Math 302 quiz 2 - Study guides, Class notes & Summaries

MATH 302 Quiz 1 Part 1 of 3 1. A histogram that is positively skewed is also called 2. Researchers may gain insight into the characteristics of a population by examining a 3. A variable is classified as ordinal if: 4. A sample of 20 observations has a standard deviation of 4. The sum of the squared deviations from the sample mean is: 5. A pareto chart does NOT have which of the following properties? 6. What type of graph is the figure below? 7. Numerical variables can be subdivided i...

Math 302 quiz 1 1. What is the term for a characteristic or attribute that can assume different values? 2. A pareto chart does NOT have which of the following properties? 3. Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately what percent of the observations are within two standard deviations of the mean? 4. Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately, what percent of the observations ar...

MATH 302 QUIZ 4 – QUESTION AND ANSWERS SET 2 | MATH 302 QUIZ 4 WEEK 4 KNOWLEDGE CHECK – QUESTION AND ANSWERS | AMERICAN PUBLIC UNIVERSITY

MATH 302 QUIZ 5 – QUESTION AND ANSWERS – SET 2 | 100% VERIFIED Q&AS | AMERICAN PUBLIC UNIVERSITY (GRADED A+)

MATH 302 QUIZ 1 – QUESTION AND ANSWERS – SET 2; LATEST UPDATE

MATH 302 Quiz 4 Part 1 of 3 - 1. A manufacturer of flashlight batteries took a sample of 13 batteries from a day’s production and used them continuously until they failed to work. The life lengths of the batteries, in hours, until they failed were: 342, 426, 317, 545, 264, 451, 1049, 631, 512, 266, 492, 562, and 298.  2. The null and alternative hypotheses divide all possibilities into: 3. Results from previous studies showed 79% of all high school seniors from a certain city plan to at...

MATH 302 Quiz 3 - Question and Answers Find the area under the standard normal distribution to the left of z = -1.05. Round answer to 4 decimal places. Answer: .2299 Answer Key:0.1469|.1469 Feedback: In Excel, =NORM.S.DIST(-1.05,TRUE) Question 2 of 20 1.0/ 1.0 Points Find P(-1.96 ≤ Z ≤ 1.96). Round answer to 2 decimal places. Answer: .95 Answer Key:0.95|.95 Feedback: In Excel, =NORM.S.DIST(1.96,TRUE)-NORM.S.DIST(-1.96,TRUE) Question 3 of 20 1.0/ 1.0 Points Find P(1.31 &l...

MATH 302 Quiz 5 Question 1 of 17 Multiple myeloma or blood plasma cancer is characterized by increased blood vessel formulation in the bone marrow that is a prognostic factor in survival. One treatment approach used for multiple myeloma is stem cell transplantation with the patient’s own stem cells. The following data represent the bone marrow microvessel density for a sample of 7 patients who had a complete response to a stem cell transplant as measured by blood and urine tests. Two measure...

MATH 302 Quiz 3 1. The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 24.6 mpg and a standard deviation of 11.2 mpg.  If 30 such cars are tested, what is the probability the average mpg achieved by these 30 cars will be greater than 27? 2. A sample of 9 production managers with over 15 years of experience has an average salary of $71,000 and a sample standard deviation of $18,000. Assuming that t...

MATH 302 Final Exam 2022 - American University | RATED A+MATH 302 Final Exam 2022 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more)variables C. The length of the box equals the range of the data. D. The right and left of the box are the third and first qu...