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Mathematics Questions and Answers April 05, 2023

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May need to use R/ R commander https://drive.google.com/file/d/158kM7FyAlpGT5LtgbQ4cBmmdz530lYEd/view?usp=sharing

please help me with this problem. im stuck Question a of zan pair The graph of a rational function f is shown below, Assume that all asymptotes and intercepts are shown and that the graph has no "hoks". Use the graph to complete the following. (at writh the equations for all vertical and horizontal asymptotes Enter the equertions using the and
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Statistics Canada conducts an annual survey to estimate the proportion of Canadians aged 20 - 24 years of age who are smokers. The most recent application of the Canadian Tobacco Monitoring Survey involved a random sample ofn=346Canadians aged 20 to 24 years of age. Each was asked for the smoking status. The number of 20 to 24 year-olds sampled

Q7. [17 marks] A researcher wishes to see whether the type of gasoline used and the type of automobile driven have any effect on gasoline consumption (measured in miles per gallon). Two types of gasoline, regular and high-octane, will be used, and two types of automobiles, two- wheel- and four-wheel-drive will be used in each group. There will be
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The local high school basketball team scored the following points per game during their The local high school basketball team scored the following points per game during their 20-game season. 79, 50, 58, 65, 70, 48, 82, 30, 74, 67, 84, 79, 79, 88 65, 70, 63 68, 61, 76 Step 1 of 4 : Find the mean of the given set of data. Keypad
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Weatherwise magazine is published in association with the American Meteorological Society. Volume 46, Number 6 has a rating system to classify Nor'easter storms that frequently hit New England states and can cause much damage near the ocean coast. A severe storm has an average peak wave height of 16.4 feet for waves hitting the shore. Suppose that

7) Let L={(2,-1,6),(2,-4,3),4,-13,1)}. a) Show why L does not generate the full vector space R%. (15 points) b) Find the equation of the subspace of R generated by L. (15 points)
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1. Given the following frequency distribution, compute for the following. Class Intervals frequency ( f) 30 - 34 10 35 - 39 14 40 - 44 26 45 - 49 35 50 - 54 23 55 - 59 19 60 - 64 15 65 - 69 6 70 - 74 4 a. Range b. Quartile deviation c. Average deviation d. Standard deviation 2. The following data show the respective ages, in years, of 10 male

Although attending college has always been expensive, the costs have continued to rise. A survey conducted in 2003 of 50 public four year colleges in the US found the average tuition to be $13,683 with a standard deviation of $2110. A recent survey of 40 US four year colleges (taken in 2023) found the average tuition to be $18,251 with a standard

Please help solve the following: 1. Find dy/dx and d 2 y/dx 2 . For which value of the parameter is the curve concave downward? x = a*sin(t), y = b*cos(t), 0 < t < 2, a > 0, b > 0 2. Sketch the curve and point the direction for x = 1 + sin, y = 2cos for 0

Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 40 male firefighters are tested and that they have a plasma volume sample mean of x =

could you help me check if they are correct? 9. Z is a standard normal variable. Find the value of Z in the following a. The area to the left of Z is 0.9279. Z>0.9279=1-0.9279=0.0721 b. The area to the right of -Z is 0.9834. 1-0.9834=0.0166 c.The area between -Z and Z is 0.7108. 0.05-0.7108=0.6608

Please provide the following information to check your understanding of the course material for this course: Part AExplain the relevance and significance of samples, sample sizes, and populations as they impact studies and research. Include a discussion about the various types of sampling used and examine common necessary elements of survey

1.The following list represents the number of nursing students enrolled in a particular nursing program between the years of 2010 and 2017, respectively: 425, 540, 621, 540, 410, 610, 510. Determine the mean, median, and mode of the number of the nursing students enrolled in the above program between 2010 and 2017. Show your calculations. Mean =

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Need help with calc please (3 points) Write a double integral double integral in polar coordinates equivalent to the integral 1/4y2 / f yx/m2 + 3/2 dscdy 0 9 DO NOT EVALUATE THE INTEGRAL
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Correlation and Regression A survey was conducted that asked participants to report their SAT scores and high school GPA. The following are the results: SAT Score GPA 1110 3.1 1350 3.7 1300 3.8 1140 2.8 960 2.9 1400 3.8 1440 4.1 1450 4.3 1260 3.5 1370 3.8 1410 4 1550 4.4 1520 4.3 1110 2.9 1230 3 1360 3.6 1380 3.9 1060 3 1320 3.6 1290 3.6 1080 3.2

UrTURI Use the graph below to determine the values of a at which the function is not continuous. The field below accepts a list of numbers or formulas separated by semicolons (eg. 2; 4; 6 or x + 1; x 1) The order of the list does not matter
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At noodles & company restaurant the probability that a customer will order a non alcoholic beverage is .47 find probability that in a sample of 11, non will order(round to 4 decimal places find probability at least 4 will order find probability fewer than 5 will order find probability all 11 will order All rounded to 4 decimal places

I am having trouble with this problem.

Employer - United States Army Map the United States Army's compensation strategy then compare it to that of Microsoft and SAS (exhibit 2.7). Summarize the key points of the United States Army's strategy. What are the key differences compared to the strategies of Microsoft and SAS?

9. The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of risk factors for obesity. Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Using the following data, a. compute the mean BMI, b. the standard deviation of BMI, c. the median

Currently Samsung ships 21.8 percent of the organic light-emitting diode (OLED) displays in the world. Let S be the event that a randomly selected OLED display was made by Samsung (a) Find P ( S ). (Round your answer to 3 decimal places.) P ( S )= (b) Find P ( S ). (Round your answer to 3 decimal places.) P ( S ) = (c) Find odds in favor of event

USA Today reported that Parkfield, California, is dubbed the world's earthquake capital because it sits on top of the notorious San Andreas fault. Since 1857, Parkfield has had a major earthquake on the average of1.1times every 22 years. (a) Explain why a Poisson probability distribution would be a good choice for r = number of earthquakes in a

Justin and Amanda took a Sociology of the Family class and learned that men and women have different views on a range of family issues. They wonder if men's and women's views on when one should get married are different as well. To investigate this possibility, they obtain a random sample of 25 single men and a random sample of 26 single women and

10.) a.) There is some evidence that political views are shaped by where one grew upin a city, in a suburb, or in a rural area. Using the "comm" variable (0 = rural; 1 = suburban; 2 = urban), we run a regression explaining where one lies along the abortion spectrum (0 = pro-life, 4 = pro-choice). Using the results below, assess that relationship.

A G B C H m D Identify segment DB radius O chord diameter external tangent internal tangent secant point of tengency center
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Suppose approximately75%of all marketing personnel are extroverts, whereas about50%of all computer programmers are introverts. (Round your answers to three decimal places.) (a) At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts? What is the probability that 5 or more are extroverts? What is the

Given the graph of f (x) above, find the following limits. To enter oo in your answer field, When you are in text entry mode (when your answer field has just one line), type the word infinity with a lower case i. When you are in equation editor entry mode (when your answer field has multiple lines with the equation symbol menu bar), choose the
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i need some help with this question Many people with diabetes need to take drugs to manage their conditions. Unfortunately, there are lots of side effects associated with each drug type, such as cardiovascular problems. The following contingency table shows the number of people who took two diabetes drugs, Avenida and Actos, and the number of them
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I'm stuck at the part of the formula where it says plus or minus t multiplied by the the standard deviation, divided by the square root of n? 4. Using your sample mean and sample standard deviation, construct an 80% confidence interval for the population mean number of hours of sleep on a typical night by hand (SHOW WORK). Write a complete
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1.The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. If we stipulate that a baby is premature if the length of pregnancy is in the lowest 4%, find the length that separates premature babies from those who are not premature. Premature babies often require special care, and this result

I need help with this question. How would I determine the test statistic and test for the decision at 99.9% confidence? in these data and using the dependent sample analysis approach, test the claim at 95% onfidence that the urine cotinine concentrations in the truck cab were higher than those at home. a) State the Null and Alternative Hypotheses
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PAPER WEIGHTS The cylindrical paper weight with dimensions shown has a mass of 606.7 grams. 6 cm 2 cm a. Find the density of the paperweight, Round, your answer to nearest hundredth, if necessary. g/ cm
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Triangle UVW is similar to triangle UYZ. Determine the length x. \f
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please answer this in R-Markdown. Thank you. STA 304H1F1003H Winter 2020 Assignment 2-Qnestion 3 Question 3. I: 13 marks} A certain manufacturing rm produces a product that is packaged under two brand names, for marketing purposes These two brands serve as strata for estimating potential sales volume for the next quarter. A. SHE of customers for
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Use the following information to answer the next 8 questions (Questions 1-8) : The manager of a discount store would like to determine whether there is a relationship between the number of customers who visit the store each day and the dollar value of sales that day.A random sample of n = 20 days was taken and the number of customers in the store
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In a survey, it is found that 70% of people prefer books over kindle. If 18 people are randomly selected, solve the following: a) what is the probability that exactly 11 people prefer books? b) What is the probability that more than 11 people prefer books? c) What is the probability that the group has at most 11 book lover
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Additional Instruction: Accepted characters : numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and

Data management is a key component of the evaluation. Data managers clean the data by looking for outliers, missing values, and implausible data. This is accomplished by visualizing the data. running descriptive statistics. creating a Frequency Histogram. all of the above

Flight of a Rocket The altitude in feet attained by a model rocket t seconds into flight is given by the function h ( t ). Find the maximum altitude (in ft) attained by the rocket. (Round your answer to the nearest foot.) h ( t ) =1/3 t 3 +4 t 2 +20 t +22( t 0) ft= Enclosing the Largest Area The owner of the Rancho Los Feliz has2520yd of fencing

Problem 10.7: In the 2013 Minneapolis mayoral election, there were the 36 candidates as well as no choice ("undervote") or disallowed multiple choices ("overvote"). This means there are 3838=1444 different possibilities for a voter's pair of first and second choices, and 383838=54,872 possibilities for the triplet of first-second-third choices. It

Determine whether you can use the normal distribution to approximate the binomial distribution. If you?can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you?cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults in a region found that 33?%
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If U = {1, 3, 5, 7, 9, 11, 13},which of the setsbelow is a subset of the Universal set, U? (choose all that apply) Group of answer choices {} {1, 3, 5, 7, 9, 11, 13} {1, 5, 7, 10, 13}

Please provide the following information to check your understanding of the course material for this course. Part AExplain the applicability and functionality of chi-square testing. Provide an original example of a data chart that illustrates this concept with appropriate explanation including hypotheses. Part BDiscuss the concept of data mining

(11 total marks) 1.A national poll found that 60% of Canadians believe that life exists on other planets. In a randomly selected sample of 300 Canadians: (3 marks) a.what is the probability that fewer than 200 people in the sample believe in extraterrestrial life? (4 marks) a.what is the probability that at least 160 people in the sample believe

A maintenance firm has gathered the following information regarding the failure mechanisms for air conditioning systems ( I have attached the photo of the question that has the numbers and data ) 1) A maintenance firm has gathered the following information regarding the failure mechanisms for air oonditloning systems electrical gas leaks problem
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Team Assignment Univision (the Spanish language broadcast television network)is planning its advertising stratregy for the Copa America CentenarioUSA 2016, the 100 years Anniversary Americas soccer competition held this year in ten cities across the USduring the month of June.The network plans to haveten 30-sec advertising slotsduring each match.

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table #11.2.6 ("Global health observatory," 2013).In addition, the proportion of deaths of females from all causes for the same age groups are also in table #11.2.6.Do the data show that the death from cardiovascular disease are in the
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he numbers 1 through 16 can be written into a four-b nber is vertically, horizontally, or diagonally adjacent to the number before it. The numbers ded res are given. 16 15 11 Eva starts to fill in the puzzle, but she makes a mistake and cannot decide how to continue. 16 15 Which number did Eva place incorrectly? Click here for a pdf of the grid to
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Based on information from the National Center for Health Statistics, the chart below shows he anticipated life expectancy for individuals sorted by the year they were born. Year of Birth Life Expectancy 1930 59.7 1940 62.9 1950 70.2 1965 69.7 1973 71.4 1982 74.5 1987 75 1992 75.7 Decide which variable should be the independent variable and which

Q 2.a . [1 point] What do you think the data distribution look like for the histogram of the mean costs of imaging at Civic campus? Justify your answer. Q2.b. [2 points] Suppose the analyst's calculations show that the mean cost of DI per patient at Civic campus is 213 CAD with standard deviation of 25 CAD. What is the probability that the mean

The well-known Gold list for cruise ships is based on respondents who rate the cruise according to Shore Excursions and Food/dining. As a statistician you are asked to specifically determine how much these two variables (expressed in percentage) explain the overall rating of the cruise (also in percentage terms). a.(1pt) Refer to scatter diagrams
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High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capability Challenge Exam. Students who score in the top 17 percent are recognized publicly for their achievement by the Department of the Treasury. Assuming a normal distribution, how many standard deviations above the mean

Need help with these questions. like how would they look like? Use the following to calculate a 90% confidence interval for the proportion of students who drive to campus. Frequency table results for Travel: Count = 121 Travel Frequency Relative Frequency Drive 38 047933884 Never go to campus 61 0.50413223 Other 2 0016528926 i'-?' = [Select] w
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Sampling distribution

Discrete measurement loses detailed quantitative information within its categorical groupings. (Re: Differentiate Continuous and Discrete Measurement) a. True b. False

Problem 9. Consider the following claim: 3 + 11 + 19 + . . . (8n -5) =4n? -n (a) Rewrite the claim using summation notation. (b) Prove that the claim is true for all n e N using mathematical induction
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Can I please get help with these two, if you can't do both, at least one is fine. Thank you. Use the functions f(x) - 2x2 + 2 and g(x) = 3x + 3 to evaluate the composite function. Ag(2)) Additional Materials ED eBook Composite Functions Composite Function Values C Example Video 7 Submit Answer 4 19. [0/1 Points] DETAILS PREVIOUS ANSWERS OSPRECALC1
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1.P(A student may pass or fail exams. If the probability that the student passes the exams is 7/10 find the probability that six students pass the exams if 10 people sat for the examinations

Costco sells paperback books in their retail stores and wanted to examine the relationship between price and demand. The price of a particular novel was adjusted each week and the weekly sales were recorded in the table below. Management would like to use simple regression analysis to estimate weekly demand for this novel using the price of the
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1. An effect size indicator that captures the magnitude of difference between two group means is known as ____________________.

You find a letter from the Black Hood to the town of Riverdale. "This is the Black Hood. I am the man who shot the adulterer at Pop's. I killed the child predator in Greendale. I shot the drug and sex addicted teenagers at Lovers' Lane. Riverdale is not innocent. It's a town of hypocrites, degenerates and criminals. My wrath is the price of your

Hi, please help me solve. Thank you! 10.3.7 A sample of 50 women is obtained, and their heights (in inches) and pulse rates (in beats per minute) are measured. The linear correlation coefficient is 0.206 and the equation of the regression line is y = 17.8+0.860x, where x represents height. The mean of the 50 heights is 63.6 in and the mean of the
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In the key points this week, you have read and watched videos about statistical concepts, especially applied to polling. You read a fictitious poll example about people's opinion on the constitutionality of prayer in schools. Here is another fictitious example: Suppose that on a specific date the Huffington Post published the following headline:

question is as below: Emerging evidence suggests that younger maternal age may increase the rate of stroke within 6 weeks of delivery. Let's use the following HYPOTHEI'ICAL dataset to explore this association (Table 1). Women were classified as aged 16-19 years, 20-34 or 35-44 at the time of delivery. Within each maternal age category, person-time
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The probability distribution below is for the number of radios sold at Kisumu City Sound Store in a week. Radios(X) 0 1 2 3 4 5 P(X=x) 0.03 0.20 0.50 0.20 0.05 0.02 Determine: The expected weekly radio sales(3 Marks) The variance of the weekly sales(4 Marks)

Petroleum pollution in oceans stimulates the growth of certain bacteria. An assessment of this growth has been made by counting the bacteria in each of5 randomly chosen specimens of ocean water (of a fixed size). The5 counts obtained were as follows: 64,41,65,49,51 Find the standard deviation of this sample of numbers. Round your answer to two

Determine the values of the following quantities. (Round your answers to three decimal places.) USE SALT (a) to.10, 12 (b) to.05, 12 (c) to.05, 29 (d) to.05, 60 (e) to.005, 60
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Can somebody explain me how to solve this hypothesis test exercise, and what formulas should I use ? Individually, it generates in Excel a series of 35 numbers that allow you to obtain information about the amount spent monthly in a family of socio-economic level ( low , medium or high ), determines the following : 3000 8500 19000 3000 8500 20000

Adults and high school students were asked three trivia questions. The number of correct answers given by each participant was recorded.Below is a table showing the results.What is the probability that a randomly selected participanthad 2 correct answers given that he/sheis a student?(Round to two decimal places as needed). Number of Correct

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To estimate a population mean with a confidence interval, a researcher must estimate a range of values for t. Group of answer choices True False

Find the specific truss member Problem 1 -3 Find the specific truss member and state if it is in compression or tension. 1. Find BD (5 points) B 3 m E 3 m 4 m A O C D 40 KN 70 KN 4 m
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Calculus OL V1 Part B - Bailey, Victor Ginte All chan 1. Find the area of the region bounded by the curves y = sin"| , y = 0, and x = 4 obtained by integrating with respect to y. Your work must include the definite integral and the antiderivative. (10 points) B i U Font Family - AA A 2. Set up, but do not evaluate, the integral which gives the
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Table 1. Observed frequencies Gender Colour preference Male Female TOTAL Black 36 25 61 Red 26 28 54 Silver 18 17 35 TOTAL 80 70 150\f
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You can solve this manually or use python, either is fine. Thanks! Problem 1. Principal Component Analysis. Consider the following dataset: N
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Define a point estimate for a proportion. Define an interval estimate for a proportion. Explain how an interval estimate is more informative than a point estimate by solving the following, providing the TI commands, and comparing the two. When asked if marriage is becoming obsolete, 782 out of 2004 randomly selected adults who responded to a 2010

Find the indicated area under the standard normal curve. To the left of zequals =- 0.82

Concerns about climate change and CO 2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 32 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. (a) If the true mean is .9130 with a standard deviation of 0.0040, within

Identify the tree type s of data you must take into account to ensure an accurate cost estimate. Which of the following are potential applications or benefits of program data ? Select all apply. 1. Answer questions about developments and production that may eliminate. 2 explain odd variations or outliner to retain all points in your data set. 3.

Suppose that we have S = {(x(i), y(i))} from i=1 to n with x(i) {0, 1}^d and y(i) {1, 1}. Let : {0, 1}^d {0, 1} be a "target function" which "labels" the points. Additionally assume that is a DNF formula (i.e. is a disjunction of conjunctions, or a boolean "or" of a bunch of boolean "and"s). The fact that it "labels" the points simply means that

If two samples A and B had the same mean and standard deviation, but sample A had a smaller sample size, which sample would have the wider 95% confidence interval?

1. (Bonus) Let S be an nonempty and bounded set and x = sup S and x is not element of S. Prove that x is an accumulation point of S.

Evaluate. 14. iint D cos sqrt(x ^ 2 + y ^ 2) * dA , where D is the disk with center the origin and radius 2 15. iint R arctan(y / x) * dA where R=\ (x,y)| 1

A random sample of320medical doctors showed that164had a solo practice. (a) Let p represent the proportion of all medical doctors who have a solo practice. Find a point estimate for p . (Use 3 decimal places.) (b) Find a90%confidence interval for p . (Use 3 decimal places.)lower limit upper limit Give a brief explanation of the meaning of the

Thank you for your time and help.

1. Jeremy Mixture. Show that for likelihood f (x ) and mixture prior TT ( 0 ) = ETTI ( 0 ) + ( 1 - E ) T2 ( 0 ) , 0 EQ , the posterior is a mixture TT (0| 20) = E'm1(0|20) + (1 - E') 12(0|2) where f (x| 0) T. (0) mi(x) mi(x) = f(x|0)
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Please solve this please(the course name is STA410H1F/2102H1F )

1.We are told that 8% of college graduates, under the age of 25 are unemployed. Use an appropriate normal transformation to calculate the probability that at least 200 out of 215 college graduates under age 25 are employed. A. 0.2912 B. 0.1075 C. 0.7088 D. 0.8925 2.In stratified random sampling, the population is first divided up into mutually

data link: https://drive.google.com/file/d/1KT2I7NsO-AzhwHC2bQWfwrcpuXNXZHLA/view?usp=sharing Problem 2 - (Download Survey Data) The Student News Service at Clear Mountain State University (CMSU) has decided to gather data about the undergraduate students that attend CMSU. CMSU creates and distributes a survey of 14 questions and receives

When a rocket is 2 kilometers high, it is moving vertically upward at a speed of 300 kilometers per hour. At that instant, how fast is the angle of elevation of the rocket increasing, as seen by an observer on the ground 5 kilometers from the launching pad?

6. Fast Food: A fast-food restaurant estimates that the mean sodium content in one of its breakfast sandwiches is no more than 920 milligrams. A random sample of 44 breakfast sandwiches has a mean sodium content of 925 milligrams. Assume the population standard deviation is 18 milligrams. At = 0.10, do you have enough evidence to reject the

here is my question 2.-Copy. and paste. a 90% confidence interval for the mean price of all automobiles/homes/apartments . from . model/location . 1 . in the space . provided. . Answer the following questions regarding this printout: a.-What assumptions are necessary for this confidence interval to be valid? Make sure Location.N - Lo-90% CI -
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1) Explain how I can convert between the 2 exponential equations y = AB T y = Ae KT 2) How can I find the growth rate from the formula y = AB T

Set up the integral that gives the area of the region below. Do NOT evaluate. Additional : a. Use vertical triangles , b. Use horizontal triangles \f
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1) According to the National Center for Education Statistics, the average U.S. undergraduate tuition at four-year institutions during 20092010 was $12,470. Using this value as the population mean and $2,100 as the population standard deviation, answer the following questions. a. If the tuition amounts follow a normal distribution, what is the

1.Let X be the continuous ramdom variable whose probability density function is f(x)= {1/6 (x-5), 7

Use the regular polygon tool on Geogebra to make a regular pentagon, then make a point not touching the pentagon and label that point O. Use the distance or length tool to show the length of one side of the pentagon. then use any tools necessary, make a dilation reflection of the pentagon centered at O with a stretching coefficient of 4. Hide any

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