Discussion: Statistics Numerical analysis

Discussion: Statistics Numerical analysis ORDER NOW FOR CUSTOMIZED AND ORIGINAL ESSAY PAPERS ON Discussion: Statistics Numerical analysis 20 1 The data in a random sample of n = 6 is shown below. Compute the mean and then fill in the deviations column. Discussion: Statistics Numerical analysis x Deviation from the mean 19 54 15 50 28 32 The sum of deviations is. a 0 b 5 c 10 d 76 2 In the previous question, the sum of squared deviations is: a 1264 b 1268 c 1272 d 1276 3 In the previous question, the mean squared deviation for the sample data is: a 250.8 b 255.2 c 258.8 d 262.4 4 The variance of the data used for the previous three questions is: a 212.7 b 219.2 c 233.7 d 255.2 5 The mean a balances the number of observations on either side of mean value. b is always the central (or middle) data point. c is the center of gravity of the data. d balances the deviations of the data from the mean. e Both (c) and (d) are correct. 6 The following data is the grade point average (GPA) of five randomly selected E270 students. x 3.2 2.8 2.5 3.6 3.8 The variance of the sample is _______. a 0.210 b 0.234 c 0.292 d 0.321 7 Treat the set below as population data : x 114 84 152 195 105 85 The standard deviation is ________. a 39.57 b 41.55 c 43.62 d 45.80 Tom delivers packages for UPS. His daily mileage for a random sample of 10 days is as follows. x 42 51 32 31 58 54 62 43 38 54 8 The average daily miles Tom travels to deliver packages is ______. a 44.5 b 46.5 c 48.5 d 50.5 9 In the previous question, the sum of squared deviations of daily mileage is ________. a 979.7 b 1010.1 c 1060.5 d 1081.3 10 Using Tom’s daily mileage sample data, on average, Tom’s daily mileage deviates from the mean mileage by ________ a 9.12 miles b 9.86 miles c 10.03 miles d 10.86 miles 11 The following data represents the starting salaries for a sample of 42 students who graduated in 2014 with a bachelor’s degree in accounting. Data are in thousands of dollars: 53.9 54.5 59.3 60.3 63.4 64.8 58.5 55.5 68.4 57 68.8 62.7 50.4 48.3 42 63.5 61.3 57.9 45.1 62.8 45.3 49.1 41.1 53.9 40.5 49.8 44.1 61.1 56.9 64.5 46.6 57.1 59.3 46.7 65.8 67.1 40 60 62.2 63.6 52.2 57.6 Use Excel to expedite your calculations. Find the mean salary (x? = ______). Compute the sum of squares of the salary data (?x² = _______). The numerator of the quotient to compute the variance of the salary data is: _______. a ?x² = 125,620.9 Numerator of the variance quotient = 2,775.20 b ?x² = 128,184.6 Numerator of the variance quotient = 2,469.92 c ?x² = 130,800.6 Numerator of the variance quotient = 2,257.56 d ?x² = 133,470.0 Numerator of the variance quotient = 2,775.20 12 The annual salary of the staff in a state government agency are shown below. The first column shows the annual salary and the second column the frequency (the number of staff earning that salary). Annual Salary Frequency $102,000 1 85,000 2 76,000 4 50,000 10 42,000 20 35,000 8 The mean salary of agency’s staff is: a $48,800 b $55,000 c $63,200 d $65,000 13 John works in an appliance store. The following is a report of his sales effort in a given month. The report shows the price and the percent of total units sold at that price. What is the mean price of the items sold by John? Discussion: Statistics Numerical analysis Percent of total units Item Price sold A $1,200 0.05 B 1000 0.20 C 800 0.35 D 200 0.30 E 50 0.10 a x? = $650 b x? = $630 c x? = $615 d x? = $605 14 The following shows an E270 student’s scores for different course requirements and the corresponding weights assigned by the professor to each category. The scores are from the scale of 100. Requirement Score Weight Homework 90 15% Attendance 100 10% Tests 80 30% Common Final 70 45% 100% The student’s mean score is: a 85 b 84 c 82 d 79 The instructor in a Statistics for Business and Economics wants to determine the proportion of students in that class who are business majors. Let “1” stand for business major and “0” for other majors . The following is the distribution obtained from the official class roster. 1 1 0 1 1 0 1 1 0 0 1 1 1 0 1 0 1 1 1 0 1 1 1 1 0 1 1 0 1 1 0 1 1 0 1 1 1 0 1 1 1 1 0 1 0 1 1 0 0 0 1 1 1 0 1 1 15 The proportion of students who are business majors is ________. a ? = 0.7321 b ? = 0.7143 c ? = 0.6964 d ? = 0.6786 16 The variance of the above binary data is ________. a 0.1806 b 0.1985 c 0.2181 d 0.2356 17 A sample data set has n = 50 observations. The mean of the data x? = 46.5. The sum of squares ?x² = 127793. The standard deviation of the data is ______. a 24.25 b 22.05 Discussion: Statistics Numerical analysis Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10

Don't use plagiarized sources. Get Your Custom Essay on
Discussion: Statistics Numerical analysis
Get a 15% discount on this Paper
Order Essay
Quality Guaranteed

With us, you are either satisfied 100% or you get your money back-No monkey business

Check Prices
Make an order in advance and get the best price
Pages (550 words)
$0.00
*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 that being a student these days is hard. Because of this, our prices are some of the lowest on the market.

Instead, we offer perks, discounts, and free services to enhance your experience.
Sign up, place your order, and leave the rest to our professional paper writers in less than 2 minutes.
step 1
Upload assignment 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.
s
Get personalized services with My Paper Support
One writer for all your papers
You can select one writer for all your papers. This option enhances the consistency in the quality of your assignments. Select your preferred writer from the list of writers who have handledf your previous assignments
Same paper from different writers
Are you ordering the same assignment for a friend? You can get the same paper from different writers. The goal is to produce 100% unique and original papers
Copy of sources used
Our homework writers will provide you with copies of sources used on your request. Just add the option when plaing your order
What our partners say about us
We appreciate every review and are always looking for ways to grow. See what other students think about our do my paper service.
Nursing
Thank you so much for being the best website for assignment help.
Customer 452635, June 24th, 2022
Social Work and Human Services
Thank you
Customer 452559, July 2nd, 2021
ENVIRONMENT SCIENCE
EXCELLENT
Customer 452813, June 19th, 2022
Other
I requested two pages and only have one page and the second pages is references.
Customer 452475, August 22nd, 2022
Literature
Thank you , this is perfect !
Customer 452795, May 15th, 2022
Social Work and Human Services
The paper is impressive. Very professional and per the instructions
Customer 452533, May 24th, 2021
Education
Thank you so much
Customer 452631, October 5th, 2021
Education
Thank you so much for your help so I do not go insane from trying to do this. I have 2 more courses to do. Probably will be using you again.
Customer 452675, November 28th, 2021
Nursing
I appreciate all the hard work. Thank you!
Customer 452525, August 13th, 2021
Criminal Justice
Excellent Work!!!
Customer 452587, March 10th, 2022
IT, Web
Excellent job on the paper.
Customer 452885, January 25th, 2023
IT, Web
Paper was great and accomplished everything I needed.
Customer 452885, October 27th, 2022
Enjoy affordable prices and lifetime discounts
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Order Now Order in Chat

Start off on the right foot this semester. Get expert-written solutions at a 20% discount