Math 302 quiz 4 Study guides, Class notes & Summaries

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 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...

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...

MATH 302 Quiz 4 Question and Answers - Set 3 Part 1 of 3 - 11.0/ 11.0 Points Question 1 of 20 1.0/ 1.0 Points 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: A.confidence interval B.one-tailed test C.two-tailed test D.point estimate of the population parameter Answer Key: B Question 2 of 20 1.0/ 1.0 Points In an article appearing in Today’s Health a writer states that the average n...

MATH 302 Final Exam Questions & Answers 2022 - American University | RATED AMATH 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 th...

MATH 302 Final Exam 2022 - American University | Graded 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...

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...

MATH 302 WEEK 3 TEST A coin is flipped 30 times. Find σ². Round to 1 decimal place. Answer: 7.5 30*.5*.5 Question 2 1 / 1 point Approximately 10% of all people are left-handed. If 200 people are randomly selected, what is the expected number of left-handed people? Round to the whole number. Do not use decimals. Answer: 20 200*.10 Question 3 1 / 1 point Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the P...

MATH 302 Final Exam QUESTIONS & ANSWERS 2022 UPDATE - American University 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...