered Accountant with AIR 45 in CA - IPCC. I am a Merit Holder ( B.Com ). The following is my educational details.
PLEASE ACCESS MY RESUME FROM THE FOLLOWING LINK: https://drive.google.com/file/d/1hYR1uch-ff6MRC_cDB07K6VqY9kQ3SFL/view?usp=sharing
3.80+
3+ Reviews
10+ Question Solved
Related Book For
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
Question Posted:
Students also viewed these Statistics questions
-
Find the mean and the standard deviation for the distribution of heads coins in the case of 10 throws of an unbiased coin. Find the probability that a single toss will give a value within one...
-
The length of human pregnancies is approximately normally distributed with mean = 266 days and standard deviation = 16 days. (a) What is the probability a randomly selected pregnancy lasts less...
-
The daily price of coffee is approximately normally distributed over a period of 15 days with a mean in April 2007 of $1.35 per pound (on the wholesale market) and standard deviation of $0.15. Find a...
-
A 15 mm 15 mm silicon chip is mounted such that the edges are flush in a substrate. The chip dissipates 1.4 W of power uniformly, while air at 20C (1 atm) with a velocity of 25 m/s is used to cool...
-
Tom and Al are the only two members of a household. Each gets satisfaction from three things: his income, his safety at work, and his income relative to his roommate's income. Suppose Tom and Al must...
-
a) How can you quickly assess the security posture of your Windows PC? b) What provides a quick summary of security components needed to harden a client PC? c) Why are multiple types of protection...
-
Describe the SECs role in regulating securities transactions in the United States. Discuss the mission and purpose of the SEC.
-
Suppose that you have been given a summer job at Fairwings Avionics, a company that manufactures sophisticated radar sets for commercial aircraft. The company, which is privately owned, has...
-
1. In figure, two identical particles each of mass m are tied together with an inextensible string. This is pulled at its centre with a constant force F. If the whole system lies on a smooth...
-
The image on the left in the figure below consists of alternating stripes of black/white, each stripe being two pixels wide. The image on the right is the Fourier spectrum of the image on the left,...
-
Total annual textbook sales in a certain discipline are normally distributed. Forty-five percent of the time, sales are above 671,000 copies, and 10% of the time, sales are above 712,000 copies. Find...
-
The number of people responding to a mailed information brochure on cruises of the Royal Viking Line through an agency in San Francisco is approximately normally distributed. The agency found that...
-
Solids and liquids resist being compressed. They are not totally incompressible, but it takes large forces to compress them even slightly. If it is true that matter consists of atoms, what can you...
-
Is a layoff, or downsizing, ever the best option to resolve a projected surplus in an organization? Justify your answer.
-
Kamal Enterprises Ltd., a garment manufacturer in Mumbai, India, is negotiating to purchase a fully automated sewing machine. This machine can be programmed to sew and is expected to reduce...
-
Suppose that one of the inducements provided by Thailand to woo Scandisk into setting up a local production facility is a 10-year, $10 million loan at 3% interest. The principal is to be repaid at...
-
How much overtime is reasonable in a week? How long can the company expect workers to continue to work overtime before they see employee stress levels getting significantly higher than normal?
-
EJH Company has a market capitalization of $1.3 billion and 10 million shares outstanding. It plans to distribute $120 million through an open market repurchase. Assuming perfect capital markets: a....
-
You have two thermocouples. One is a K type and the other is a T type. In general, what do these letter designations tell you?
-
The company manufactures three products: wooden chairs, tables and dressers. AFC started off as a 'Mom & Pop' shop but has grown rapidly. AFC uses one assembly line to build all three products,...
-
A credit card company has a fraud-detection service that determines if a card has any unusual activity. The company maintains a database of daily charges on a customer's credit card. Days when the...
-
A survey of 50 randomly selected full-time Joliet Junior College students was conducted during the Fall 2010 semester. In the survey, the students were asked to disclose their weekly income from...
-
A survey of 40 randomly selected full-time Joliet Junior College students was conducted in the Fall 2010 semester. In the survey, the students were asked to disclose their weekly spending on...
-
You are a supervisor at your company. You've overheard Employee A making offensive comments to other employees, and Employee B has complained about these comments. You've given Employee A a verbal...
-
What is the probability of developing and dying from cancer today?
-
On January 1, 2024, Majestic Mantles leased a lathe from Equipment Leasing under a finance lease. Lease payments are made annually. Title does not transfer to the lessee and there is no purchase...
Study smarter with the SolutionInn App