Math 302 quiz 4 - Study guides, Class notes & Summaries

Math 302 Quiz 2 Question 1 of 20 1. The probability of an event and the probability of its complement always sum to: 2. A jar contains four white marbles, five red marbles, and six black marbles. If a marble is selected at random, find the probability that it is white or black . 3. If two events are independent, what is the probability that they both occur? 4. If two events are mutually exclusive, what is the probability that one or the other occurs? 5. What type of probability uses sa...

Math 302 Quiz 2 Part 1 of 6 1. The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the probability that he or she is a factory worker? 2. What is the probability of drawing two queens in a row from a standard deck of cards without replacement? 3. If a menu has a choice of 4 appetizers, 4 main courses, and 3 desserts, then the sample space for all possible dinners has how many outc...

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 1. Q-Mart is interested in comparing its male and female customers. Q-Mart would like to know if the amount of money spent by its female charge customers differs, on average, from the amount spent by its male charge customers.  To answer this question, an analyst collected random samples of 25 female customers and 22 male customers. Based on these samples, on average, the 25 women charge customers spent $102.23 and the 22 men charge customers spent $86.46. Moreover, the sample...

MATH 302 Quiz 5 Part 1 of 8 1. A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men.  Assume ? = 0.05.  What is the test value? 2. 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...

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 2 Part 1 of 6 - 1. A gumball machine contains 300 grape flavored balls, 400 cherry flavored balls, and 500 lemon flavored balls. What is the probability of getting 1 grape ball, 1 cherry ball, and 1 lemon ball if each ball was removed and then replaced before choosing the next from the machine? 2. The number of ways to choose two representatives from a committee of 13 people is 3. In a recent study, the following data were obtained in response to the question, “Do you favor ...

MATH 302 QUIZ 1 – QUESTION AND ANSWERS – SET 4 | AMERICAN PUBLIC UNIVERSITY | GRADED A +

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...