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Mathematics Questions and Answers April 09, 2021

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1.A researcher wants to compare the levels of particulate matter (PM3.5) between 5 cities. She determined that the data are not normallydistributed. What test of significance should the research conduct? Why is this the appropriate test? 2.A university research group is conducting an experiment with 1 control group and 4 intervention groups. They

Can someone solve this Name 'j 'A AN 9-3 Reteach to Build Understanding Ellipses FS il WAleTsiel (Vs i ) i E_ sawvasrealize.com 1 1. Use the graph to determine the equation for the ellipse in the form of 125 + z b a a. Find the distance from the center to either vertex on the y-axis. The distance from (0, 0) to (0, 3) is a. a=4(0-0)2+(0-3)?
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6. Sketch a graph of the function a(x) = 1/2 34x + 4 . Describe the transformations to the graph of y = W
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r.schoology.com/common-assessment-delivery/start/53 Midterm Exam If T is the midpoint of sty find the values of x and ST. The c T 7x + 16
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12 15 The graph of f (x) is shown in the figure at the -2 2 3 4 6 -5 -1 0 - 3 - 2 2 8 11 9 h (x ) 6 8. Let g (x) = -2f(xx +1). Sketch Selected values of the function h(x) are shown in the table above. Use the values in the table to answer the following 4. Let h(x) = 6f(x+2) -3. (a) Find f(4). (b) Find f(0). (c) If f ( k ) = 2, find k. 5. Let h(x)
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278818/ According to the abstract, potassium channels leak potassium following damage to the myelin sheath. Explain how this would prevent a neuron from being able to generate an action potential.

. mun": 1 '- . V Armor 1: (You left thls blank) Answer 2: (You left this blank) Tests of a new light led to an estimated mean life of 1,321 hours and standard deviation of 106 hours. The manufacturer will advertise the lifetime of the bulb using the largest value for which it is expected that 90% of the bulbs will last at least that long. Assuming
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Set 2: Test each of the following equations to show that they are scale invariant. Find their general solutions (It is not necessary to do the antiderivatives. Note that not all these equations are scale invariant in the simplest sense, i.e., n=1). 1. xy' ty /x = xey/2 2. (x2 + 32) dy + (32 - a2) dac= 0 3. (x + y?) dy +ydx =0 4. (y + 2) dy - 23 da
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CoHee Coffee Time Again At a recent coffee convention, 55% of the participants enjoyed the taste of dark coffee and 70% enjoyed the taste of light coffee, and there is no one in the room that enjoyed neither of those (everyone attending liked at least once). What percentage of people cujoyed both? If 100 attendees enjoy both, how many attendees
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19) Which property of equality or congruence justifies each statement? a. If 3x+14=80, then 3x =66. b. If mZA=15, then 3mZA=45. c. If 4mLC =100, then mZC =25
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Find the general term of the sequence: 7, 13, 19, 25, 31, ...

C. The defining relating for Design 2 is I=CEF=ABDF=ABCDE. Which design (1 or 2) is better? Explain briefly and give at least one reason for your choice 1. A 26-2 fractional factorial involving factors A, B, C, D, E and F is to be run. Practitioners have these two sets of generators in mind: Design 1 Generators: E=ABD and F=ACD Design 2
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Thank you In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. Do you try to pad an insurance claim to cover your deductible? About 38% of all U.S. adults will try to pad their insurance claims! Suppose that you are the
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Here are several situations in which there is an incorrect application of the ideas in statistical inference. What is wrong and why? (a) A significance test rejected the null hypothesis that the sample mean is equal to 500. (b) A test preparation company wants to test that the average score of their students on the ACT is better than the national

rublem IS. [61.3.48] What is the area of the largest ellipse you can inscribe inter a triangle with side lengths 3, 4, and 5. Him: The largest ellipse you can inscribe inter an equilateral triangle is a circle. \f
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Which of the following location's "Latitude" reading is NOT correct? Question 37 options: 69 degrees 29 minutes and 9 seconds South 1 degree 2 minutes and 3 seconds South 35 degree 61 minute and 23 seconds North 89 degrees 2 minutes and 3 seconds North

ABSTRACT ALGEBRAIC SYSTEM 7. 5 25 17 31 47 19 41 43 53 49 29 37 23 7 35 13 11 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 0 a. (U(Z54), ) is a cyclic group. Use the table to find all the generators of U(Z54). (5 points) b. Find [(35)| (Use the corollary) (5 points)
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For every football game there is a team that is expected to win by a certain number of points. In bettingparlance, this is called the spread. If point spreads areaccurate, we would expect about half of all games played to result in the favored team winning(beating thespread) and about half of all games to result in the team favored to not beat the

IN CLASS 8 Imagine you've just started a small business, and you just launched your social media page for your business. You're curious about how many "likes" other similar new small businesses get on their posts, so you collect data from 17 similar new businesses on the number of likes they received on their most recent post and you found the

Apply the revised contents on Analytical Geometry. Question 1 A programmer carried out a simulation of a car accident, when the accident occurs three bodies will be left in different parts of the road, he observes that in his simulation the coordinates that he will assign to the bodies will be the origin and the centers of the circumferences.

e population of Port St. Lucie can be modeled by the function P = 195300e0.01784t here t is the number of years since 2020. se the above function to answer the following questions. that was the population of Port St. Lucie in 2020? n what year is the population of Port St. Lucie projected to reach 289,044? Round the solution to the nearest whole
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5. Given a 25 mL vial of 1% lidocaine with 1:500,000 epinephrine, calculate the number of mg of each drug

find an equation of the line through the pair of points. write the equation in the form of Ax+By=C (8,2)and(3,5)

On average, you receive 2.6 pieces of junk mail a day. Assume that the number of pieces of junk mail you receive each day follows the Poisson distribution. What is the probability that you receive exactly three pieces of junk mail today? A) 0.233B) 0.176C)0.218D) 0.198 What is the probability of receiving more than three pieces of junk mail today?

Review the assignment instructions and the rubric: Overview and Objectives In this assignment, you will have to create a rational equation to represent the total cost of making coffee at home. In addition, you will write the equation of a rational function graph. Work product to be submitted: There are two parts to this assignment; you must
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an auxiliary reference plane must be _____________________ to it's normal plane.

How do you find the x-value for which a function has greatest instantaneous velocity, the least, and instantaneous velocity = 0 when only being given a graph and not anything else.

Provide an example for each of the following types of bias. Use newspaper clippings or magazine articles where possible. Sampling bias Measurement bias Loaded questions Leading questions Response bias Non-response bias

which of the following is found near the centre of the village of Karimpur, as described in "Behind Mud Walls"? options: the charmar neighbourhood, a cremation ground or cemetery, the pond and/or village temple, the brahmin or brahman neighbourhood

Tremesha Exam (One Attempt, 80 Time Limit). This test: 25 point(s) possible This question: 1 point(s) possible list K Use the graph of the function f to answer the question. For what numbers x is f(x) = 0? O A. - 3, 3.5 O B. - 5, - 3, 3.5, 5 n 5 sty O C. - 3, 3.5, 5 OD. - 3 on 6 15 x on 7 on 8 ion 9 tion 10 stion 11 stion 12 estion 13 Time
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Problem: Argue that any divergence angle that is an integer fraction of a circle is not optimal for the plant. It would then appear that the most optimal divergence angle would be with being irrational. Moreover, the more irrational the better. Explain how the value 137.5 degree comes into play.

compare the number of dog owners in connecticutt verses California ct the research was 52/1000 California 85/1000 construct a 90 % confidence interval for the two proprtions

3. The owner of a gasoline station wants to study gasoline purchasing habits by motorists at his station. He selects a random sample of 60 motorists during a certain week, with the following results: The amount purchased was XBar = 11.0 gallons, S = 3.3 gallons. 15 motorists purchased premium-grade gasoline. At the 0.05 level of significance, is

Consider the following computer output of a multiple regression analysis relating annual salary to years of education and years of work experience. Regression Statistics Multiple R 0.7342 R Square 0.5391 Adjusted R Square 0.5191 Standard Error 2135.7399 Observations 49 ANOVA df SS MS F Significance F Regression 2 245,437,046.4452 122,718,523.2226
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Ex 1. Consider the solid whose base lies on the xy-plane, bounded by the equations y = 2z, @ = 1 and the z-axis. Above this base, cross sectional areas perpendicular to the x-axis are squares. Try to visualize what is going on, and then compute the volume
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find g(t)+h(t) \f
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6 For n a positive integer, define V" by Vn = V x ... XV. n times Prove that V" and C(F", V ) are isomorphic vector spaces
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The surface areas of two cubes have a ratio of 49 to 81. What is the ratio of the edge lengths of the two cubes
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(d) If the standard deviation of a random variable X is 20 and a random sample of size nequals15 is obtained, what is the standard deviation of the sampling distribution of the sample mean? sigma Subscript x overbarequals enter your response here (Type an exact answer, using radicals as needed.)

16. Determine the value of k such that the line that passes through the points A(1, 4, -6) and B(k,2k,4k) does not intersect the plane x+y+z9:U. [3 marks]
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Hey can you please help with this assignment I need these two questions and please she work 16. DETAILS Find the following basic derivatives. Any letter other than x is a constant. dx Cos (x ) = d dx ex = Submit Answer View Previous Question Question 16 of 17 View Next Question Home My Assignments + Request Extension Copyright @ 2020 Cengage
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Summarize how you know when to use each method - primary trigonometric ratios, the sine law, and the cosine law. Include evidence of your learning with examples, pictures, and/or explanations.

Consider the following table: Defects in batch Probability 0 0.30 1 0.28 2 0.21 3 0.09 4 0.08 5 0.04 Find the standard deviation of this variable.

For many years, the medically accepted practice of giving aid to a person experiencing a heart attack was to have the person who placed the emergency call administer chest compression (CC) plus standard mouth-to-mouth resuscitation (MMR) to the heart attack patient until the emergency response teams arrived.However, some researchers believed that

Express the set using the set builder notation {43,44,45,46}

74. [H] Let p(=) =1+z+2+23+2. a) Solve 25 - 1 =0 and hence factorise p(2) into linear factors. b) Find all linear and quadratic factors with real coefficients for p(=). c) Divide the equation p(=) = 0 by 23. Let x = = + - and deduce that a + r -1 = 0). d) Deduce that 2 TT -1+ v5 4TT and cos. -v5 COS - 5 2020 School of Mathematics and Statistics,
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Upload CARS data. SETUP: It is believed that Lincolns and Cadillac have different weigths. Given the data your job is to confirm or disprove this belief. (CAREFULL: sort the data in order to extract the needed information). 9. What test/procedure did you perform? a. One-sided t-test b. Two-sided t-test c. Regression d. Confidence interval 10. What

How do I set up a Monte Carlo simulation (using 5000 iterations) with the following: -Homeowners insurance policy with a $7,000 deductible, so that if I have a claim and the damage is less than $7000 I pay out of pocket. If the damage is greater than $7000 I pay the first $7000 and the insurance pays the remaining balance. In the current year

X is a random variable with E[X] = 2 and Var(X) = 8. a) Find Var(7X + 2). b) Find E[(X + 5) 2 ].

A book sold31,400 copies in its first month of release. Suppose this represents7.3% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.

y=ax+b The following table gives projections of the population of a country from 2000 to 2100. Year Population (millions) Year Population (millions) 2000 278.5 2060 433.4 Answer parts (a) through (c). 2010 300.5 2070 470.6 2020 332.1 2080 506.4 2030 356.5 2090 535.1 2040 379.1 2100 572.6 2050 405.3 (a) Find a linear function that models the data,
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When ticket holders fail to attend, sports teams lose the money these fans would have spent on refreshments, souvenirs, etc. The percentage of fans who don't show up is 15% in basketball and hockey, 21% in football, and 16% in baseball. The lost revenue per fan is $18.01 in basketball, $18.39 in hockey, $19.23 in football, and $15.69 in baseball.
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wers for clari Determine the doubling time or half-life of y in each of the following exponential equations. You may imagine that the variable y represents a quantity like population or light intensity that may be increasing or decreasing as T gets larger, and the variable T represents time or depth or something similar. If y increases as T gets
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for the cover infection rates in the entire city draw bell shaped curves and show where i. 50% of the data values are located ii. 68% of the data values are located iii. 95% of the data values are located in total 3 bell shaped normal distribution curves along with the upper and lower boundary data values. \f\f
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Part D - Write a Literary Analysis Essay Use the table in Part C to help you as you write your literary analysis essay in the space below. Expand on the information you've gathered to guide readers from one idea to the next and convince them of your overall opinion on the work of literature you decided to analyze. Be sure to include an
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31% of a certain country's voters think that it is too easy to vote in their country. You randomly select 12 likely voters. Find the probability that the number of likely voters who think that it is too easy to vote is (a) exactly three, (b) at least four, (c) less than eight. (a) P(3)=--------- (Round to three decimal places as needed.) (b)

The records of a computer retail store show that out of the50 customers who purchased a desktop computer last month, all but14 also purchased a service plan that extends the warranty for an extra year. Out of the100 customers who purchased a notebook computer last month, all but16 purchased the same service plan. Fill in the blanks of the

A private equity firm is evaluating two alternative investments. Although the returns are random, each investment's return can be described using a normal distribution. The first investment has a mean return of$2,250,000 with a standard deviation of $175,000. The second investment has a mean return of $ 2,475,000 with a standard deviation of $

What percent of undergraduate enrollment in coed colleges and universities in the United States is male? A random sample of 50 such institutions give the following data. Percent Males Enrolled in Coed Universities and Colleges 44 41 41 41 38 50 48 31 52 28 50 42 71 37 43 38 53 51 52 50 47 46 49 50 39 38 58 64 40 54 32 46 48 34 54 48 40 46 42 41 46

Please help The 1st FOUR problems MUST be done "Neatly" on your paper and t The Unit Circle Chart Law of sines sin(A) sin(B) sin(C) a C Law of Cosines 360 2m c2 = a2 + 62 - zab cos(C) a2 = 62 + c2 - 2bc cos(A) b2 = a2 + c2 - 2ac cos(B) 1 2 points Which of the following is a correct transformation of the function y = 3 sin(2x - 40 ) + 6 period = 3
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Two hundred college freshmen have their grades in the normal distribution with the mean of 2.2 and standard deviation of 0.6. How many of these freshmen have their grades between 2.0 and 2.5 inclusive? 2.Suppose that in an examination, the cut off scores for passing is 75 for 200 people. If the mean of the test is 84 with the standard deviation of

In the following diagram, AABC ~ AADE . E C 3 B 6 D 3. What is x? 4. What is the length of AC?(No decimal) 5. What is the length of AE?(No decimal)
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I need an explanation of why these two statements are true and give me examples to prove. If the augmented matrix [A b] has a pivot position in every row, then the equation Ax = b is inconsistent. If A is an m x n matrix whose columns do not span R m then the equation Ax = b is inconsistent for some b in R m I need more explanation than just using

Please show using excel functions if possible................................................................................................. \f
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Simple numerical or graphical summaries are referred to as Question 6 Select one: a. descriptive statistics. b. control statistics. c. explanation statistics. d. inferential statistics

\int \:x^5\left(x^6-5 ight)^{10} by making the substitution u=x^6-5

A $450,000 trust fund earns 8% compounded semiannually. It is to make perpetual payments at the end of every month. What will be the size of the monthly payments? $2,951 $2,453 $3,000 $1,800 $1,955

Which type of data needs to be collected to conduct the study of the significant difference between statistics test scores of college students who have had early statistic exposure than those college students without? and what techniques are best for collecting this kind of data?

"Average adult Americans are about one inch taller, but nearly a whopping 29 pounds heavier than they were in 1960, according to a new report from the Centers for Disease Control and Prevention (CDC). The bad news, says CDC is that average BMI (body mass index, a weight-for-height formula used to measure obesity) has increased among adults from

Im very confused about the discrete exponetial growth model. Im worndering if you could show me a detailed worked example of this and why you did each step i dont want any holes in my knoweledge. Please. please use the link to look at the infograph. look at the second infographic

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Can someone help me solve this manually by using BISECTION METHOD (5 iterations), REGULA FALSI/ FALSE POSITION METHOD (5 iterations), SIMPLE FIXED-POINT ITERATION (10 iterations) and NEWTON RAPHSON METHOD (5 iterations). 200 x 10 6 = 0.9 (20.7) (300) (4802) (x) (1 - 0. 59 x)
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Incorrect answer icon Incorrect. A survey of 2645 consumers by DDB Needham Worldwide of Chicago for public relations agency Porter/Novelli showed that how a company handles a crisis when at fault is one of the top influences in consumer buying decisions,with 73% claiming it is an influence. Quality of product was the number one influence, with 96%

19. Solve forx: log, x = 3 *m 6l 20. Solve for x to the nearest thousandth: \"Solve forx: logy(x +4) =3 = loga(x 3) f(0), f(=3), and f(20). JAf f(x) = x?=7x+4 , determine 3. Find the domain of: f(x)= 5]7- . Express your answer in interval notation and in set builder notation. 4x dy ia . Solve the system of equations
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Question 1 Given the following functions, evaluate each of the following: f(x) - 2 - 11x + 28 g(I) = I 4 (f + 9) (7) (f - g) (6) ( f . g) (8 ) = Question Help: (Video ( Message instructor Submit Question
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When we find a correlation between two variables, we can't be sure of the "direction of effect." By this, we mean: We don't know whether a caused b We donlt know ahtehr b caused a We don't know if a third variable (C) caused both a and b All of the above

Let f(x) = (x -p) + 2p, for a positive constant p. Use what you know about vertex form to find a formula for a downward-opening parabola whose vertex is 5 units to the right of the vertex of the graph of f and whose graph has not been stretched. y =
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Question 7 1 pts (Lesson 5.6: The Process Module.) As in the previous problem, drag-and-drop Create- Process-Dispose modules in that order, so that you obtain something like: Create 1 Process 1 Dispose 1 Click in the Process module; choose the "Seize Delay Release" option from the Action drop-down; and Add 1 resource from the Resources menu (it'll
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just choose the correct one form these options: The survival rate of new businesses after 10 years is approximately a)10% b)25% c)50% d)75%

Please show me a work and this is LOSS AND DISTRIBUTION class. The probability a risk has at least one loss during any given month is p. The prior distribution of p is uniform on the interval (0,1). The risk is observed for n months and during each month at least one loss occurs. After the observation period the Bayes credibility estimate of the
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Use the graph of f(a) = 2 sec a provided below to find the following: lim f(x) lim f(x) lim f(x) lim f(x) 3x 2 2 Use correct mathematical symbols and show all your work using methods from lectures presented in this class only. 4 0 2 -2 -4
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the triangle formed by the towns of Capernaum, Bethsaida and Chorazin in the region of Galilee. What did he say was interesting about that triangle region? Select one: a. Jesus performed most of his miracles there. b. Jesus avoided that area due to the Roman influence there. c. Jesus' ministry was not well received there. d. Jesus worked as a

If your auto-mechanic suggests 2 parts antifreeze to 3 parts water for your car radiator and your radiator holds 1.5 liters, how many liters of antifreeze should you use? What is the ratio to antifreeze?

suppose that the credit remaining on a phone card in dollars is a linear function of the total calling time in minutes when graphed the function gives a line with a slope of -0.14 there is $28.08 in credit remaining on the card after 22 minutes of cars how much credit was there after 15 minutes of calls

Approximate the integral using the indicated rule. (Round your answer to three decimal places.) z GfX; trapezoidal rule; n = 5 S X L] Additional Materials L Reading Submit Answer -/1 Points] DETAILS OSCALC1 7.6.302. Y NOTES \\ ASK YOUR TEACHER PRACTICE ANOTHER Approximate the integral using the indicated rule. 24 / x2 dx: midpoint rule; n = 6 0
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14 Derivatives and Shape of the Graph: Problem 1 (6 points) Let f(z) = 23 T2? 3. Fill in the values or intervals below. If there is nothing applicable for a given category enter NONE . For oc use infinity . For o0, use -infinity . To indicate a union of intervals, use U . interval(s) on which f is increasing E] interval(s) on which f is decreasing
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According to the National Institutes of Health, 11% of college students nationwide smoke cigarettes, having one or more cigaraettes during the past two weeks. A college president wonders if the proportion of students enrolled at her college that smoke is lower than the national proportion. In a commissioned study, 613 students are selected

Please help me solve this problem? My Courses A weight-loss program wants to test how well their program is working. The company selects a simple random sample of 85 individual that have been using their program for 12 months. For each individual person, the company records the individual's weight when they started the program 12 months ago as an
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A political campaign wants to test a marketing slogan for their Republican candidate for governor of your state. They hire you to first test it on local Republicans in your city. They tell you the sample only need be a few people. Your time is valuable, so you need to know if you randomly select 10 people on the street or at a storefront what's

. At 0.05 level of significance, is there evidence of a difference in proportion of DVD's purchased on the basis of the sales strategy used? Sales Approach ACTION DVD Personal Sales Call Telephone Total Purchase 19 27 14 60 Don't Purchase 81 73 86 240 Total 100 100 100 300 b. At 0.01 level of significance, is there evidence of a difference in

What is the correct mathematical description for the expression 25 5 + (6 x 2) 4.5? a 25 divided by 5 plus 6 times 2 minus 4 and 5 tenths b 25 divided by the sum of 5 and 6 times 2 minus 4 and 5 tenths c 25 divided by 5 plus 6 times the difference of 2 and 4 and 5 tenths d 25 divided by 5 plus the product of 6 and 2 minus 4 and 5 tenths

Jessica is selling books during the summer to earn money for college. She earns a commission on each sale but has to pay for her own expenses. After a month of driving from neighborhood to neighborhood and walking door-to-door, she figures out that her weekly earnings are approximately a linear function of the number of doors she knocks on. She

Find the area under the standard normal curve to the right ofz=2.27 z = 2.27 . Round your answer to four decimal places, if necessary.

Template 3: Portioning and preparation of ingredients Portioning and preparation of ingredients Cheese dishes Ingredients according to food production sequencing. Weight or measurement of ingredients. Cheese triangles with blackened cherry tomato sauce Cheese Triangles: Cheese (e.g., cheddar or feta) Egg (for binding, if necessary) Breadcrumbs

Table 3: Two Sample Hypothesis Test Analysis Research Question: Two Sample Hypothesis Test that Will Be Used and Rationale for Using It: State the Random Variable and Parameters in Words: State Hull and Alternative Hypotheses and Level of Signicance: Method Used to Analyze Data: Find the sample statistic, test statistic, and p-yalue: Conclusion
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Determine if the lines intersect and find the point of intersection. \f
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I need help with a STATS QUESTION!!! In the general population, patients who are recovering from bronchial pneumonia normally take a mean (average) of 4.75 days to leave the hospital, with a population standard deviation of 1.82 days. Medical personnel at a hospital are trying a new medication that is designed to ease breathing during recovery.

International Recruitment and Staffing Challenges
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What is the value of the differential if f(z) = x+2x- x = 8.9 and dx = 0.3. Round your answer to four decimals.
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