Mathematics problem solving

(1.4) 5. A weather report states that it will rain in Davenport with a probabili

(1.4) 5. A weather report states that it will rain in Davenport with a probability of 25 percent, and another report says it will rain in both Davenport and Cedar Rapids with a pr…

(1.5 points) Answer: 2. (1.5 points) An investor wants to invest in corporate bo

(1.5 points) Answer: 2. (1.5 points) An investor wants to invest in corporate bonds that are rated AAA, A and B. The lower rated ones pay higher interest, but pose a higher risk a…

(1.5 points) If the standard deviation of hole diameter exceeds 0.01 millimeters

(1.5 points) If the standard deviation of hole diameter exceeds 0.01 millimeters, there is an unacceptably high probability that the rivet will not fit. Suppose that n = 15 and s …

(1.5 points) The Survey of Study Habits and Attitudes (SSHA) is a psychological

(1.5 points) The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school and study habits of students. Scores rang…

(1.5 pts) 7. In each of the following statements, identify the boldface number a

(1.5 pts) 7. In each of the following statements, identify the boldface number as the value of a (0.5 pts.) a) A toy manufacturer issued a recall on a small wooden toy car because…

(1.5 pts) 7. In each of the following statements, identify the boldface number a

(1.5 pts) 7. In each of the following statements, identify the boldface number as the value of a (0.5 pts.) a) A toy manufacturer issued a recall on a small wooden toy car because…

(1.6) 8. Medical tests for the presence of drags are not perfect. They often giv

(1.6) 8. Medical tests for the presence of drags are not perfect. They often give false positice results where the test indicates the presence of the drug in a person who has not …

(1.95) Improving SAT scores. The National Education Longitudinal Survey (NELS) t

(1.95) Improving SAT scores. The National Education Longitudinal Survey (NELS) tracks a nationally representative sample of U.S. students from eighth grade through high school and…

(1.99 )Pigeon diet study. The Australian Journal of Zoology (Vol. 43, 1995) repo

(1.99 )Pigeon diet study. The Australian Journal of Zoology (Vol. 43, 1995) reported on a study of the diets and water requirements of spinifex pigeons. Sixteen pigeons were captu…

(10 bonus points) Research the physics of free fall with air resistance, and der

(10 bonus points) Research the physics of free fall with air resistance, and derive for yourself 3. a similar DE to the one given. They are based on F ma, gravity, and air resista…

(10 pes) The time required to assemble an electronic component is normally wwith

(10 pes) The time required to assemble an electronic component is normally wwith a mean of 15 minutes and a standard deviation of 3 minutes. What is the prob a component is assemb…

(10 points each) An enzyme-linked immunosorbent assay (ELISA) test is performed

(10 points each) An enzyme-linked immunosorbent assay (ELISA) test is performed to determine if the human immunodeficiency virus (HIV) is present in the blood of indicates HIV 99%…

(10 points each) Note: This is adapted from a Google interview question. I have

(10 points each) Note: This is adapted from a Google interview question. I have a jar with 100 quarters. Most of them are regular (fair) quarters, but 7 of them are fake! These 7 …

(10 points) (10 points) We will now prove the following statement found in Probl

(10 points) (10 points) We will now prove the following statement found in Problem (3): For each integer n that is greater than 1, if a is the smallest positive factor of n that i…

(10 points) (Note: parts (a) and (b) are not related, the Ci in each part are no

(10 points) (Note: parts (a) and (b) are not related, the Ci in each part are not the same.) 3. (10 points) (Note: parts (a) and (b) are not related, the Ci in each part are not t…

(10 points) 70% of the employees in a specialized department of a large software

(10 points) 70% of the employees in a specialized department of a large software firm are computer science graduates. A project team is made up of 10 employees Part a) What is the…

(10 points) 8. True or false (circle one Annihilators are used in conjunction wi

(10 points) 8. True or false (circle one Annihilators are used in conjunction with the method of undetermined coefficients to solve certain nonhomogeneous linear differential equa…

(10 points) A manager wishes to determine whether the mean times required to com

(10 points) A manager wishes to determine whether the mean times required to complete a certain task differ for the three levels of employee training. He randomly selected 10 empl…

(10 points) A manufacturer of ceramic insulators conducts an experiment on ten v

(10 points) A manufacturer of ceramic insulators conducts an experiment on ten variations of its production process. The engineers perform a hypothesis test on each process, again…

(10 points) An air defense system consists of n independent radar sets over a gi

(10 points) An air defense system consists of n independent radar sets over a given area. Assume each radar has a probability of 0.9 of detecting an airplane. The system declares …

(10 points) Answer the following questions: (a) (5 points) An animal shelter has

(10 points) Answer the following questions: (a) (5 points) An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, live to be 7 years or older. Of th…

(10 points) Download the “State QPI 2004 2013” Excel file from the class D2L sit

(10 points) Download the “State QPI 2004 2013” Excel file from the class D2L site. Use the following method to select the data for one state: find the position of the first letter…

(10 points) Download the “State QPI 2004 2013” Excel file from the class D2L sit

(10 points) Download the “State QPI 2004 2013” Excel file from the class D2L site. Use the following method to select the data for one state: find the position of the first letter…

(10 points) Download the “drugs” Excel file from the class D2L page. This data s

(10 points) Download the “drugs” Excel file from the class D2L page. This data set is from an article by Frederick Schutt and Peter VanBergeijk in which they attempted to see if t…

(10 points) Download the “drugs” Excel file from the class D2L page. This data s

(10 points) Download the “drugs” Excel file from the class D2L page. This data set is from an article by Frederick Schutt and Peter VanBergeijk in which they attempted to see if t…

(10 points) For the given z values in the top row of the table, the correspondin

(10 points) For the given z values in the top row of the table, the corresponding output values of functions f and g are shown in the rows below. r -3 -2 -1 0 1 2 3 f(x) 9 2 6 -4 …

(10 points) Of the microprocessors manufactured by a certain process, 7% are def

(10 points) Of the microprocessors manufactured by a certain process, 7% are defective. Five microprocessors are chosen at random. Assume they function independently. 1, a. What i…

(10 points) On the next page, I have included output from SPSS showing a statist

(10 points) On the next page, I have included output from SPSS showing a statistical test comparing soil pH values from soils of five different sites. Your job is to interpret the…

(10 points) Suppose that only 2% of individuals undergoing a particular medical

(10 points) Suppose that only 2% of individuals undergoing a particular medical test have the disease that the test is indending to identify. If an individual has the disease the …

(10 points) Suppose there are two student assistants working as typists in the m

(10 points) Suppose there are two student assistants working as typists in the main office of the Statistics & Applied Probability Department at UCSB. The number of typos per …

(10 points) The scores of students on the ACT college entrance examinations in a

(10 points) The scores of students on the ACT college entrance examinations in a recent year had a normal distribution with mean -18.4 and standard deviation = 5.6. (a) What is th…

(10 points) The scores of students on the SAT college entrance examinations at a

(10 points) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean 531.4 and standard deviation -25.3. (a) Wh…

(10 points) True or false. Justify your answer for full credit. (2 points each)

(10 points) True or false. Justify your answer for full credit. (2 points each) a. The maximum value of the data set in problem 3 above is 107. If the analyst makes one mistake on…

(10 points) You are given three sequences fan h, which satisfies ao n, an 0 for

(10 points) You are given three sequences fan h, which satisfies ao n, an 0 for all n EN and lim an w; n- 00 {bn), which satisfies 0 bn for all n EN and X b e; {cn which satisfies…

(10 points)Suppose a simple random sample of 36 McDonald\'s breakfast foods are

(10 points)Suppose a simple random sample of 36 McDonald's breakfast foods are purchased. Of interest is the mean number of grams of saturated fat for this sample of 36 McDonald's…

(10 pts total) A group of criminologists compared the homicide rates in 7 states

(10 pts total) A group of criminologists compared the homicide rates in 7 states with capital punishment to the homicide rates in 7 states without capital punishment. Obviously st…

(10 pts) (See textbook page 82 for definitions of the economie funetions used in

(10 pts) (See textbook page 82 for definitions of the economie funetions used in this problem) The cost, in dollars, for a company to produce x widgets is given by ax)=5250+700r f…

(10 pts) Alice and Bob are playing a dart game. Each person shoots 3 times. Assu

(10 pts) Alice and Bob are playing a dart game. Each person shoots 3 times. Assume all shots are independent and Alice hits the target with probability 0.8 for each shot, while Bo…

(10 pts) Select two of the single gene traits (not a disease) that are commonly

(10 pts) Select two of the single gene traits (not a disease) that are commonly used to illustrate human genetic variation in introductory genetics exercises, e.g., left handednes…

(10 pts.) The population mean for the Elementary Tenacity Test (ETT) is 150 with

(10 pts.) The population mean for the Elementary Tenacity Test (ETT) is 150 with x =25. Based upon a recent study of a group of elementary school children participating in a schoo…

(10%) Basket #1 holds (b-3) eggs; basket #2 holds 2 eggs; and basket #3 holds 1

(10%) Basket #1 holds (b-3) eggs; basket #2 holds 2 eggs; and basket #3 holds 1 egg. In how many ways, exactly, can b eggs be sorted into the baskets? (For example, if b = 5 and t…

(10%) Basket #1 holds (b-3) eggs; basket #2 holds 2 eggs; and basket #3 holds 1

(10%) Basket #1 holds (b-3) eggs; basket #2 holds 2 eggs; and basket #3 holds 1 egg. In how many ways, exactly, can b eggs be sorted into the baskets? (For example, if b = 5 and t…

(10%) Superheated steam at 10 MPa and 480?C leaves the steam generator of a vapo

(10%) Superheated steam at 10 MPa and 480?C leaves the steam generator of a vapor power plant. The power plant is operated by a Rankine cycle (may not be ideal). The pressure at t…

(10) A mortgage holding company has found that 2% of its mortgage holders defaul

(10) A mortgage holding company has found that 2% of its mortgage holders default on their mortgage and lose the property. Furthermore, 90% of those who default are late on at lea…

(10) A small business buys a the value of the co business uses linear time. This

(10) A small business buys a the value of the co business uses linear time. This means that if V is the value of the computer at time t,t( computer for $2900 at time tO.After t 4 …

(10) An investment strategy has an expected return of 14 percent and a standard

(10) An investment strategy has an expected return of 14 percent and a standard deviation of 8 percent. Assume investment returns are bell shaped. How likely is it to earn a retur…

(10) Consider the graph given above. Use the nearest neighbor algorithm to find

(10) Consider the graph given above. Use the nearest neighbor algorithm to find the Hamiltonian circuit starting at vertex J. a. List the vertices in this Hamiltonian circuit in t…

(10) Suppose that, on average, 3 telemarketers call your house during a 7-day pe

(10) Suppose that, on average, 3 telemarketers call your house during a 7-day period. What is the probability that no telemarketer call your house on a given day? Assume that the …

(10) There is a state fair game called Milk Can that was popular in the last cen

(10) There is a state fair game called Milk Can that was popular in the last century. The player is given three attempts to toss a softball into a 10-gallon metal milk can from a …

(10) You are Chairman of the Board of a fairly successful company. Many of the s

(10) You are Chairman of the Board of a fairly successful company. Many of the shareholders have been complaining about excessive compensation for the CEO of your firm, especially…