Mathematics Questions and Answers December 05, 2019

Participants with an intense fear of snakes received one of four treatments. Some worked with a model who handled a 4-foot king snake and encouraged others to imitate her. Others watched a film of adults and children who enjoyed progressively closer contact with a king snake. A third group received desensitization therapy, and a fourth group

The following x: measurements are obtained hourly in a chemical process. The target value is ,u = 50 and the standard deviation 0'= 4. A CUSUM chart is built based on the physical measurements (NOT a standardized CUSUM chart). Sample # Xi C+ N+ C' N' 1 49.5 0 0 0 0 2 48 0 0 0 0 3 46.2 0 0 1.8 1 4 47.5 0 0 2.3 2 5 46.8 0 0 |:| 3 6 49 0 0 2.5 4 7

Hello, I need a and b to this problem. Thanks! The following data were used in a regression study, Observation 1 2 5 6 5 (a) Develop an estimated regression equation for these data. (Round your numerical values to two decimal places.) (b) Construct a plot of the residuals. N N N O Residuals Residuals Residuals -2 -2 -2 10 2 6 8 10 B 10 O X N

Fletcher Brianna Meeks 08/14/2

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Instructions: Please provide your AN OVA table and justify your conclusions based on your F test results. 2. The computer operations department had a business objective of reducing the amount of time to fully update each subscriber's set of messages in a special secured email system. An experiment was conducted in which 40 subscribers were

A resort is planning a bicycle race. The cost of sponsoring the race is $8000. the resort expects to make $15,000 on the event. There is a 30% chance of a hurricane arriving the day of the race. If this happens, the race will be cancelled and will not be rescheduled. What is the resort's expected profit?

[ PLEASE PLEASE UPLOAD THE ANSWER IN EXCEL USING SOLVER BY NON-LINEAR OPTIMIZATION METHOD. I REQUEST YOU TO GIVE THE ANSWER TO THESE QUESTIONS BY SOLVING ON EXCEL AND ATTACHING THE EXCEL HERE OR AT LEAST A PICTURE OF STEP BY-STEP] THIS IS HIGHLY IMPORTANT. READY TO CLARIFY ANY PART OF THE QUESTION Hauck Financial Services has a number of passive,

For the function g(x) graphed here, find the following limits or explain why they do not exist. a. What is lim g(x)? Choose the correct answer below and, if necessary, fill in the answer box to complete your a. lim g(x) X- - 2 x- - 2 choice. b. lim g(x) X - - c. lim g(x) O A. lim g(x) = X - C x - - 2 lim g(x) lim g(x) does not exist x- - 0.9 OB.

1. From the technology display, what is the test statistic?2. From the technology display? What is the critical value?3. Does the test statistic fall in the critical region bounded by the critical 111 Homework: Go - Graded Week 7 Homework Question 24, 11.1.3 HW Score: 44.7%, 12.52 of 28 points Part 1 of 4 Points: 0 of 1 Save A random sample of 793

2. Experimental trials are run on an operating chemical process in which four variables are changed in accordance with a randomized factorial plan, in order to determine the effects of these variables on an impurity in the resulting product: Variable + concentration of catalyst (%) 5 7 concentration of NaOH (%) 40 45 agitation speed (rpm) 10 20

Dashboard / My courses / VSU Main Campus / College of Engineering and Technology / BS in Agricultural and Biosystems Engineering ESci 112 - Calculus for Engineers | / RCL ESci 112 Virtual Classroom / Final Examination Time left 2:54:07 Quiz na Question 3 3. If z - + , then 2x 2 Not yet y and answered 10 Marked out of 2.00 P Flag 3.4 Maximum file

1. ( points) A math teacher would like to present the midterm results to his class in a way that shows the overall spread of the data. The 37 test scores for the test are listed below. 73 70 73 79 80 68 72 62 65 78 50 95 45 78 62 98 50 61 91 89 57 64 77 69 82 73 70 73 79 80 68 72 62 65 78 50 95 a) Construct the relative frequency histogram using 5

Consider the hypothesis statement shown below. _ 2 2 H0.U1502 2 2 1'52 H1 : 6 State your conclusion given that 51 = 37, 52 = 35. n1 = 15, n2 = 23, and a = 0.05. Click here to View a table of critical F-scores with 0.05 in the right tail of the distribution. Click here to View a table of critical F-scores with 0.025 in the right tail of the

More than 10% of people carry the parasite Toxoplasma gondii. The following table gives data from Prague on 15- to 29-year-old drivers who had been involved in an accident. The table gives the number of drivers who were infected with Toxoplasma gondii and who were uninfected. These numbers are compared with a control sample of 249 drivers of the

C. [5 pts] Consider the improper integral In(I) dr. Write down a limit or sum of limits to which the r- 1 Fundamental Theorem can be applied that would define this improper integral. Additional Directions: In order to receive credit for your revisions, you must include a graph. Be VERY careful; does the graph clearly show where every point of

Exercise 9-62 (Algo) (LO9-4) You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 98% confidence level and a margin of error of 3%. A pilot survey reveals that 7 of the 45 sampled hold two or more jobs. (Use t Distribution Table & z Distribution Table.) eBook How many in the workforce should

Job Title Yearly Average Salary Accountants and Auditors 76,130 Actuaries 112,030 Acupuncturists and Healthcare Diagnosing or Treating Practitioners, All Other 80,390 Calculations/Values Formulas/Answers Adhesive Bonding Machine Operators and Tenders 39,460 Mean 65,039 Administrative Law Judges, Adjudicators, and Hearing Officers 114,760 Standard

1. A coin is tossed and an eight-sided die numbered 1 through 8 is rolled. Find the probability of tossing a head and then rolling a number greater than 1. The probability of tossing a head and then rolling a number greater than 1 is ___. (Round to three decimal places as needed.) 5. A physics class has 40 students. Of these, 13 students are

Question 16 (1 point) What quadratic inequality represents this situation? 800 people will attend a concert if tickets cost $20 each. Attendance will decrease by 30 people for each $1 increase in the price. The concert promoters need to make a minimum of $12 800. CO O 1) (800 + x)(20 - 30x) $ 12 800 O 2) (800 + x)(20 - 30x) 2 12 800 ( 3) (20 + x)

The consumption of tungsten (in metric tons) in a country is given approximately by p(t) = 137t + 1,072t + 14,913, where t is time in years and t= 0 corresponds to 2010. (A) Use the four-step process to find p'(t). (B) Find the annual consumption in 2030 and the instantaneous rate of change of consumption in 2030, and write a brief verbal

Suppose the mean per-person check for brunch at a restaurant chain is approximately $11.75. a. Assuming a standard deviation of $3.00, what sample size is needed to estimate, with 99% confidence, the mean per-person check for brunch to within $0.25? The sample size needed is 959- correct answer (Round up to the nearest integer.) b. Assuming a

1. Determine and explain what value(s) of a make the function f (m) given below continuous. ans1, 112 x): {(32)2+a, m>2 2. (a) Find an equation of the tangent line of the curve y = x3 3x + 1 at the point (2, 3). [l-Iint: You mayr use the differentiation rules covered in class on Tuesday to compute the slope of the tangent ]ine.] Equation of

Can you help me solve this? DETAIL PREVIOUS ANSWERS ZILLPRECALCO MY NOTES ASK YOUR TEACHER PRACTICE ANO Let f(x) = x2. Find a formula for a function g whose graph is obtained from the graph of y = f(x) after the following sequence of transformations: . Shift left 4 units. . Reflection across the y-axis. . Shift down 3 units. . Vertical scaling by

0 / 1 pts Unanswered Question 2 In the previous context of observing three data points of (Yi, X,) as (2, -1), (1, 0), and (3, 1). Let $2 (2) = (23 + b2 be the first-order spline interpolation function in the interval x E [-0, 1]. Compute the values of a2 and b2. a2 = and 62 Answer 1: You Answered (You left this blank) Correct Answer 2 Answer 2:

(6.1)10 You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 45 business days, the mean closing price of a certain stock was $123.40.

In a survey of women in a certain country (ages 20- 29), the mean height was 62.5 inches with a standard deviation of (a) The height that represents the 95th percentile is inches (Round to two decimal places as needed.) (b) The height that represents the first quartile is inches (Round to two decimal places as needed.)

4. In a recent poll of 1200 randomly selected adult office workers, 32% said they had worn a Halloween costume to the office at least once. a. Check the conditions of the Central Limit Theorem. b. Find a 95% confidence interval for the proportion of all adult office workers who have worn a costume to the office at least once. c. Interpret the

An experiment is conducted to estimate the difference in work productivity for employees under two conditions: with and without music playing in the background. Twenty employees volunteered to be part of the study. Ten of the volunteers were randomly assigned to work for one week with music playing in the background. The other 10 volunteers worked

Could someone answer both parts for me? Thank you in advance. Use the normal distribution of SAT critical reading scores for which the mean is 503 and the standard deviation is 109. Assume the variable x is normally distributed (a) What percent of the SAT verbal scores are less than 625? (b) If 1000 SAT verbal scores are randomly selected, about

Find fx(x,y) and fy(x,y), and explain why f(x,y) has no local extrema. f(x,y) =4.4 -2.1x +7.2y +0.4y +x2 A . . . fx ( x, y) = fy (x,y) = Choose the best explanation below for the reason that f(x,y) has no local extrema. O A. The functions fx(x,y) and fy(x,y) are never equal to each other. O B. The function fy(x,y) is always positive while the

3TT 6. How many degrees are equal to 2 radians? O 1350 O 180 O 90 O 270 3TT 7. How many degrees are equal to 4 radians? O 1350 450 O 90 O 1608. How many degrees are in a radian? O TT 180 O 180 O TT O 1 O TO 9. How many degrees are equal to radians? O 6.230 36 O 0.6230 O 72010. How many degrees are equal to radians? 6 450 O 30 O 60 120 11. How many

5. (1 Point) Find the work done by the force field F(r, y, z) = zi + yzj + rk on a particle that moves along the curve r(t) = ti - taj + tik, 0

A. True or False. Write True if the statement is correct and False if otherwise. (20 points) 1. Hypothesis testing is a defined claim or guess. 2. Alternative hypothesis denotes presence. 3. A claim or guess may or may not be true. 4. Type II error is rejecting a true null hypothesis. 5. Hypothesis is an educated guess. 6. It is not important to

Sophia is vacationing in Monte Carlo. On any given night, she takes X dollars to the casino and returns with Y dollars. The random variable X has the PDF shown in the figure. Conditional on X=x, the continuous random variable Y is uniformly distributed between zero and 3x. Sophia is vacationing in Monte Carlo. On any given night, she takes X

-4 3 -2 -1 2 4 Use the graph of f(x) above to estimate the value of f (0) to one decimal place. f'(0) - There is an example on page 3 of the Lecture Notes

I need help with algebra and precalculus Use the Quadratic Formula and a calculator to nd all real solutions, rounded to three decimals. (Enter your answers as a comma-separated list. If there is no real solution, enter N0 REAL SOLUTION.) x2 2.452x+ 1.250 : o The sum of the squares of two consecutive even integers is 34!]. Find the integers.

Knowledge/Understanding. Please use CAPITAL LETTERS for the Multiple Choice and True False For full marks in this section you must show rough work in the space near each question. 1. If u = [1, 3, 1] and 3 = [-1, -1, 1] find Zu x 3 a) [1, 9, 13] b ) [ 8 , - 4 , - 4 ] c ) 4 [2, - 1, 1] d) none of these Unit 5 2. If u = [2, 0, 0], 7 = [0, 2, 0], w =

Do not show work, Just give answer. Finish quick please: 5. The prism is bisected by the xz-plane. The point P = (5, 4, 5). Determine A. a. (0, -4, 5) c. (0, 4, 5) b. (0, 4, -5) d. (0, -4, -5) 6. Which cannot be represented by a scalar? a. speed c. area b. velocity d. mass 7. Which of the following would be a linear combination of {(a, b), (c,

Each of the following statements are FALSE. Provide an explicit counterexample for each of the statements. (a) Suppose f (:13) is an always positive continuous function for x 2 1 and lim f (3:) = 0. 11} 00 Then I f(a:)d:c converges. 1 (b) Suppose a1\" is an always positive sequence that diverges. Then lim an > oo nmo 00 00 (c) Suppose 2 an

5. Higher-order derivatives are derivatives that are taken found after a previous derivative has been taken. For example, we can take the first derivative (y') and the second derivative (y") and the 3rd derivative (y") if we are given the original function (y). Quite often, multiple higher-order derivatives can be found. Higher-order derivatives

1. The derivative of a function is f 1 (x)=x(x+2)(x-4). From this function which of the following must be true about f? A. f has a local maximum at x = 0 and local minimums at x=2,4x=2,4. B. f has local maximums at x=2,0x=2,0 and a local minimum at x = 4. C. f has local minimums at x = 0, 4 and a local maximum at x=2x=2. D f has local maximums at

Exercise 7.1 Part 1 A. Determine if each statement is a proposition. 1. Every triangle is a polygon. 2. All right angles are congruent. 3. x is greater than or equal to -2. 4. If x + 2 = 4, is x = 27 5. The sum of the interior angles in a triangle 6. Some rectangles are not parallelograms. 7. Each equilateral triangle is an isosceles triangle. 8.

Question 2 5 pts If the total revenues increase, and the total assets are unchanged, which following indicator is larger O the return on net assets O the debt ratio O the total asset turnover O the return on assets

An important application of regression in manufacturing is the estimation of cost of production Based on the data below from Ajax Widgets relating cost (Y) to volume (X), what is the cost of producing 600 widgets? None of the answers are correct 5826 6954 6312 5206 Production Volume (units) Total Cost ($) 400 4384 450 4722 550 5233 600 6091 700

Many doctors rely on the use of intravenous medication administration in order to achieve an immediate response of a particular drug's effects. The concentration. C, in mglL, _ 2 of a particular medication after being injected into a patient can be given by the function 0(1): m where the time, t, is hours after injection. (2+3:+2' Part A: What is

The connection between a group of people can be represented using a graph. An individual is represented with a node, and the relationship between two people is an arc. Some of these social networks can be very complex, e.g. Figure 1. Figure 1: A social network represented as a graph. Source: Brendan Griffen. Consider two people, A and B. Person A

Smithfield Foods is the largest pork producer in the US. They would like to estimate the average weight of young pigs they have. Let us suppose the weight of young pigs follow an approximately normal distribution with a standard deviation of 22lbs. How large a sample should be taken to estimate the true mean weight to be within i2lbs. with 90%

15. Gimli works for a painting company that will be painting a room that has the following width and height measurements for each wall: Wall Height Width (m) (m) 18.7 4.2 19.2 3.5 W N 13.4 3.0 4 15.8 3.5 Paint is sold by the gallon and costs $46.78 per gallon. Each gallon can of paint can cover an area of 450 ft- a. Determine the total area, in

mean, variance, and stanau values of n and p. 12. n = 64, p = 0.85 11. n = 80, p = 0.3 14. n = 316, p = 0.72 13. n = 124, p = 0.26 Using and Interpreting Concepts Finding Binomial Probabilities In Exercises 15-24, find the indicated probabilities. If convenient, use technology to find the probabilities. 15. Answer Guessing You are taking a

Please kindly give right answer Question 2, 8.2.15-T > HW Score: 21.67%. 1.73 of 8 points Part 1 of 2 0 Points: 0 of l E Homework: C apter8 Homework Golf cart attendants at a local country club often receive tips from golfers they assist with golf clubs. To help recruit new employees, the countw club would like to determine the average tips per

Please explain step by step how I get this answer in the example below using this formula Consider the following LP model: Maximise P = 2r + 3y subject to 2x + 3y

When Ali had 3 years left in college, he took out a student loan for $ 15,810, The loan has an annual interest rate of 7.5%, Ali graduated 3 years after acquiring the loan and began repaying the loan immediately upon graduation. According to the terms of the loan, Ali will make monthly payments for 2 years after graduation. During the 3 years he

t.aspx?testld=242406059¢erwin=yes tcher Brianna Meeks 08/14/22 3:18 AM v Question 9 of 10 This test: 10 point(s) possible This question: 1 point(s) possible Submit test The weights (in pounds) of 6 vehicles and the variability of their braking distances (in feet) when stopping on a dry surface are shown in the table. Can you conclude that

| When selecting a regression model. there is typically a trade-off between and variance. Typically, the more complex a model is, the greater the is and the smaller the i5

Given complex numbers z and z , z 5 cos i sin 4 4 z 6 cos i sin 12 12 Give an exact answer. Express any numbers as integers or simplified fractions. Part 0 2 Partl of 2 (a) Find z IZ and write the product in polar form with O 2m.

need help please?

4,00 termioe el rango de la siguiente funci6n exponential f(x) ex. 2

Consider the functions

f(x) x 3 and g(x) x 4

Use the Riemann sum to evaluate the integral ( x 2 + x ) dx from 1to -2. Please show me the steps to get delta x and xi in detail.

A researcher wants to know the effect of watching the news as a child on high school student's grades. He expects kids who watched CNN to have higher average exam scores than the rest of the population. He gathers a sample of students who watched CNN as kids: Did watch CNN when younger: n = 10, M = 93, SS = 200 Population: M = 85 What is the t

Does this sequence converge? Find the limit and prove using epsilon

a box with an open top is to be constructed from a rectangular piece of cardboard 2m x 3m, by cutting out a square from each of the four corners and bending up the sides. find the dimensions of the box if it is to have a maximum volume

Find an equation for the ellipse. Graph the equation. foci at ( - 4,2) and ( -4, - 8); length of major axis is 16 Type the left side of the equation of the ellipse. = 1

Write the equation for the inverse of the function. y = cos 2x a. y = Cos 2x C. y = Cos -1 NIX b. y = - Cos 2x d. Y = - Cos x N

A sample of 157 randomly selected students, found that the proportion of students planning to travel home for Thanksgiving is 0.69. What is the standard deviation of the sampling distribution? Round to 3 decimal digits

Students' GPAs and scores on standardized tests (SATs and ACTs) are entered into a formula that calculates an "admissions index" score. The admissions index score is used to set eligibility standards intended to meet the goal of admitting the top 13%13% of high school students in the state. In this context, what percentile does the top 13%13%

Find the horizontal and vertical asymptotes then graph the rational function. 6 y= 2x - 4 If there is a horizontal asymptote, what is it? Select the correct choice below and fill in any answer boxes within your choice. O A. The horizontal asymptote is (Type an equation.) O B. There is no horizontal asymptote

b) The test statistic's value is (24. 15-18.51)/sqrt(4. 17 2/40 + 4. 16 2/35) 5.844. What is the test statistic for this sample? Oz-test O paired samples t-test, df = 34 O independent samples t-test, df = 34 c) The p-value is: Use Technology d) Based on this. we

Please teach how to solve 1. For the function graph below, estimate the x value for which the curve has the greatest curvature. 4 -3 - 2 -1 3 41

Suppose the confidence interval equals (12,18). What is the value of the point estimate?

Assume x has a normal distribution with the specified means and standard deviations. Find the indicated probability. (Round to 3 decimal places.) P(x > 4.5) with = 3 and = 2

HW #1.Q3 [EXTRA POINT] HW#1, Question #3 : If Ay - dy Assuming non-zero solution for y, show A - XI is a singular matrix OR det(A - AI) = 0

let E={V1, V2,..., Vn} be a basis for R^n. for VER^n, if V is not in span {v1, V2,..., vn-1}, show that {v1, v3,..., vn-1,v} is a basis for R^n

Find the probability by referring to the tree diagram on the right. 0.7 A M P(B) = P(MnB) + P(NnB) 0.2 0.3 B Start 0.4 A 0.8 N 0.6 B The probability is .(Type an integer or a decimal.)

1 1 point Let r (t) = (t, 1 2 1+3 to fort E 0, co). Compute the tangential component of the acceleration at time t = 9. By tangential component of the acceleration, we mean: if a = 3T + 6N, we are looking for 3

A study is run to estimate the mean total cholesterol level in children 2-6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measured as follows. 185 225 240 196 175 180 194 147 223 Find the sample mean. Find the sample standard deviation. Find the standard error. Find the margin of error for 90%

1. Consider the differentiable function N(x), with the characteristics N (5) = -3 N'(-2) = 2 and N' ( 5 ) = 7 Now let Q(x) = N(9 -x2). Compute Q'(-2). [Note: You may not need all of the information provided.]

please see the following question and solve with explanation

Which is the equivalent ARIMA model for Holts exponential smoothing method O ,5) (0,1

The number of likes on your tiktok account follows a Poisson distribution with an average of lambda = 139.4 likes per day. What is the standard deviation of the mean number of likes per day over the last 17 days? Enter your answer to 3 decimal places

Which of the following describes how the scatter plot appears? Select all that apply. 6 . N X 2 3 5 6 7 8 9 weak O C linear nonlinear negative Positive

Give an Example of prediction where dependent variable does not Depend on Time

An attribute Y is said to be of attribute X if preferences for specific outcomes of Y do not depend on the level of attribute X. a. preferentially independent b. additive independent c. utility independent d. None of the above

Research and summarize a real-world application of statistics. In this application be sure to include one of the central tendencies such as mean, median, mode, or range. Be sure to thoroughly describe the situation and the importance of statistics in it. Remember to use APA format to cite your sources.

Consider the sequence an given by n In(n)

A large stockpile of used pumps contains 10% that are in need of repair. A female maintenance worker is sent to the stockpile with four repair kits. She selects pumps at random and tests them one at a time. If the pump works, she sets it aside for future use. However, if the pump does not work, she uses one of her repair kits on it. Suppose that

12 Find an equation for the tangent line to the graph of y = (x -16x) at the point ( - 4,0). The equation of the tangent line is y = (Simplify your answer.)

5. State the domain, x and y intercepts, equations of all asymptotes and the coordinates of any holes, max/min points, points of inection and sketch: (A 10) f (x) = Minx)3

hi plssss. help me solve this question. need asap and fast. write it neatly and understandable. good rating will be given..... Use spherical coordinates to evaluate the integral (x2 + y? + z?) dz dy dx

I don't understand what to do after distributing the n to each term. Please help:(

(2x2 3)dx n n Xi X ot Xv ZIG) till g lim 2 (20)43) (2 (4) d 3) lim

A. Find the Taylor series of the following functions. 1. f(c) In(l I a o. 1.

5% 511.: E, (0 0), (20 pt.) 11(0, t) = 0, HOT, 1'.) = no, t > 0 Mix, 0) = 0, 0 D)

Please show full answers with all the steps, so that I can understand it. thank you very much. Please only choose if you are familiar with the he topic. Just question 5

Assuming o is known, the margin of error E is: E = Zx Match the following: z alpha/2 complement of the confidenc sigma [ it]# ] n [ ist]# ] V alpha [ it]# ] V

Please answer no 5 5) Find the x-component of the centroid of the plane lamina that lies between the curves y =1-x2 and y = x2 -1 in the range 0

Domain dil The entire graph of the function fis shown in the figure below. Write the domain and range of f as intervals or unions of intervals. domain = range = -2

larks) 2. Use the definition of the-derivative to determine the first derivative of y = v 3 - 5x Note: No marks will be awarded for derivations that use any of the derivative theorems

7) In this question you must show detailed reasoning [7] Find the gradient of the curve y + xy = x+ 1 at the point ( 3 , 2 ) and the exact values of the x coordinates of the turning points 8) In this question you must show detailed reasoning [5] Use the substitution u = x +1 to find (x2 + 1)6 dx

Given s(t) = t + 3t, where s(t) is in feet and t is in seconds, find each of the following a ) v (t) b ) a(t) c) The velocity and acceleration when t = 2 sec a) v(t) =

Use the graphs shown in the figure below, All have the form f (z) = ab\" . Which graph has the smallest value fora? (a) A (b) B (c) c (a) D (e) E (f) F Show your work and explnln, In your own words, how you arrlved at your

To be answered: never mind number3 /I'opic: Limit Theorems We are now ready to list down the basic theorems on limits. We will state eight theorems. These will enable us to directly evaluate limits, without need for a table or a graph. In the following statements, c is a constant, and f and g are functions which may or may not have c in their

What is the purpose of using a confidence interval? In other words, what does a confidence interval estimate? Why is there a level of confidence associated with a confidence interval? In other words, why isn't a confidence interval 100% accurate? https://www.youtube.com/watch?v=tFWsuO9f74o&list=PLm9FYjKtq7Py3ZTA8vwNmAkxXjC1WVw9P