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Mathematics Questions and Answers April 11, 2021

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Probabes soluciones de los siguientes sistemas: 2xy=1 2xy=0 x+y=0, x+y=1. \f
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11.Let x be a random variable that represents the level of glucose in the blood (milligrams per deciliter of blood) after a 12 hour fast. Assume that for people under 50 years old, x has a distribution that is approximately normal, with mean =71and estimated standard deviation =44. A test result x <40 is an indication of severe excess insulin, and

The accompanying table describes the random variable x, the numbers of adults in groups of five who reported sleepwalking. Answered Complete parts (a) through (d) below. eadline: S Click the icon to view the table. a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. . .. (Type an integer or a decimal. Do not round.) b. Find
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i) \frac{1}{4}-\frac{1}{5} =. ii) \frac{1}{3}-\frac{1}{4} =. iii) \frac{1}{7}-\frac{1}{8} =

Given OC = Ace with 3. 1 +
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As an example, what if your yearly interest is 12%, but you want to calculate 6 months (not years). You would need to convert the yearly interest into monthly interest by dividing interest by 12. Assume that the interest rates shown are yearly, but the periods are monthly. Calculate the present value. Hint: adjust C1! Write =PV(interest, years, 0,

A small hospital has 110 full-time employees. Ten percent are out with influenza. How many employees are sick and how many are healthy?

Clier URC Inde C Fine V Oop Cou * Uplc 1 15 B ha.ca th-122-c01-c02 / assignment10 / 18 Previous Problem Problem List Next Problem Assignment10: Problem 18 (1 point) Write the complex number z = -4 + 8i in polar form: z = r(cos 0 + ising) where T = and 0 =] The angle should satisfy 0 of multiplicity 2 with corresponding eigenvector v. Find ) and V.
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In a certain city, the monthly water bill amount is normally distributed with mean 25 and standard deviation 15. A sample mean of 36 bills was selected. What is the probability that the average water bill amount for the sample was between 26.4 and 30 ? Prices for flights from a certain airport has mean 96.23. Lets say the the prices have standard

Estrategia de oficinas que utiliza una corporacin multinacional que se caracteriza por la toma de decisiones desde su sede central, y que transmite las instrucciones operativas a la divisin correspondiente, para que a su vez sta lo replique y coordine sus representaciones en el extranjero

A study compared three display panels used by air traffic controllers. Each display panel was tested for four different simulated emergency conditions. Twenty-four highly trained air traffic controllers were used in the study. Two controllers were randomly assigned to each display panel?emergency condition combination. The time (in seconds)
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Use the following table to answer the questions. Reason for Dropping a University Course Frequency Probability Too difficult 53 not interested 17 Change in time schedule 20 Change of major 14 Family-related problems 33 Long Drive 89 Miscellaneous 54 No meaningful reason 35 1. What is the variable under study? Is it a random variable? 2. How many

Kindly assist with the following question. Autosave .w 'n' E (j v L5 r3: : Documents Home Insert Draw Design Layout References Mailings Review View Acrobat '~;' Tell me i3 Share Cl Comments 'l r r g' 4 L V calm" \"3"- AaBbCeDdEe AaBchDdEe AaBbCCD( AaBchDdEt Bb ) 7 ., Paste y ' .7 , ' Nuvmal No Spacing Headingt Heading 2 1 Styles Dictate Create and
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3. 4. Let a and b be integers. Show that if @ and b are even, then a + b is even. Definition: An integer is odd if it can be written as 2k + 1 for some integer k. Determine whether the following statement is true. If it is, show that it is true. If not, show that it is false. Statement: Let a and b be integers. If a is odd, then a + b is odd. .
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What are the key characteristics of the graph of f (@) = cot x? Select all correct statements. O The y-intercept is (0, 1). The range of the function is (-oo, - 1] U [1, co). The x-intercepts occur every , with one x-intercept at (#, 0). O Asymptotes occurs every 7, beginning at x = 0.= V3 What is the value of cos 1 ( T)? Enter your answer in the
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To limit the risk of losses, a bull may employ the use of stop-loss orders . This allows the investor to specify a price at which to sell the associated security should prices begin to move downward. Additionally, these investors may purchase puts to help compensate for any risk present in a portfolio. Bulls can also use diversification to

type 2 error occurs when the null hypothesis is rejected when in fact it is true. (true or false

two days. hint [see Example 3] 72. Bacteria A bacteria culture starts with 1000 bacteria. Two hours later there are 1500 bacteria. Find an exponential model for the size of the culture as a function of time in hours, and use the model to predict how many bacteria there will be after two days. 73. @& TInvestments In 2004 the Scottish Widows Bank in
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The process of evaluating scientific data and making predictions in an organized manner about the probabilities of an outcome is called assessment

Below is the linear regression model for a dataset model1 summary(model1) > modell summary (model1) Call: Im(formula = Employed ~ GNP. deflator + GNP + Unemployed + Armed. Forces + Population, data = ldata) Residuals : Min 10 Median 30 Max -0.55324 -0. 36478 0. 06106 0. 20550 0.93359 Coefficients: Estimate Std. Error t value Pr(>Itl) (Intercept)
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Can you please help answer the following question? In a chi-square test of independence, the value of the test statistic was x2 _ 15.652, and the critical value at a= 0.025 was 11.1433. Thus, we must reject the null hypothesis at a = 0.025. True False
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Please have clear steps thank you 8. If (4, 16) is a point on the graph of f(x) = x2, what point is on the graph of f(x) = (x + 3)2 8. (5 points)
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BigDeal Real Estate surveyed price per square foot in valley and foothill of Hoke-a-mo UTAH. Based on BD Data are price per square foot equal to alpha 0.01? Valley 109 116 106 157 147 105 173 153 137 110 Foothills 75 154 156 105 215 130 219 193 147 169 Hint given: is this paired data or data from indepenent population?

Uploadneed help MATH 1127 Summer 2020 TR 1:00-3:45 CRN 61272 Karima Newman Quiz: Final Exam Time Limit: 01:15:00 Submit Quiz This Question: 1 pt 11 of 17 (8 complete) This Quiz: 17 pts possibl Winning the jackpot in a particular lottery requires that you select the correct five numbers between 1 and 29 and, in a separate drawing, you must also
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1) [8 points] (13.1.1) Ignoring variable Clinic, consider a model for the log odds that respiratory status is classified as good, including the main effects of treatment and time (where time is regarded as a categorical variable with 5 levels), and their interaction. Use generalized estimating equations (GEE), assuming separate pairwise log odds
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Use the quadratic formula to solve 2x^ 2 + 2x + 5 = 0. a) x = -1.16 and x= 2.16 b) x = -2.16 and x = 1.16 c) x= -3.16 and x= 3.16 d) x = -4.16 and x = 4.16

A company manufactures two products. If it charges price pi for product i, it can sell qi units of product i, where q1 = 60 3p1 + p2 and q2 = 80 2p2 + p1. It costs $5 to produce a unit of product 1 and $12 to produce a unit of product 2. How many units of each product should the company produce, and what prices should it charge, to maximize its

We are standing on the top of a 240 feet tall building and launch a small object upward. The object's vertical position, measured in feet, after t seconds is h(t)=16t2+224t+240. What is the highest point that the object reaches? ________ feet

Section B - 12 marks Let's start working on a Portfolio. Read the Portfolio tipsheet and research the Business Portfolio. Our discussions in class will also help you do section B. Here is what you include for this part of the assignment. Statement of Originality (example - "Please do not print/copy without my prior permission. Some of the content
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A logistics support manager of one company prides himself in his ability to find and deliver necessary products from the USA to Canada in less than 4 calendar days, on average. Periodically, the company selects a random sample of orders and determines the number of days required for delivery. Based on that information, it is decided whether the
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Consider the following sample data: x: 25, 18, 20, 12, 22 y: 27, 20, 25, 15, 22 a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your intermediate calculations to at least 4 decimalplaces and final answer to 2 decimal places.) Covariance - b. Calculate the correlation coefficient. (Round

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A bag contains 13 yellow marbles. In how many ways can 8 yellow marbles be chosen?

A certain card established an account charging 2.4261% interest per month on the account balance. Interest charges are added to the balance each month, becoming part of the balance on which interest is computed the next month. If you pay off the original purchase charge within 3 months, all interest charges are canceled. Otherwise, you are liable
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The scores on an economics examination are normally distributed with a mean of72and a standard deviation of15. If the instructor assigns a grade of A to14%of the class, what is the lowest score a student may have and still obtain an A? (Round your answer to two decimal places.)

I have been given two sets of the probability density function (PDF ) for a uniform distribution on a disk of radius p. Besides, I have been told to refer to the sample R codes below to complete the questions. One student suggested the following set of PDFs: 2'" 0
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Introduction Your instructor will provide you with an Excel spreadsheet showing DeVry admissions data for the past semester, for 100 admissions advisors.Each row represents one admissions advisor, and the includes data on five variables: STARTS represents the number of students who started classes at DeVry. APPLICATIONS represents the number of
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A researcher studying correlates of obesity performed a linear regression analysis of the relationship between Body Mass Index (BMI) and Diastolic Blood Pressure (DBP). Part of his SPSS output is given below. ANOVA" Model Sum of Squares Mean Square F Sig Regression 7101 283 7101.283 53.513 000 Residual 156056.622 1176 132.701 Total 163157-905 1177
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please help In the Health ABC Study, 544 subjects owned a pet and 1976 subjects did not. Among the pet owners, there were 298 women; 954 of the non-pet owners were women. Find the proportion of pet owners who were women. Do the same for the non-pet owners. (Be sure to let Population 1 correspond to the group with the higher proportion so that the
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Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the percentage of successful field goals a professional basketball player makes in a season. A random sample ofprofessional basketball players gave the following

Please use loose paper & pen. Give an correct answer with detail explanation. Thank you. QUESTION 5 (5 MARKS) If the total cost function for a manufacturer is given by: 692 TC = -+ 6000 9+2 Find the marginal-cost function. -END OF QUESTION PAPER
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24. 24. The medication order is to administer fentanyl 0.002 mg/kg/dose. The child weighs 18 pounds. Available: a vial labeled fentanyl 0.05 mg/mL How many ml will you administer
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An investment strategy has an expected return of 21 percent and a standard deviation of 15 percent. Assume investment returns are bell shaped. a. How likely is it to earn a return between 6 percent and 36 percent? (Enter your response as decimal values (not percentages) rounded to 2 decimal places.) Probability- b. How likely is it to earn a

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Which term is used by both quantitative and qualitative researchers to refer to the abstractions under study? Question 19 options: A) Theory B) Construct C) Variable D) Concept

Segments AB A B , BC B C , and AC A C are tangent to G G at points D D , E E , and F F , respectively. If AD=6 A D = 6 , DB=x+3 D B = x + 3 , CE=x1 C E = x 1 , and EB=7 E B = 7 , find the length of AC A C

Prompt: The Remainder Theorem can be used as a shortcut to find the remainder when a function is divided by a binomial. Answer the followingquestions in complete sentences. Why is the Remainder Theorem used to determine whether a linear binomial is a factor of a polynomial? How can you determine whethera linear binomial is a factor of a polynomial

470. Triangle ABC' has AB = AC. The bisector of angle B meets AC at D. Extend side BC to E so that CE=CD. Triangle BDE should 100k isosceles. Is it? Explain. 469. It is given that the sides of an isosceles trapezoid have lengths 3 in, 15 in, 21 in, and 15 in. Make a diagram. Show that the diagonals intersect perpendicularly.

6: (11% of Assignment Value) The figure depicts the sum of two velocities Find the component of vtot along the x axis in m/s. the angle at thhe start of vector a is 26.5 degrees and the angle at the end of vector b is 30 degrees is vtot x =

1. Find the volume of the cone below. 2. Find the volume of the cone below. 11 in 4 m 11 m 5 in 3. Find the volume of the cone below. 4. Find the volume of the cone below. 8 in 14 m 07- 14 m 3 in 5. Find the volume of the cone below. 6. Find the volume of the cone below. 10 cm 12 km 10 cm 10 km MacBook Air
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mathxl.com Colosseum LSU Tigers Purple Arch & Logo Pullover Hoodie Homework Do Homework - Tom Campis Math 150 Statistics Fall 2019 Tom Campis & | 9/25/197 Homework: Section 3.3 Homework Score: 0.5 of 1 pt 1 of 5 (5 complete) HW Score: 66.67%, 3.3 Yx 3.3. 1- T Question He Recently, a random sample of 13-18 year olds was asked, "How much do you
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Model Building Goal is to develop a model with the best set of independent variables Easier to interpret if unimportant variables are removed Lower probability of collinearity 8 above statement is true above statement is false

his Question: 1 pt 14 of 14 (6 complete) This Quiz: 14 pts possible Several years ago, 40% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,045 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the
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Suppose we are interested in purchasing a multi-functioning inkjet printer. We want to see how the performance factors related to the price of the printer. Collected data from 20 printers include below information. PPM: Printing rate (pages per minutes) for a set of print jobs Price: Typical retail price (in dollars) at the time of the review.
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Since 95% of the goods do not have a flaw,what is the overall expected loss from flaws on the average good produced? The Bivariate Table becomes Flaw----------Flawed------Unflawed Flawed--------0.015----------0.025 Unflawed------0.01------------0.95 Explanation: We need to find a bivariate table We know that we are told P ( flaw )=0.05

CD = DA and AE = EB mLFDE = 40 A DF = 11 mLFBE = [?10 D E C B F
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9.3.4 A study was conducted that measured the total brain volume (TBV) (in mm ) of patients that had schizophrenia and patients that are considered normal. Table #9.3.5 contains the TBV of the normal patients and table #9.3.6 contains the TBV of schizophrenia patients ("SOCR data oct2009," 2013). Compute a 90% confidence interval for the
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The owner of Progressive Builders is examining the number of solar homes started in the region in each of the last 7 months: Month June July Aug. Sept. Oct. Nov. Dec. Number of homes 16 17 25 28 32 43 50 (a) Plot these data. (b) Develop the linear estimating equation that best describes these data, and plot the line on the graph from part (a) (let

Two dice are rolled. If the sum of the numbers showing on the dice is odd, player A wins $1 from player B. If both dice show the same the number, player A wins $3 from player B. Otherwise player B wins $3 from player A. Is this game fair?

An investor invested in 9 different investments. The dollar returns on the different investments are probabilistically independent, and each return follows a normative distribution with mean $50,000 and standard deviation $10,000. There is a 1% chance that the total return on the 9 investments is less than what value? What is the probability that

(ii) Let D : {(13:90 E R2 : $2 + 3,12
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Find the monthly payments for the following. Then state the total purchase amount including interest. Finally, state the total interest paid. 32) 30-year home mortgage for $400,000 at 4.25% that compounds monthly 33) 15- year home mortgage for $400,000 at 4.25% that compounds monthly

Design an ERD with entity types for projects, specialties, and contractors. Add relationships andror entity types as indicated in the following description. Each contractor has exactly one specialty. but many contractors can provide the same specialty. A contractor can provide the same Specialty on multiple projects. A project can use many
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Can someone help me with these questions? Tuesday: Guided Practice with Polygons T X The red quadrilateral in the diagram is formed using the midpoints of the blue rectangle. Give the coordinates of each midpoint. A: B: C: T(0,2b) A C(2a,2b) D: What is the most specific name for the red quadrilateral formed by connecting the midpoints of the blue
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Factor by the trial-and-error method. Check your answers using FOIL. 2xsquaredminus21xplus19

Directions: Answer the questions below. Make sure to show your work and justify all your answers. 13. Suppose O is an angle in the standard position whose terminal side is in Quadrant I and sin = 85- Find the exact values of the five remaining trigonometric functions of 0
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Fuel consumption is commonly measured in miles per gallon(mi/gal). An agency designed new fuel consumption tests to be used starting with 2008 car models. Listed below are randomly selected amounts by which the measured MPG ratings decreased because of the new 2008 standards. Find therange, variance, and standard deviation for the sample data. Is

Answers with methods Question 3 A newspaper conducted a statewide survey concerning a proposal to raise taxes in order to prevent budget Partially correct cuts to education. The newspaper took a random sample (assume it is an SRS) of 1100 registered voters Mark 1.0 out of and found that 418 would vote to raise taxes. Let p represent the proportion
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Need help 4 Maya cut a length of wood into strips to make 5 small 1 foot = 12 inches. picture frames. She used 14 inches of wood for each You can use frame. For another project, she cut another length of multiplication and wood into 3 strips of 1 foot each and 4 strips of - foot addition to solve this each. How much wood, in inches, did Maya use
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Please answer with steps shown PROBLEM I a. An industrial plant needs to make 5,000 parts per day to meet demand. Each month c0ntains 20 working days, each of which allows for 3 separates 8-hour shifts. i. If a worker can produce 10 parts/hour, how many workers are needed on each shift (5 points)? ii. If each shift has 100 workers, what is the
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What is a slope? How is a slope determined? Explain the four different values of slope and what types of lines you expect to see on the graph. Finally, how can we tell if two lines are parallel, perpendicular, or neither just from their equations?

A cell phone company offers 18 different voice packages and 11 different data packages. Of those, 8 packages include both voice and data. How many ways are there to choose either voice or data, but not both?

At Litchfield College of Nursing, 81% of incoming freshmen nursing students are female and 19% are male. Recent records indicate that 70% of the entering female students will graduate with a BSN degree, while 90% of the male students will obtain a BSN degree. If an incoming freshman nursing student is selected at random, find the following

***ONLY USE THE INFORMATION GIVEN TO ANSWER THE QUESTIONS ANY OUTSIDE FORMULAS, OR WAYS OF SOLVING THE ANSWER WILL BE REJECTED MUST BE DONE ON PAPER WITH WORK SHOWN!!!!*** To find the x-intercepts of a function set y = 0 and solve for x. To find the y-intercepts of a function set x = 0 and solve for y. When finding the?domain, remember: The
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$2. (10 p) Consider the matrix formed by five vectors a;: 0 0 -3 1 09 09 0 A = (a a, as a, as) = in obvious notation. -2 -1 1 -1 0 3 9 0 -12 (i) Find a basis for the column space of A. (ii) Express the non-basis vectors a,, if any, as a linear combination of the vectors found in item (i). (iii) What's the rank of A? (iv) What is the dimension of
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Suppose a university wished to offer a certain course. The administration felt that the course might be more effective if taught with alternative teaching methods. Four different teaching approaches were tested. Students registering for this course were randomly assigned to one of four teaching methods. Furthermore, there were an equal number of
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In a test of the effectiveness of garlic for lowering?cholesterol In a test of the effectiveness of garlic for lowering cholesterol, 42 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their levels of LDL cholesterol (in mg/dL) have a mean
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This image shows sediments in the Yosemite Valley, from when they form in a rockfall (A) to their transport ~9 km downstream (D). What explains the change in the roundness of the particles as they move downstream? Question 19 options: More rounded particles are present further upstream, where water moves more quickly More rounded particles have

Can you explain the probability could be used to help solve other management-type questions/problems. I'm trying to think of something at work, past or present, where I could apply the techniques in the example to assist in making the best decision. If you can give me an example on about life experience, the difference in product/issue where this
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please help me answer the following: CASE 6 20. A panel of government agents is tasked with reevaluating the criteria in order to definitively diagnose a patient with Ebola virus infection. The panel decides to raise the serology criteria from an antibody titer of 64 to an antibody titer of 128. How will this influence the incidence and prevalence
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How do you Find the complement of the claim and state which is H 0 and which is HA p less than 0.62

In a completely randomized experimental design, 6 experimental units were used for each of the 4 levels of the factor (i.e., 4 treatments). Whether the average of atleast one of the three treatments(groups) signi cantly di er needs to be tested at = 0 . 05. State appropriate null and alternate hypothesis. Fill in the empty cells in the table.

Are data at the ratio level of measurement quantitative or qualitative

A profit is realized in a operation when: a. food and beverages are sold b. sales are generated c. beverages are sold d. expenses are less then total sales

Starting at timet=0 , cars arrive at a car wash according to a Poisson process with rate ofcars/hour. At any given moment, the car wash is either free or occupied. The car wash is initially free at timet=0 . If a car arrives at the car wash when it is free, the car is serviced immediately. Service lasts for1/4hours, during which the car wash is

Use the Tornadoes data and your statistical expertise to answer the questions: Is it reasonable to claim that on average October has less tornado-related deaths than April (per year)? 9. What test/procedure did you perform? a. One-sided t-test b. Two-sided t-test c. Regression d. Confidence interval 10. What is the P -Value/margin of error? a.

What is the point estimate for the population mean of breast cancer incidence rates for non- Hispanic white women in USA? Round the table values to two decimal places/100k

Answer the following questions based on a blood-pressure study group with normally distributed data that has a mean of 130 mmHg and a standard deviation of 20 mmHg. 1.If high blood pressure is defined as 140 mmHg or greater, what is the probability of having high blood pressure? 2.Would it be unusual for a person to have high blood pressure? Why

Please provide detailed responses for part a and b. 3. (a) Use deniton to check if the following transformation is linear or not. T(E) = E + (b) Write A = [TED T(2) Tk) . Show that this matrix does not correspond to T
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A forwarder has a shipment of aluminum tubing with the height of 90 inches which is also the internal height of the 40-ft standard container. The shipment can fit in different types of a 40-ft container. Which of the following would be best to use in this case, considering all factors, including cost and safety of the cargo? Select one answer. The

Misalnya kita memiliki nilai-nilai hasil ujian statistik dari sebuah kelas yang besar ini dihitung rata-ratanya adalah 74 dan simpangan bakunya sebesar 8. a.Berapa besar probabilitas bahwa bila diambil sebuah cuplikan acak sebanyak 10 pelajar akan memperoleh rata-rata hasil ujian lebih besar dari 80 b.Berapa besar probabilitas bahawa seorang

10. Two dice are rolled randomly. What is the probability that the sum will be a 7? 11. A coin is flipped 10 times in row. What is the probability that the coin will be a heads each time
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For this assignment, please answer the following chapters questions; Ch 6 - Review Questions 16, 20, 23, 27-28

The three hundred Grade 7 and 8 students at a middle school participate in a math challenge. 60% of the students pass the challenge. 138 of the students are in Grade 7. The probability of randomly selecting a Grade 7 student that failed the challenge is 28%. Determine the probability that a student failed, given that the student is in Grade 8. a)

This Question: 4 pts 17 of 25 (15 complete) This Test: 100 pts Question He The data given to the right includes data from 42 candies, and 10 of them are red. The company that makes the candy claims that 29% of its candies are red. Use the sample data to construct a 95% confidence interval estimate of the percentage of red candies. What do you

Thank you for your assistance. (Please show all steps. Write neat, clear and organized for partial points). 1. A shoe manufacturer must decide whether to merge with a larger company to make more investments. If they merge and it is a good sales year, there will be a $810,000 profit; if they merge and it is a poor sales year, there will be a
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E ENG4CC 10 / 15 132% + 16. Fill in the table. Show your work and keep answers exact. (4 marks) Degrees Radians 110 17. Determine the values of 0 if 050
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please solve with steps PROBLEM 3 Jim's department at a local department store has tracked the sales of a product over the last ve weeks. Compute a three-week moving average, a three-week weighted moving average(using the weights 0.2, 0.3, and 0.5), and exponential smoothing(A1pha = 0.3) for weeks 4, 5, and 6. Compute the MAD for the forecasting
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. Seizures (Adult & Peds) o Types o Diagnostics o Provoked vs. unprovoked o Triggers o Driving with epilepsy
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TESt: Historical counting SyStemS G 1hr15mins X Progress saved Submit and End 25 points possible 4/13 answered 0 Question 11 v E 2 The following number is a BASE-4 NUMBER. Convert this to a base 10 number and enter your answer in the box. 101331 (Remember, the above number is in Base 4!) 1:] > Next
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