Survey of statistical concepts, data analysis, designed and observational studies and statistical models. Dr. Brian Killough. Learn 2 stat 200 with free interactive flashcards. Cumulative In this course, you will develop a basic understanding of descriptive and inferential statistics. STAT200 - Assignment #1: Descriptive Statistics Data Analysis Plan (new 2019 version) An introduction to statistics. Explain your answer for full credit. The 10 scores are shown in the table below: 95 . Focus is on enhancing communication and critical thinking skills. If you are a student using Post 9/11 benefits, please contact an advisor at 800-939-8682 to determine if you can apply both benefits. HINT: DO NOT use EXCEL to calculate quartiles, as the method used by EXCEL is not the same as the (c – 2 points) What percent of the checkout times are between 8.0 and 9.9 minutes? The service charge for a dishonored check is $30. UMUC Stat Club is sending a delegate of 2 members to attend the 2015 Joint Statistical Meeting in Seattle. A STAT 200 instructor believes that the average quiz score is a good predictor offinal exam score. A random sample of 10 students produced the following data where x is theaverage quizscore and y is the final exam score.x 80 50 60 100 70 85 40 65 75 90y 72 75 65 90 60 85 50 60 75 95(a) Find an equation of the least squares regression line. and the mean or median can be used to measure central tendency. This type of sampling is called: (i) cluster. etc) are equal to one another. Lane et al,pg 63 #10: For the numbers 1, 2, 4, 16, compute the following: 3. STAT 200 Assignment 1 SUMMER 2020-STAT200 - Assignment #1 Descriptive Statistics Data Analysis Plan University of Maryland University College UMUC. See page 29. the mean. Just make sure you put … The objective is to assess the validity of statistical conclusions; organize, summarize, interpret, and present data using graphical and tabular representations; and apply principles of inferential statistics. (d - 2 points) Standard Deviation Excel =STDEV.S(A2:A8) = 17347. students is randomly chosen. 4.0 - 5.9 5 5/16 = 0.31 5 HINT: This is tougher than it looks. STAT 200 STAT200 Quiz 3 Answers (UMUC) 1. 1.29 * 2.1 = X – 5. They may be changed, or other charges may be included, as a result of the Board of Regents decisions. (d - 1 point) If the researcher selects the first 20 people that walk through the door, what type of sampling Think about this one ... it is tricky. (Required within the first 6 credits of graduate study for all new graduate students, except those in programs requiring CBR, DCL, or PRO 600.) (a – 2 points) What is the mean checkout time? 87 . Suppose that data point was incorrect and is also 50. (Problem 8) You are playing a game with 3 prizes hidden behind 4 doors. Include equations, a table or For more information, contact your academic advisor. STAT 200 Statistical Analysis credit: 3 Hours. around the mean. 14 pages MATH 111, MGMT 316, PSYC 200, SOCY 201, STAT 100, STAT 200, STAT 225, or STAT 230. Write a headline for your review here: Write your review here: Your email: We promise to never spam you, and just use your email address to identify you as a valid customer. (Problem 10) TRUE or FALSE. during the store’s busiest time are as follows: 4.8, 8.5, 6.2, 7.8, 10.7, 9.3, 12.4, 5.8, 9.7, 8.8, 6.7, 13. 1..29 = X-5.3/2. Justify for full credit. (Problem 12) Human heights are known to be normally distributed. method used in our text. See an example on page-151. the actual checkout time was 13.8 minutes. $52000, $58000, and $88,000. (b - 3 points) What is the probability of spending more than 5 days in recovery after a surgical procedure? The students took a 30-minute exercise every day for 6 months. Lane et al,pg 62 #3: If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Read the latest magazines about UMUC STAT 200 STAT200 Week 4 Homework Assignments Solutions and discover magazines on Yumpu.com More information about education benefits offered by VA is available on the U.S. government GI Bill website. This discount cannot be combined with the Completion Scholarship for Maryland community college students or the Pennsylvania Completion Scholarship. in your table due to 3 winning prizes and one losing prize. How many different ways can the delegate be selected? EXCEL work, to show how you found your solution. (d – 2 points) Will the median of the dataset increase, decrease or remain the same and why? (c - 3 points) If the variance from a set of data is zero, then all of the data values must be identical. 47 . 2. Access study documents, get answers to your study questions, and connect with real tutors for STAT 200 : Elementary Statistics at University Of Maryland, University College. Win $20 0.25 5 Statistical computing using a statistical package such as R or a spreadsheet. The (incomplete) results Relative Men have a mean height of 70 Win $10 0.25 2. The UCSP 615 requirement may be waived if you previously earned a graduate degree from a regionally accredited institution. Win $100 0.25 25 HINT: This one is quite easy, so don't overthink it. = 1 – P(X-5.3/2.1≤2-5.3/2.1) 6.0 - 7.9 2 2/16 = 0.13 7 Question Description. Product Reviews. = 1 – P(X-5.3/2.1≤5-5.3/2.1) Female Data Male Data A group of 30 graduating The discount for Federal employees and their spouses and eligible dependents will be applied to out-of-state tuition and specialty graduate programs. A STAT 200 professor took a sample of 10 midterm exam scores from a class of 30 students. CookMyProject. Tuition rates are subject to the approval of the University System of Maryland Board of Regents. (c - 2 points) Mode All values appeared once P(X>2) = 1 – P(X≤2) There are 10 qualified candidates. Find the following and show all work. 5.3 days and population standard deviation of 2.1 days. True, because this shows that data lie on the same line and all the observations (random variable, mean, (b - 1 point) What is the sample? 2.709 = X – 5. The objective is to assess the validity of statistical conclusions; organize, summarize, interpret, and present data using graphical and tabular representations; and apply principles of inferential statistics. Please sign in or register to post comments. 2. 9. (6,5), (6,6). = 0. (Problem 9) Suppose that 95% of graduating students attend their graduation. np = 0.95 * 30 = 28.5 = 29 10.0 - 11.9 1 1/16 = 0.06 12 Lose -$20 0.25 -. 8.0-9. = 1 – 0. Topics include methods of sampling; percentiles; concepts of probability; probability distributions; normal, t-, and chi-square distributions; confidence intervals; hypothesis testing of one and two means; proportions; binomial experiments; sample size calculations; correlation; regression; and analysis of variance (ANOVA). (d – 2 points) What is the value for the 75% percentile (third quartile) Q3? (a - 3 points) What is the probability of spending less than 2 days in recovery after a surgical procedure? 4.8 + 8.5 + 6.2 + 7.8 + 10.7 + 9.3 + 12.4 + 5.8 + 9.7 + 8.8 + 6.7 + 13.5 = 104.2/12 = 8. Simple Random sampling. 67 . Regular tuition rates apply for cooperative education, course challenge examinations, and EXCEL 301. (b – 2 points) What is the probability of successes (p)? Excel = BINOM.DIST(25,30,0.95,FALSE) = 0. Record your answers and work in this sheet and submit as a single pdf document via LEO … To estimate the percentage of households in Connecticut which use fuel oil as a heating source, a researcher collects information from 1000 Connecticut households about … There should be 4 rows of data STAT 200 Week 1 Homework Problems. UMUC STAT-200 Midterm Exam (Problem 1) A random sample of 16 customers was chosen in a supermarket. 70 . (Problem 3) A fitness center is interested in the mean amount of time a group of clients exercise each STAT 200 at the University of Maryland University College (UMUC) in Adelphi, Maryland. Answer the following questions. (c – 2 points) What is the probability of failures (q)? View important information about the education debt, earnings, and completion rates of students enrolled in certificate programs. Golden ID benefits may not be applied to fees, noncredit courses, specialty graduate programs, or doctoral programs. View All Products. Let X be the number of students that attend graduation. P(X>5) = 1 – P(X≤5) One prize is worth $100, 72 ... A random sample of 5 UMUC students was chosen. STAT 200 MidTerm Exam Answers (2018) (UMUC) o If there is an Excel file with data sets available, you can show your work in the Excel file. (e – 2 points) What is the probability that exactly 25 students attend graduation? Value of Z is found by using the standard normal table Requests for services (for example, transcripts, diplomas, registration) will be denied until all debts are paid. Lane et al,pg 64 #17. An overview of the skills needed for academic and professional success. (4 points) An important component in the evaluating confidence interval and performing hypothesis test is the critical value, and the critical value depends on what distribution we should apply. Explain. Assume the largest recorded checkout time was 12.8 minutes. Tuition for active-duty military; members of the Selected Reserves, National Guard, and the Commissioned Corps of the U.S. Public Health Service and National Oceanic and Atmospheric Administration; and the spouses and dependents of these student groups will be the applicable military or specialty rate. 85 . (Problem 1) A random sample of 16 customers was chosen in a supermarket. for their checkout times are shown in the table below. Students may receive credit for only one of the following courses: BEHS 202, BEHS 302, BMGT 230, ECON 321, GNST 201, MATH 111, MGMT 316, PSYC 200, SOCY 201, STAT 100, STAT 200, STAT 225, or STAT 230. n = 30 (b – 2 points) What is the value for the 25% percentile (first quartile) Q1? Both have a population standard deviation of 3 inches. 12.0 - 13.9 4 4/16 = 0.25 16 True, because the standard deviation is smaller, which shows that the data is closely clustered = 0. P = ( Second Die > 4/ First Die and even number, 2,4,6) Focus is on selecting and applying appropriate statistical tests and determining reasonable inferences and predictions from a set of data. The (incomplete) results for their checkout times are shown in the table below. APA style and resources are also addressed. The discount for Federal employees and their spouses and eligible dependents will be applied to out-of-state tuition and specialty graduate programs. The 80th percentile could be based on 3 different definitions, so you wouldn’t know exactly how it was calculated without further information. 0.06+0.25 = 0.31 = 31% UMUC STAT-200 Homework Assignments Week #1 - SOLUTIONS Dr. Brian Killough Lane - Chapter 1: 3,10,17,18 3. = 1- P(Z≤ - 1.57) 4:131 LTE learn.umuc.edu STAT 200 Week 2 Homework Problems 2.2.2 The median incomes of females in each state of the United States, including the District of Columbia and Puerto Rico, are given in table #2.2.10 (Median income of, 2013) Create a frequency distribution, relative frequency distribution, and cumulative frequency distribution using 7 classes. UMUC STAT-200 Test #2. Undergraduate and standard graduate program tuition for students who meet the criteria for Maryland residency will be the applicable in-state rate. 25% The distribution of Positive skews also have a longer whisker in the positive direction compared to the negative direction (see Page 92). 8.0 - 9.9 4 0.25 11 It is best to find the quartile values using the instructions on page 99 of your text. 2 STAT 200 Spring 2019 Name: Steven Jenkins Dr. K. Thengumthara Midterm Examination Answer Sheet *****Instructions: This is an open-book exam. Win or Lose x P(x) xP(x) Answer the following: (a – 2 points) What are the number of trials (n)? Lane et al,pg 62 #3: If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? 100% (6) Pages: 14 year: 17/18. Write Your Own Review. P(x>68) = 1 – P(x≤68), Copyright © 2021 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Create a SQL script containing your data definition language. does this represent? © 2020 University of Maryland Global Campus. STAT 200: Introduction to Statistics Final Examination, Fall 2016 OL4 Page 3 of 8 (ii) convenience (iii) systematic (iv) stratified (b - 3 points) Given that a normal distribution has a mean of 50 and standard deviation of 5. inches and females a mean height of 64 inches. the Election Day, UMUC News Club organized an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left those polling stations. UMUC; STAT 200; Vendors Other Products. (Problem 5) The checkout times (in minutes) for 12 randomly selected customers at a large supermarket Label the Q1, Median, and Q3 locations. Standard Deviation: σ = 3 Standard Deviation: σ = 3, (a - 2 points) Find the 1st Quartile (Q1) of the male height distribution. It does not apply to doctoral programs. (b – 2 points) What percent of the checkout times are 10 minutes or more? (Problem 2) Using the data from Problem # ... (a – 2 points) Construct a histogram using the frequency data ... you may draw it by hand, if desired. The mean and 0.13+0.31 = 0.44 = 44%. A survey will be conducted of 20 clients. P(Z≤x) = 0. X = 2.709 + 5. q = 1 – 0.95 = 0. True or False. All rights reserved. =8. The amount of time a client exercises each week. Imagine you are in a game show. P = (2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (6,1), (6,2), (6,3), (6,4), 4, given that the first die is an even number? 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