MATH 302 Quiz 5 with Answers Part 1 of 8 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? 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 5 Set 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 4 Set 4 – Question and Answers PART 1 OF 3 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. The null and alternative hypotheses divide all possibilities into: Results from previous studies showed 79% of all high school seniors from a certain c...

ATH 302 Quiz 4 with Answers Part 1 of 3 If a teacher is trying to prove that a new method of teaching economics is more effective than a traditional one, he/she will conduct a: In an article appearing in Today’s Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75, a nutritionist selected a random sample of 20 servings of popcorn and computed the sample mean number...

MATH 302 Quiz 2 with Answers Part 1 of 6 – 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? The number of ways to choose two representatives from a committee of 13 people is In a recent study, the following data were obtained in response to the question, “Do you fav...

Math 302 Quiz 2 Part 1 of 6 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? What is the probability of drawing two queens in a row from a standard deck of cards without replacement? 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 outcomes? A gumb...

MATH 302 Quiz 2 – Question and Answers Question 1 of 20 The probability of an event and the probability of its complement always sum to: 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 . If two events are independent, what is the probability that they both occur? If two events are mutually exclusive, what is the probability that one or the other occurs? What type of probability uses ...

Math 302 Quiz 1 with Answers What is the term for a characteristic or attribute that can assume different values? A pareto chart does NOT have which of the following properties? 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? Suppose that a histogram of a data set is approximately symmetric and “bell shaped”. Approximately, what percent of the observations ...

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

MATH 302 Quiz 1 Set 1 – Question and Answers An advertisement for a car states that it is 10% more powerful than its competitor. This is an example of A scatterplot allows one to see: Which of the following are the two most commonly used measures of variability? A histogram that has a single peak and looks approximately the same to the left and right of the peak is called: What kind of relationship between x and y is demonstrated by the scatter plot below? Which of the following statements is...