Qnt 351 week 2 connect lab latest 2016 version

Don't use plagiarized sources. Get Your Assignment on
Qnt 351 week 2 connect lab latest 2016 version
Just from $13/Page
Order Now

1.     The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience

Admissions       Probability

1050                       0.5

1300                       0.2

1540                       0.3

a.         What is the expected number of admissions for the fall semester

b.         Compute the variance and the standard deviation of the number of admissions(Round your standard deviation to 2 decimal places.



2.     The Internal Revenue Service is studying the category of charitable contributions. A sample of 22 returns is selected from young couples between the ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 22 returns, 7 had charitable contributions of more than $1,000. Suppose 6 of these returns are selected for a comprehensive audit

a.     You should use the hypergeometric distribution is appropriate. Because

b.    What is the probability exactly one of the six audited had a charitable deduction of more than $1,000

c.     What is the probability at least one of the audited returns had a charitable contribution of more than $1,000


3.     According to the “January theory,” if the stock market is up for the month of January, it will be up for the year. If it is down in January, it will be down for the year. According to an article in The Wall Street Journal, this theory held for 27 out of the last 34 years. Suppose there is no truth to this theory; that is, the probability it is either up or down is 0.5.    What is the probability this could occur by chance          Round your answer to 6 decimal places


 (for a binomial distribution with 27 success and probability 0.5


4.     Customers experiencing technical difficulty with their internet cable hookup may call an 800 number for technical support. It takes the technician between 90 seconds and 14 minutes to resolve the problem. The distribution of this support time follows the uniform distribution

a-     What are the values for a and b in minutes? (Do not round your intermediate calculaions. Round your answers to 1 decimal place

b-1.What is the mean time to resolve the problem? (Do not round your intermediate

calculations. Round your answer to 2 decimal places.

b-2 What is the standard deviation of the time? (Do not round your intermediate calculations. Round your answer to 2 decimal places.)

c-.  What percent of the problems take more than 5 minutes to resolve? (Do not round your intermediate calculations. Round your answer to 2 decimal places

d-   Suppose we wish to find the middle 50% of the problem-solving times. What are the end points of these two times? (Do not round your intermediate calculations. Round your answers to 3 decimal places.



5.     A normal population has a mean of 20 and a standard deviation of 4

a.     Compute the z value associated with 25

b.    What proportion of the population is between 20 and 25

c.     What proportion of the population is less than 18



6.     Assume that the hourly cost to operate a commercial airplane follows the normal distribution with a mean of $5,062 per hour and a standard deviation of $392.  What is the operating cost for the lowest 5% of the airplanes? (Round z value to 2 decimal places and round final answer to nearest whole dollar


7.     The manufacturer of a laser printer reports the mean number of pages a cartridge will print before it needs replacing is 12,425. The distribution of pages printed per cartridge closely follows the normal probability distribution and the standard deviation is 595 pages. The manufacturer wants to provide guidelines to potential customers as to how long they can expect a cartridge to last

How many pages should the manufacturer advertise for each cartridge if it wants to be correct 99 percent of the time? (Round z value to 2 decimal places. Round your answer to the nearest whole number


8.     A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was 5.10 minutes and the standard deviation was 0.40 minutes

a.     What fraction of the calls last between 5.10 and 5.80 minutes? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places

b.    What fraction of the calls last more than 5.80 minutes? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places

c.     What fraction of the calls last between 5.80 and 6.50 minutes? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places

d.    What fraction of the calls last between 4.50 and 6.50 minutes? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.

e.     As part of her report to the president, the director of communications would like to report the length of the longest (in duration) 3 percent of the calls. What is this time? (Round z-score computation to 2 decimal places and your final answer to 2 decimal places.


9.     A population consists of the following five values: 10, 13, 16, 19, and 21

a.     List all samples of size 3, and compute the mean of each sample. (Round your mean value to 2 decimal places.

b.    Compute the mean of the distribution of sample means and the population mean. (Round your answers to 2 decimal places




10.  The mean age at which men in the United States marry for the first time follows the normal distribution with a mean of 24.7 years. The standard deviation of the distribution is 2.8 years

For a random sample of 60 men, what is the likelihood that the age at which they were married for the first time is less than 25.2 years








Calculate the price
Make an order in advance and get the best price
Pages (550 words)
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Homework Writing Services
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Well done. I just needed to rephrase a few things, but overall good.
Customer 458067, January 29th, 2022
Business and administrative studies
Great content.
Customer 462275, April 4th, 2022
Project Management
I gave a lower rating on the service because, a notification from the support team went out but it did not come to my email address. Had I not looked earlier on the website, then I would have been penalized for not turning in my paper on time. On my profile, I have a phone# and I also have an email address. Please set up a system to text or email new messages or notifications from the writer or support team. This will ensure that the order is processed in a timely manner. With the new and upcoming technology, this seems like it should be an easy fix to have a tool built in the website to email or text notifications of changes to orders. This is no reflection to the support team. I see this as a system issue and not a support team issue.
Customer 463323, September 26th, 2022
good job
Customer 452741, March 27th, 2020
Customer 463813, March 10th, 2023
I am pleased with my paper. The support team helping me to receive this finally was phenomenal. Thank you
Customer 453993, February 10th, 2020
The writer did a phenomenal job with the Research Report #1: Data Breach Incident Analysis & Report. All expectations were met and exceeded! Thank you for delivering an amazing product and a HUGE thank you to the customer service department for sending me an email to let me know the paper was checked to quality assurance team to ensure the paper was within standards of the instructions.
Customer 452455, February 3rd, 2023
good job
Customer 456821, June 11th, 2022
A few mistakes but overall an excellent paper
Customer 453915, September 13th, 2022
Healthcare & Medical
Good work!
Customer 452441, August 6th, 2022
Very good job.
Customer 456821, April 8th, 2022
Always use Grammarly before submitting your papers.
Customer 460653, March 26th, 2022
Customer reviews in total
Current satisfaction rate
3 pages
Average paper length
Customers referred by a friend
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat