Mathematics Questions and Answers December 01, 2019

n experimental design, what is the function of meeting the requirement of freedom from confounds? Focus on subject variables Random assignment of participants to groups Random group comparisons Ensuring that alternative explanations for results are eliminated

I need to know what this looks like on excel.I need correlation coefficient somebody answer it it already and it is 0.0000 now I need a picture if what it looks like on excel.

Several years ago Bill got a home mortgage of $155,000 with a term of 30 years at an APR of 9%. Use the Long-Term Estimate/Bound (the book calls this Rule of Thumb 3) to find the difference between his estimated monthly payment and the monthly payment formulagives. Enter your answer as a positive value rounded to the nearestcent. difference: $

Researchers were interested in the influence of yoga on reported stress levels in high school seniors. A sample of 29 high school seniors reported stress levels before (Time 1) and after (Time 2) a 30-minute yoga class. The mean difference value (x2x1) was 0.35, with a standard deviation of 1.1. Calculate the lower boundary of the 95% confidence

A research team studies the effectiveness of a new blood pressure medication for hypertensive men aged 60 to 70. They recruit 100 men from the population and randomly assign them to the treatment or placebo-control group. Each group takes the respective medication for 30 days, blood pressure for each participant is measured using an ambulatory

State what are the correlations between arithmetic sequence, arithmetic series, geometric sequence, geometric series versus simple interest, compound interest, present value annuity, and future value annuity.

Standard Deviation of Comparison Distribution 2.27272727 Rounding to two decimal places, the comparison distribution's standard deviation is approximately 1.51. How do you round to two decimal places

Use the accompanying 200 Los Angeles commute times to test the claim that the mean Los Angeles commute time is less than 34 minutes. Assume that a simple random sample has been selected. Use a 0.05 significance level. Compare the sample mean to the claimed mean of 34 minutes. Is the difference between those two values statistically significant?

summarize these direction for me; Find a test where the Levene's Test significance level is NOT .05 or less- implies variances are equal and ANOVA can NOT be used (use 1st "based on Mean" row on table). HOWEVER, IF FIRST ONE is .05 or less, Please Try Another - up to 3 tries (using different IVs), then if still not finding one that has a

Supply the missing words to make the statement about choosing participants true: It is ____ to enroll research participants in a/an ____ manner. a. impossible ; biased b. impossible ; equitable c. possible ; equitable d. impossible ; unbiased

Please answer all parts a-e of question 1 below. Please show all work and all steps for all parts a-e in order to get marked as a helpful answer. ?? Please DO NOT copy solutions from chegg, because these data points are different. (12.5 points) The data in the following table come from an article by Bethe] et a]. (1935}. All subjects are

Question 2 (1 point) Using the 'Complement rule', if we know there are 22 vials of H20 compound in the storage facility of 1,000 vials, what is the likelihood that we will NOT select a vial of this type? We can't tell, not enough information. 22/1000 O 978/1000 O 978/800

(1) Solve the following inequality. Use interval notation to express the result. 2x + 1- (2) Find the domain of the following function. Express the domain using interval notation. f(x) = V5 -x+ 1 I' - 31 (3) Suppose (9) Suppose f(x) = vix - 8 and g(x) = - . Find (fog)(x) and its domain. /(I) = |x -3| +4 ifz 0 (c) Find the range of f. and use the

Line Graphs: Apply Pre-Attentive Attributes to Line Graph Average Life Expectancy of Various Countries(1960-2009) Sadina, Prathna, Iwalit Vatsal,Nilhila, Dona-Group6 25 70 Ascript Life Expectancy (Yearst 20 10 Year

What would you suggest would be the number of questions on the survey, and how to get the right population to survey?

Use the 5-step solution for each of the following problems. Example: BE Accountancy_Business,_and_Mar X pon pearson-product-moment.pdf X BE anova.pdf X + X C File | C:/Users/Windows%207/Downloads/anova.pdf 7 of 15 Q +2 0 Page view | A Read aloud Add text | Draw Highlight Erase Example 1 The following table indicates the number of bottles of four

A survey was taken of randomly selected Americans, age 65 and older, which found that 418 of 1002 mon and 548 of 1057 women suffered from some form of arthritis. a) Are the assumptions and conditions necessary for inference satisfied? Explain. b) Create a 95% confidence interval for the difference in the proportions of senior men and women who

Problem 2: It is known that in United States the probability of death within one year for a ETyearold person as 0.01059. Suppose that you are an insurance agent with 10 clients who have just reached age 57. Assume here that deaths of the clients are independent events. (a) "W hat is the probability that all 10 survive the next year? (15) WT hat is

According to a survey in a country, 31% of adults do not own a credit card. Suppose a simple random sample of 400 adults is obtained. Complete parts (a) through (d) below. Click here to View the standard normal distribution table (Egg); Click here to View the standard normal distribution table (Egg); (I) phrase that best describes the shape of the

Do you think we have convincing Number of evidence complaints due 0.294 to suggest to identity Value of p E = P-value that 0.0204 theit (out of Florida is 500) exceeding the national trend? Why? No because a sample proportion 0.296 - 0.294 of 0.296 is 148 0.296 2 = 0.0204 0.461 not that unlikely 2 = 0.098 given the national trend of 0.294. No,

You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats. You sample 200 men, and 10% own cats. You sample 160 women, and 45% own cats. Find the test statistic, rounded to two decimal places

The circles are concentric. Find the length of PQ. 10 in. Q The length of PQ is in

The circles are concentric. Find the length of PQ. 10in, The length of PQ is in

question 6 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Use a table of areas to find the specified area under the standard normal curve. 6) The area that lies either to the left of 1.56 or to the right of 2.30 6) A) 0.0487 B) 0.9513 C) 0.0701 D) 0.9299

please answer a and b, 1-5 1. critical value 2. pooled variance 3. standard error 4. t 5. Decision (reject/fail to reject) 5. effect size and or confidence interval if required18. If other factors are held constant, explain how each of the following influences the value of the independent- measures t statistic, the likelihood of rejecting the null

. . snhu.mobius.cloud + Question 4 Identify the open intervals on which the graph of the function is increasing or decreasing. Assume that the graph extends past what is shown. 6 points 20 How Did I Do? 16- 12 8- Maple plot -10 --8 -6 -4 -2 0 -2 6 . 8- 10 00 -12- -16 20 Note: Use the letter U for union. To enter oo, type infinity. Enter your

1. A recipe needs 1 tablespoon of olive oil per portion. How many portions can be prepared if a Chef has 6 16 oz. cans of olive oil. Remember (1 oz. = 28.41 ml. ) ( 1 Tablespoon =15 ml) (for your answer round accordingly) 2. A bartender serves 2707 standard 1 oz. drinks per night. Determine the number of 750 ml bottles the bartender has to order

mobius Gradebook External / MAT-225-H3813 22EW3 Calc I: Single-Variable Calc / Module Four / 4-2 Module Four Problem Set 4-2 Module Four Problem Set Current Grade: 0.0 / 50.0 Remaining Time: 134:50:14 snhu Do you need help with this problem or this material? Remember to use the Academic Support resources available on your homepage in Brightspace

If you have seven digits in how many ways can they be arranged

3 (4 pts, textbook)_The table below gives the self-reported heights of 10 college women ("Daughter's height"), along with the heights of their mothers. The unit of height is an inch. Daughter's height (y) Mother's height (x) 60 62 66 67 65 64 66 66 67 65 63 63 69 65 63 61 61 59 65 67 (1 pt) Provide a scatterplot for these data with the Mother's

Name: IB Applications & Interpretation -Review Sheet - Paper 1 Style Questions 1. The activities offered by a school are golf (G), tennis (T), and swimming (S). The Venn diagram shows the numbers of people involved in each activity. a Write down the number of people who 1 play tennis only ii play both tennis and golf Ill play at least two sports

The table below shows the expenses of a certain family for one whole year. What is the Pearson correlation (r)? a. 143 b. 146 c. 289.15 d. 584.667 The table below shows the expenses of a certain family for one whole year. * What is the Pearson correlation (r)? X Y m 0 584.667

2. As part of your proposal, you will need to identify: opportunities where resources may be shared across the organisation . existing internal capabilities external resourcing requirements. Provide an analysis of the three elements. How would you incorporate strategies to maximise efficiency and manage risk

a. Find the limit by rewriting the fraction first. xy - 3y - 9x + 27 lim x - 3 (x,y)- (3,2) *=3 xy - 3y - 9x + 27 lim x - 3 (Simplify your answer.) (x,y)-(3,2) *= 3Let f(x,y) = x# + y". Find the slope of the line tangent to this surface at the point ( - 1, - 1) and lying in the a. plane x = - 1 b. plane y = - 1. a. The slope of the line tangent to

HW Score: 0%, 0 of 12 points 0 Points: 0 of 1 Question 11. 7.2.18 The 7th Inning wants to group a collection of autographed photos by price ranges. The $1.98 $28.38 $9.53 $9.51 $36.76 :I table with the prices is shown on the right. What percent of the collection is priced $4.38 $36.71 $28.09 $3.98 $22.39 below $20? $4.11 $10.55 $5.07 $14.82 $13.66

Refrigerator prices are affected by characteristics such as whether or not the refrigerator is on sale. whether or not it is listed as a Sub7 Zero brand, the number of doors (one door or two doors), and the placement of the freezer compartment (top, side. or bottom). The table below shows the regression output from a regression model using the

Please check if my solutions and answers are correct. Thank you! Question : Evaluate the definite integral using substitution rule. 3. J x2exa dx COSX 4. dx V1+sinx 3x 5. J (x2 +1)3 dx

Page Portfolio Problem Set #1 Name Read the following questions carefully. Answer each question completely. Show your work. When asked to interpret, we want to know what the number means in words. Please answer in a complete sentence. This problem set is worth 1 point. If you do not have all parts correct, you can resubmit your work to attempt to

15. Assume that a sample is used to estimate a population mean . Find the 99.5% confidence interval for a sample of size 1018 with a mean of 63.4 and a standard deviation of 21.7. Enter your answer as a tri-linear inequality accurate to 3 decimal places. _________________ < < _________________

3. Given the function f(x) = sin(x + =) a. Determine the amplitude of f (x). b. Determine the period of f ( x ) . 1 11 =1 c . Determine the phase shift of f ( x ) . d. Sketch the graph of f (x) for -IT S x ST. Label the tick marks on both of the axes. + 4 . Given the function f (x) = 3 sin(2x + 7) a. Determine the amplitude of f (x). b. Determine

1. If un is a sequence such that un -> u, then U1 + . . . + un u n as well

1.) State the quotient and remainder when the first polynomial is divided by the second. Check your division by calculating (Divisor)(Quotient) + Remainder. x 5 - x 3 + x - 8 x - 4 What is Quotient ________________ & Remainder____________. 2.) Find the remainder when f ( x ) is divided by g ( x ), without using long division. f ( x ) = x 8 - 4 g (

Question 1 4 pts Find the limit of the function as x approaches 0 by examining the table. X f (x) X f (x) -0.1 1.655 0.1 2.265 -0.01 1.9696 0.01 2.0296 -0.001 1.997 0.001 2.003 O 270 O 32 O -DO 0 2 O - 178

1. Find the Taylor polynomial of degree 4, centered at a = 4 for the function f(r) = Vx + 1

This assignment is very hard for me, and I am not sure if I am explaining some of this in the correct terms. Especially the histogram and scatter plot in the beginning. This is way too technical for me but I have to have this class for my minor. Have I articulated the data correctly? I am sure it is crude but I just want to makes sure the

What are the requirements before conducting a MANOVA test? A Independence of observations B All the dependent variables should be Normally Distributed C Homogeneity of covariance D All of these are correct

Derive the formula for sample size determination (shown below) for a one-sample binomial test with hypotheses Ho : P = Po H1 : p # po for the specific alternative p = p1 assuming npo(1 - Po) 2 5. 2 p1(1 - p1) Po (1 - Po) Z1-a/2+ 21-B1 Po (1 - Po) n = (P1 - Po) 2

Which of the following drove the baby boomers? Security, Quality, Status or Livelihood?

please write a reflection it should just be a short (several sentence) reaction about your thoughts and feelings about it. Link below... https://www.youtube.com/watch?v=fCn8zs912OE

You recently learned that a test statistic is used in hypothesis testing to help measure evidence against a null hypothesis. A test statistic allows us to take standard error into account when considering the evidence provided by a sample statistic. However, recall that the test statistic comes from one observed sample of data. Based on your

La siguiente captura de pantalla de regiesi6n se obtuvo de un estudio de empresas de arquitectura La variable dependiente es la cantidad total de honorarios, en millones de dlares C 000 0.05353 snoco 6357.3B 2.27 o ooo

Gateway (Student Portal) - Ease> Test #3 Chapter 4 egcc.instructure.com H120 > Assignments > Test #3 Chapter 4 Test #3 Chapter 4 Due Sunday by 11:59pm Points 10 Submitting an external tool Available after Nov 7 at 12am ements Test #3 Chapter 4 1hr44mins X Progress sa ents Score: 0/10 1/10 answered Question 4 Interpreting a Linear Equation At 12:00

To test H0: p = 50 versus H1: p

To test Ho 50 versus HI 50, a random sample of size n 23 is obtained frorrl a population that is known to be normally distributed. Complete parts (a) through (d) below. Click here to view the tDistribution Area in Right Tail. (a) If x 46.7 and s 11.1, compute the test statistic. to (Round to three decimal places as needed.) (b) If the

In creating a survey, a good survey question is essential. In addition, the following steps are useful. Identifying the sample population and choosing a sampling strategy. Choosing a method to conduct the survey: face-to-face, phone, paper survey, or internet survey. Deciding on a number of questions to ask, the order, and the wording of these

Find /(1) if r'(t ) = fi + ; andr(0) =i. O 4 O O O + In . 4 O + O + 3 4 O + O + 4

Calculate the central tendency for the dependent variable, develop a histogram of the gift amount and develop scatterplots for the gift amount for each independent variable.

A random sample is selected from a normal population with a mean of u=100 and a standard deviation of o-15. After a treatment is administered to the individuals in the sample, the sample mean is found to be M=105. Round all final answers to two decimal places. 1. If the sample consists of n=9 scores, is the sample mean sufficient to conclude that

Solve each absolute value equation graphically. Round to the nearest tenth if necessary. (4 marks 2 marks each)

Solve each absolute value equation graphically. Round to the nearest tenth if necessary. (4 marks 2 marks each)

SAT 4 points possible (graded) Up until 2015, the SAT had a "guessing penalty". Consider an exam with 40 questions each with six possible choices. Only one is correct. Each correct answer is worth +20 points and each incorrect one is worth -5 points. Consider answering each question by rolling a six-sided die for each question and simply choosing

Wyle E. Coyote is planning yet another futile attempt to catch Roadrunner (Beep Beep). This time he plans to attach a rocket to his back and chase down Roadrunner. His position, in miles, is given by the equation s(t)=13-212+10t , where time is in minutes. (a) As usual, Coyote has some difficulty with his plan and he flies wildly out of control

chapter 10 exercises 10.4 The following sample report from a cancer registry shows the weights for 20 males with adenocarcinoma of the rectum. Create an Excel spreadsheet to calculate the mean, variance, and standard deviation of the values. Round to one decimal place. You may add another tab or perform it on this one Patient Weight lbs. (X) 1 142

2 (3) Consider a wire in the shape of a semi circle of radius 2, given by :02 + y2 = 4 and y 2 0. Suppose the density of the wire is given by a (337 y) : y. (a) Find the mass of the wire. (b) Find the y coordinate of the center of mass of the wire

Acompany nds that the marginal prot, in dollars per foot, from drilling a well that is x feet deep is given by P'(x) = 254;. Find the prot when a well 100 ft deep is drilled. Set up the integral for the total prot for a well that is 10%feetr deep. D P(100)= I [Bu 0 The total prot :5 $D (Round to two decimal places as needed. if

[-/3 Points] DETAILS LARAPCALC10 2.4.505.XP. MY NOTES ASK YOUR TEACHER PRACTI The ordering and transportation cost C per unit for the components used in manufacturing a product is C = (500,000 + 8x2)/x, x 21 where C is measured in dollars and x is the order size. Find the rate of change of C with respect to x at each value. (Round your answers to

Ques 1 of preliminary excercise with reasons 2.9 SOLUTION Let 0 be such that 0 # . For any b, consider the line L(0) drawn at angle 0 to the x axis starting at (0, b). has formula y = (tan 0)x + b. Let A(b) be the amount of ham above the line minus that below the line. Let A > 0 be the area of the ham. We have to accept the following (reasonable)

Question 6, 20.3.13 HW Score: 0%, 0 of 10 points O Points: 0 of 1 Save Canty has an adjusted gross income of $68,689 and itemized deductions that total $18,598. Canty can claim two exemptions (One exemption = $4,000.) What is her taxable income? . . . Canty's taxable income is $. (Simplify your answer.). st :0o ,0 HO 't Question 4, 20.3.9 core A o

Write an equation in the form y=mx+b for the following table: x y -4 -8 -2 2 0 12 2 22 4 32 6 42 8 52 10 62 y=

0 / 1 pts Incorrect Question 5 Which section of a research article should a critical reader ask the question, "Are sufficient amounts of data such as quotes and/or statistics) provided in order to support the conclusions drawn?" O Data analysis Discussion/conclusion O Literature review O Results

Q-1) Formulate the null and alternative hypotheses for mileage and top speed to check whether the new models are performing as per the desired design specifications.

pls help thanks COSX 1 + sink Determine the correct sequence of steps needed to establish the following identity. 1 + sinx - 250CX COOK COSX 1 + sinx START: + 1 + sinx COOK 2 + 2sinx A. cosx(1 + sinx) cos * + 1+ 2sinx + sin x B. cosx(1 + sink) cos'x + (1 + sinx)? C. cosx(1 + sinx) 2 D. COST E. 2secx

UGHTNING STRIKES 700 100 2010 iow is this graph misleading O The vertical axis should not begin at zero. Beginning at zero makes the differences between the pictures more dramatic. O The pictures are twodimensional but represent onelimensional data. The difference between the data appears less than it would with bars. O The pictures are

Define and explain what " Random Experiment " is in Monty Hall's problem. (For example, in a coin toss experiment, tossing a coin is a random experiment.) Please explain in detail

What exponent must appear in the box to make the terms like terms

Use mathematical induction to prove the statement is true for all positive integers n. 10+20+30+...+10n=5n(n+1)

A survey of 2,359 American Households found that 94% of the households own a computer. What is the statistical name for the 94% of the households that own a computer?

Please teach how to solve Find T, N and B for the curve r (t) = (3 cos(5t), 3 sin(5t), 2t) at the point t = 0 Give your answers to two decimal places T(0) = Preview N (0 ) = Preview B(0) = Preview

6. a) Write a vector equation for the line that passes through the point (1, 4) and is perpendicular to the line: = 2 3, = 5 + , where . b) Does the point (2, 3) lie on the line in your answer to part a)? Show your work. 7. Determine the Cartesian equation for the line passing through the points (6, 2) and (3, 5). 8. Determine parametric equations

3005:3511]2 a: 0 g :1: g arr/2 0 otherwise. The random variable X has a density of f X(:z:) : { Find E[sin2 X] (Hint: either use inspection or the substitution at : sin t)

Question

I need it soon. I'll rate it. 3) Find the point on the line y = 3x+2that is closest to the origin (0,0). 4) Use Newton's method to nd the third approximation X} (as a fraction) of the given equation with initial approximation xl =1. x3x2120

O 0.95 Question 6 7 pts Use the normal curve below and the empirical rule to find the the standard deviation for the height data. Enter only a number (no words or symbols), and do not round. .68 01 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Find the unit tangent vector T and the curvature

Find the unit tangent vector anotheqwature parameterized curve. (t) (2t 2, 5t4,6t 12) T COO (Type exact answers using radicals as needed.)

A certain public examination has a consistent past record of a 25% failure rate. For a group of 15 people writing the examination this year, calculate the probability that: a. at least 12 will pass; (4 marks) b. all will pass.(4 marks)

4. Find a function y =f(x) satisfying the given differential equation and the given boundary condition: dy = (x -4);1(4) =6 dx

REMINDER: please answer all the problem and explain it step by step so that I can get I easily. thank you

any two non-degenerate closed and bounded intervals are topologically equivalent.

20. Draw parallelogram ABCD. Let AC and BD intersect at E. Let u = AE and v = AB Express the following in terms of u and v. [4 marks] a) BC Diagram and rough work b) DE

If f (x) = (3,-1) what are the coordinates of -- f (-3X) +1? 2 mark for each transformation, 1 mark if done in the correct order)

Question in picture 7. For the equal interval table below, calculate the approximate sum of X. Note that to do this, you will have to first calculate Xmidpoint and fXmidpoint Xmidpoint 1-5 6-10 CO 11-15 16 20 2 21-25 26-30 31-35 2 EX= 36-40

which of these correlation coefficients (Pearson's r) implies the weakest linear relationship between two measurement variables? A. -0.83 B. -0.42 C. -0.17 D. 0.29 E. 0.62

with detailed solution

Question 6 {4 points) When picking a treasurer, secretary, Vice president, and president, what are the odds that I choose 3 girls from the class of 2? with 14 girls? [4]

5. Determine the inequality for each graph. (3 marks) a. b. ...... ....... ......' .. .... . ...... ........ ......... . . .. ........ 5 . . : 0 2..... ..... .. .......... . .. . . . . . . . . . . . . . . . s. . . . . . . . . . . . . . . . .. 5

please show all work 6. For the following exercise, determine the point(s), if any, at which each function is discontinuous. Classify any discontinuity as jump, removable or x+3 infinite. f(x) = x2 +5x+6

Question

5.4 Moments & Centers of Mass Contemporary Calculus In problems 11 - 26, sketch the region bounded between the given functions on the interval and calculate the centroid of each region (use Simpson's rule with n = 20 if necessary). Plot the location of the centroid on your sketch of the region 21. y = ex and the line y = e for 0 x 1.

[C 2] Find the points of intersection between two planes: M:x - 2y+z+4=0 I12:2x - 3y - z - 6 =0

10. Rotate the region bounded by y=1xy=1x2, y=9y=9, x=-2x=-2, x=-13x=-13 about the xx-axis

10. Rotate the region bounded by y9y9, about the xxaxis

6. Let 0 = {0, 1, ..., }. Prove that there does not exist a uniform distri- bution on 2 (i.e., if P(A) = P(B) whenever |A| = [B), then P cannot satisfy the axioms of probability)

5. The diagram shows part of the graph of y = 12x2(2 - 3x). Find the area of the shaded region. /5

Question 5(Multiple Choice Worth 6 points) (04.01 MC) A particle is moving along the x-axis such that its position is given as a function of time as x(t) = 41 - 312. At what time is the particle stopped? Of = 0.25 Ot = 0 and t = 0.75 Ot = 0 and t = 0.5 The particle is never stopped Question 6 (Essay Worth 10 points)