stat 200

UNIT 4 — MILESTONE 4 Score 16/18 You passed this Milestone 16 questions were answered correctly. 2 questions were answered incorrectly. 1 For ten students, a teacher records the following scores of two assessments, Quiz 1 and Test. Quiz 1 (x) Test (y) 15 20 12 15 10 12 14 18 10 10 8 13 6 12 15 10 16 18 13 15 Mean 11.9 14.3 Standard Deviation 3.3 3.5

16 questions were answered correctly. 2 questions were answered incorrectly. 1 For ten students, a teacher records the following scores of two assessments, Quiz 1 and Test. Quiz 1 (x) Test (y) 15 20 12 15 10 12 14 18 10 10 8 13 6 12 15 10 16 18 13 15 Mean 11.9 14.3 Standard Deviation 3.3 3.5 The correlation of Quiz 1 and Test is 0.568. Given the information below, what is the slope and y-intercept for the least-squares line of the Quiz 1 scores and Test scores? Answer choices a...

RATIONALE Using the z-chart to construct a 97% CI, this means that there is 1.5% for each tail. The lower tail would be at 0.015 and the upper tail would be at (1 - 0.015) or 0.985. The value of 0.9850 is actually on the z-table exactly. 0.9850 corresponds with a z-score of 2.17

STAT 200 Week 7 Homework Problems 10.1.2 Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create a scatter plot and find a regression equation between house value and rental income. Then use the regression equation to find the rental income a house worth $230,000 and for a house worth $400,000. Which rental income that you calculated do you think is closer to the true rental income? Why? Table ...

STAT 200 Week 1 Homework Problems Solutions, University of Maryland University College (UMUC) STAT 200 Week 1 Homework Problems 1.1.4 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 what fuel is their heating source. State the individual, variable, population, sample, parameter, and statistic Individual - Households in Connecticut. Variable - Percentage of households in Conne...

STAT 200 Week 3 Homework Problems Solutions, University of Maryland University College (UMUC) STAT 200 Week 3 Homework Problems 4.1.4 A project conducted by the Australian Federal Office of Road Safety asked people many questions about their cars. One question was the reason that a person chooses a given car, and that data is in table #4.1.4 ("Car preferences," 2013). Table #4.1.4: Reason for Choosing a Car Safety Reliability Cost Performance Comfort Looks 84 62 46 34 47 27 Find the probabili...

STAT 200 Week 5 Homework Problems Solution (Approach-1), University of Maryland University College (UMUC) STAT 200 Week 5 Homework Problems 7.1.2 According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and,

STAT 200 Assignment 3 Inferential Statistics Analysis and Writeup, University of Maryland University College (UMUC) Assignment #3: Inferential Statistics Analysis and Writeup Identifying Information Student (Full Name): Class: Stat 200 Instructor: Date: Part A: Inferential Statistics Data Analysis Plan and Computation Introduction: For this assignment, I have elected to establish a scenario of a 36 year old, married parent of three children. For the SE variables, in addition to income, I have i...