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Mathematics Questions and Answers April 04, 2023

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Both x and y denote functions oft that are related by the given equation. Use this equation and the given derivative information to find the specified derivative. Equation:x+7y=5 a) Given that d x / d y = 4 , find d y / d t when x=2 Enter the exact answer dy/dt = _____________________ b) Given that d y / d t = 4 , find d x / d t when x=3 Enter the

Chart 4.5.2.1 Box and whisker plots and five-number summaries of distributions A, B and C 0.00 0.02 0.11 0.32 0.86 A O O 0.11 0.37 0.48 0.58 0.93 B O 0.14 0.69 0.88 0.95 1.00 C - O o 0.2 0.4 0.6 0.8 The inter quartile range for B is AChart 4.5.2.1 Box and whisker plots and five-number summaries of distributions A, B and C A Which of these had a
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Let X be normally distributed with mean / = 3.3 and standard deviation o = 2.8. [You may find it useful a. Find P(X> 6.5). (Round your final answer to 4 decimal places.) .25 P(X > 6.5) points eBook References b. Find P(5.5 s X $ 7.5). (Round your final answer to 4 decimal places.) P(5.5 s X s 7 5) c. Find x such that P(X > x) = 0.0485. (Round your
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Help 10.2.27-LS Mouse weights. Find the mean and median for the data in the following table. Interval 41.5-43.5 43.5 -45.5 45.5-47.5 47.5-49.5 49.5-51.5 51.5-53.5 53.5-55.5 55.5-57.5 57.5-59.5 Frequency 2 7 12 18 19 18 15 5 2
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The demand curve for original Iguanawoman comics is given by q =(436 p ) 2 100 (0 p 436), where q is the number of copies the publisher can sell per week if it sets the price at $ p . (a) Find the price elasticity of demand when the price is set at $38per copy. (Round your answer to two decimal places.) (b) Find the price at which the publisher

Chapter 8 FRAPPY! Directions: Show all of your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Will using name-brand microwave popcorn result in a greater percentage of popped kernels than using storebrand
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n the United States, the generation of people born between 1946 and 1964 are known as baby boomers, and the generation of people born between 1981 and 1996 are known as millennials. Currently, 18 percent of the population are baby boomers and 27percent of the population are millennials. A random sample of 500 people will be selected. Let the

Calculation Question 1. The following table contains the homicide rate in Canada for the years 2018-2011. Calculate the standard deviation. Use the table provided and show your work using the applicable formula(s). (6 Points) Use a sheet of paper and show your calculations to answer this question. Enter values into the yellow highlighted cells.

If someone were to bet $1 on the second dozen numbers in the game of roulette 33 separate times, how many of these bets should they expect to win?

Statistics and Probability Assignments - STAT 154 X 5 STAT 154 Final Exam.pd X C Get Homework Help W X C UUUUUUUUUUUUUU8 X C Twenty-seven High-sch x * Course Hero X + X > C @ File | C:/Users/chine/Downloads/STAT%20154%20Final%20Exam.pdf GER C STAT 154 Final Exam.pdf 4/5 3. The number of people who prefer which political side and the state where
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What are the steps? Determine whether or not the alternating series converge or diverge. \f
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Here is a post on this week's discussion that needs a response with a question: Looking at all three methods, the method that I have preferred the most is the mixed method. I prefer the mixed method due to it having both quantitative and qualitative data. I feel as if both sets of data allows for a better understanding of research. For example, in

In a bottle-filling process, the amount of drink injected into 16 oz bottles is normally distributed with a mean of 16 oz and a standard deviation of .02 oz. Bottles containing less than 15.95 oz do not meet the bottler's quality standard. What percentage of filled bottles do not meet the standard? (Round your answer to 2 decimal places.) a.What

A promissory note for $800.00 dated January15, 2017, requires an interest payment of $100.00 at maturity. If interest is at 9% p.a. compounded monthly, determine the due date of the note. (Round down to the nearestday.)

Aconsutting group recently conducted a global survey of product teams with the goal of better understanding the dynamics of product team performance and uncovering the practices that make these teams successful. One of the survey ndings was that 39% of organizations have a coherent business strategy that they stick to and effectively communicate.
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1. IQ scores have a mean of 120 and a standard deviation of 16. Albert Einstein reportedly had an IQ of 170. Convert Einstein's IQ score to a z score. If we consider "usual IQ scores (95%) to be those that convert z scores between -2 and 2, is Einstein's IQ usual or unusual? How do you know? 2. Three students take equivalent stress tests. Find the

Please provide solutions thank you 1-16. Fill out the table below & use the Stepping Stone Method to find the subsequent tables. Table 1 13 50 17 $ 130 Ques. 1 Ques. 2 Ques. 3 8 8 Ques 4 Ques 5 80 Ques 6 8 50 100 80 70 300 1. a. 60 b. 80 c. 20 d. 100 2. a. 20 b. 30 C. 80 d. - 3. a. 20 b. 30 c. 80 d. - 4. a. 30 b. 40 c. 50 d. - 5. a. 40 b. 20 c.
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Please help me solve this question! All I need is the finished solution, so the quicker the better! The total cost {in hundreds of dollars} of producing a: calculators per day is given by the E equation. 1-?" E C(x}=+ ones nexsso E Perform the following calculations and g interpret the results. iumm 5\" Interpret the results. Gheose the correct
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12:44 Done myopenmath.com AA C Chapter 8: Confidence Intervals (Proportions) Score: 0/6 0/6 answered Progress saved Done . . . . Question 1 B 0/1 pt '0 3 8 99 G) Details 0.. You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 81%. You would like to be
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Listed below are the top 10 annual salaries(in millions ofdollars) of TV personalities. Find therange, variance, and standard deviation for the sample data. Given that these are the top 10salaries, do we know anything about the variation of salaries of TV personalities ingeneral? 38, 36, 34, 28, 26, 13, 10 7 6.6, 5.7

Suppose that the total cost (in dollars) for a product is given by C ( x ) =1600+160ln(2 x + 1) where x is the number of units produced. (a) Find the marginal cost MC function. MC =320 2x+1 (b) Find the marginal cost when160units are produced. (Round your answer to the nearest cent.) $

Consider the following. f ( x ) =12 x x 2 from x = 0 to x =6; 2 subintervals

Given that f (t) = -2t2 - 4t - 3 represents the rate at which the volume of a balloon is decreasing, in liters per minute, determine which of the following equations gives the volume of air in the balloon V after 5 minutes. OV (5) = 5 50 (-2+2 - 4t - 3) dt OV (5) = V(0) + 15 (-2+2 - 4t - 3) dt Ov (5) = V(0) + So (-2+2 - 4t - 3) dt OV (5) = 515
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Given that the two lines l1 and l2 intersect in the point A(1,2,3), find the equation of the plane containing these two intersecting lines. ( b ) ( 5 points ) Given that the two lines " : " = 3 + 21 , 4 = 5 + 31, 2 = 7 + 41. and 12 : 2 = 2 + 5. 4 = 1 + 25, 2 = - 1 - 45 intersect in the point. A( 1, 2, 3 ), find the equation of the plane containing
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis. y = 7x 3 , y = 7x, for x 0

A car drives down a road in such a way that its velocity (in m/s) at time t (seconds) is v(t)=t^1/2+2. Find the car's average velocity (in m/s) between t=2 and t=7.

You are comparing the variability in the final grades of 2 sections of MOS2242. For the 1st section, you have collected a sample of 10 final grades, which give a mean grade of 74.13 and a standard deviation of 9.12. For the 2nd section, you have collected a sample of 8 final grades, which give a mean grade of 72.57 and a standard deviation of 8.5.
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Chlorine concentration in a municipal water supply is a uniformly distributed random variable that ranges between 0.65 ppm and 0.99 ppm. (a) What is the mean chlorine concentration? (Round your answer to 2 decimal places.) Mean chlorine concentrationppm (b) Calculate the standard deviation. (Round your answer to 4 decimal places.) Standard

Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in the Learning Resources for this week. Based on the dataset you chose, construct a research question that can be answered with a one-way ANOVA. Once you perform your one-way ANOVA analysis, review Chapter 11 of the

Question: Note: Please pay careful attention to the data and each scenario given at the end of question (kindly enter all formulas when calculating/solving each part, as it will be crucial for me to understand the logic behind it). A random sample of size 10 was taken from the following population: Population Sample 1 106 110 2 103 104 3 102 102 4

An auto manufacturer has sold 50,000 vehicles with a defective gonculator. As required by law, the manufacturer has issued a recall notice and will replace the part at no cost to the customer. Based on similar recall notices in the past, the firm believes that for each of the 50,000 vehicle owners, there is a 30% chance that the owner will ignore

Google recently came in at number four on CNN Money's list of the 100 best companies to work for.Free gourmet lunches and snacks, freedom to bring pets to work, and free fitness classes are among some of the employee perks at Google.As part of the application process, each candidate must pass an entrance exam.The candidate scores on the Google

please help 11.3. 11-T Question Help The accompanying table shows results of challenged referee calls in a major tennis tournament. Use a 0:05 significance level to test the claim that the gender of the tennis player is independent of whether a call is overturned. Click the icon to view the table. Determine the null and alternative hypotheses. A.
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This is from a pyp but no answers were given, so i would like to know how to solve them. This is under stochastic processes. As i am weak in this, i will ask questions to clear my doubts when i have seen the answers Question 5. Expectation (20 marks) Let N be the number of distinct words that Victor Hugo knew, and assume these words are numbered 1
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Question 2: Company X wants to understand its cash flow for 2017 and 2018. The init 2017 is 170 and the sales growth rate is 6% per month. The unit cost for each item is 0 item costs 0.9 unit, two items cost 1.8 unit and so forth) and the unit revenue is 1.7. C cost as 50. Using an appropriate data table, calculate revenue, sales, variables cost,
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Match the following: List 1 List 2 A) Collaborative filtering 1) is nonparametric and does not assume a model or distribution. The algorithm simply performs calculations and makes predictions. B) The slope one strategy 2) is based on a parametric model which the attributes of each item in the data set to understand what fuels consumer ratings,

The piston diameter of a certain hand pump is 0.7 inch. The manger randomly selects 27 pristons and determines that the standard deviation is 0.0052 inch. Is there significant evidence for the manager to conclude that the standard deviation has decreased at the o=0.10 level of significance

MyUSF X G how to fin X SPSS Tuto X _ Acting Ass X Step 3 - G X Step 3 - Ex x _ Untitled d x Forgot Pas X M Reset you X Search Re: X G taking scr X + X -> C a usflearn.instructure.com/courses/1448336/assignments/8877329?module_item_id=18261483 USF EARN 2. For each variable, report appropriate measures of central tendency_(and measures of
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Ap stat 13.03 *No explanation needed 1) Operators who had both operations could not be used because this type of analysis requires each unit to be counted in one and only one cell. The null hypothesis is that the severity of the rodent problem is independent of the type of operator. The alternate hypothesis is that the proportion of turkey
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If you find that changes in the value of your dependent variable are related to changes in the value of your quasi-independent variable, then you can conclude that If you find that changes in the value of your dependent variable are related to changes in the value of your quasi-independent variable, then you can conclude that your experiment lacks

The A-B-C department of a large company makes three products (A, B and C). To determine the best production schedule, the manager has formulated the following linear programming model: A = quantity of product A; B = quantity of product B; C = quantity of product C Maximize 12 A + 15 B + 14 C (total profit: coefficients are net profit per unit in
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step by step answer and Interpretation using R software. dataset can be found is R library(sleuth3) ex2016 16. Bumpus Natural Selection Data. Hermon Bumpus analyzed various characteristics of some house sparrows that were found on the ground after a severe winter storm in 1898. Some of the sparrows survived and some perished. The data on male
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A feature of the Spearman-Brown formula is that it _____. Multiple choice question. is a specific application of a more general formula to estimate the reliability of a test that is lengthened or shortened by any number of items cannot be used to estimate the effect of the shortening of a test on a test's reliability does not permit a test

1. Fine the equation of the tangent line to f(x)= x^2+ 1 at p(2,5) 2. The displacement (in feet) of a particle moving in a straight line is given by s(t) = t^2 - 5t + 18, where t is measured in seconds. Find the instantaneous velocity when t=8

What is an example of lim sup n-> s n ? and what is an example of lim inf n-> s n ?

A one-to-one functionfis given in the form of a set of ordered pairs below: {(5,10),(0,2),(2,2),(8,6),(10,4)} What is the value off(10)+f^(-1)*(-2) ?

Researchers first important decision is selecting and recruiting the sample of subjects. Select one: True False

a). The results from a statistics class' first exam are as follows: The average grade obtained on the exam by its 45 students is an 85, with a standard deviation of 15 points. Answer the following based on this information: What grade is required in order to be in the top 30 percent? b). The results from a statistics class' first exam are as

I need help with this assignments Zoom Lecture X Math 263 (F X Math 11 (Fall x (8) How to d X Microsoft Of x Mail - Wode X Quiz: Zoomc X C Search Textb X + X C ilearn.laccd.edu/courses/118474/quizzes/825432/take G NEW D . . . # Apps 1 Discussion 1: Dagi.. D Question 2 2 pts Account In the recordings, it was proven that: the gradient vector is to
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If f(0)=2 and f'(0)=4, what is the equation of the tangent line at x=0?

can you show your work for this so I can understand it Let a be a real number, and suppose that lim f (x) = L. Let c be a real number, and xHJ prove that lim[c f (x)] = CL. xm Tip: First consider the case that c = 0, and apply Limit Law 6 (you can assume that Limit Law 6 holds, because we proved it in class). Then consider the case C 75 0. Note:
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En los experimentos que siguen esta clase de distribucin se pueden esperar dos tipos de resultados, donde cada repeticin del experimento no es independiente de los dems. Tips: La funcin de probabilidad de esta variable viene determinada por la frmula: p abrir parntesis X igual x cerrar parntesis igual fraccin numerador abrir parntesis tabla fila k

Please answer and provide an explanation for each of the following questions. Please show all work that was done as well. Thank you. (1) The graph below shows the graph of a function and its derivative; use it to nd an equation for the dashed line. Write the equation on the line below. ff Answer: (2) The plot below shows the graphs of two
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Suppose y ( t ) = 30 e^(3t) + 9 represents the number of bacteria present at time t t minutes. At what time will the population reach 100 bacteria? (Note: Answers are expressed in terms of the natural logarithm.)

Intravenous fluid therapy is stopped on a 17kg dog 36 hours after starting . The dog has received 1,020 ml in total What was the infusion rate ? A 60ml/kg/24hours B 40 ml /kg/24 hours C 50 ml /kg/ 24hours D 30 ml /kg/ 24hours

Vector Calculus

In R studio do the following questions # The Gamma Family The Gamma distribution is defined using two parameter $\alpha$ (the shape parameter) and $\beta$ (the scale parameter). We will try to visualize the gamma distribution for different choices of $\alpha$ and $\beta$. A random variable that that has the gamma distribution as it's probability

Please help with this question. Especially explain whether the assumptions would be reasonable. 2.? Urgent care Visits. Urgent care centers are open beyond typical ofce hours and provide a broader range of services than that of many primary care ofces. A study conducted to collect information about urgent care centers in the United States reported
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solve the following question Consider the data in Exercise 1.5 on page 13. Compute the sample variance and the sample standard deviation for both control and treatment groups. Reference Exercise 1.5: Twenty adult males between the ages of 30 and 40 participated in a study to evaluate the effect of a specific health regimen involving diet and
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11.Use the stem and leaf plot to answer the questions about the sample. 11. Use the stem and leaf plot to answer the questions about the sample. 3 5 8 9 mean 4 0 1 3 5 7 8 9 5 O 0 2 3 4 6 7 8 8 9 median 6 O 2 3 4 6 9 7 2 3 5 12. Construct a histogram of the data in problem 11
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Find all polar coordinates of point P where P =(3,-pi/4)

What steps need to be done to solve for this problem? Evaluate the following limit. Enter the exact answer in fraction form, if necessary. 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
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In[1]: In[1]: In[1: In[1]: In[1: In[1]: In[1]: In [ 1: Question 4. Let' do a re-cap of the three main methods for analytically constructing a confidence interval. Part a) Suppose we catch and release 70 common shrews, but not before measuring their tails. We get a sample mean of 3 cm. Suppose it is known from previous extensive research that the
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5.The scatterplot below shows data for the nine French fry orders from the previous problem, with the least-squares regression line displayed. Which of the following is the best estimate of the value of the residual for the point indicated by the arrow? \f\f
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I'm having a hard time which ones are the xbar, I, n, etc.. also I get stuck on how to get the p value. Can you please explain steps. W E E A housing official in a certain city claims that the mean monthly rent for apartments in the city is less than $1000. To verify this claim, a simple random sample of 59 renters in the city was taken, and the
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Forty percent of all Georgia residents prefer life in prison without parole over the death penalty for a person convicted of first degree murder. Among Georgia residents who are Asian American, 55% prefer life in prison without parole over the death penalty for a person convicted of first degree murder. Twenty-one percent of all Georgia residents
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Descriptive Statistics: Variable n Mean Std. Dev. Min. Q1 Median Q3 Max. Price 100 126,698 56,357 21,000 86,875 123,750 153,075 338,000 Size 100 1,526 557 370 1,158 1,410 1,760 4,050 Linear Regression Equation: Parameter Estimate Intercept 9,161 Slope (Size) 77.01 Model Summary: Statistic Value Correlation Coefficient r 0.761 Coefficient of

question 1

Ap stat 14.02 *No explanation needed a) Inference for regression on the population regression slope B is based on which of the following distributions? The t distribution with n 1 - degrees of freedom The standard normal distribution The chi-square distribution with n - 1 degrees of freedom The ( distribution with n - 2 degrees of freedomIn
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Question 2. Set the two variables below to estimates of what percentage of rides are less than 10 minutes in Boston and Manila. Find your estimates by visually assessing the histograms. Your solution should consist of only mathematical operations and numbers
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By looking at some of your favorite coasters, you determine that the optimal slope for the ascent, when the car is being pulled up the slope by a chain, is 0.7. The slope of the first drop that will be the most thrilling (without being dangerous) is -1.5. You decide to connect these two straight stretches, y = L1 and y = L2 , with a parabola of

All of the following statements regarding qualified domestic relations orders (QDROs) are correct EXCEPT A) a QDRO may specify the time at which the alternate payee will receive the plan benefit (assuming the type of distribution is allowed by the plan document). B) distributions made to an alternate payee under a QDRO outside of retirement

Sketch a continuous curve for which each of the following statements is true. (1) = 4, (0) = 2, (1) = 0 (1) = (1) = 0 () > 0 (, 1)(1, ) () < 0 (1,1) () < 0 (, 0) () > 0 (0, ) Remember to include scales in your graph. 13. The sum of a number and the square of another number is 27. Find the numbers so that their product is a maximum. 14. A

What is the probability that of 5 cards dealt from a well shuffled deck, 4 will be diamonds and 1 spade? a.) 143/39984 b.) 11/39984 c.) 11/16660 d.) 143/16660

A vacation resort has collected data on 150 resort guests to study their spending behavior. In particular, they are interested in whether their rewards program increases guest spending. Their data set includes the amount each guest spent during their 3-day stay, whether the guest traveled from out of state, number of children, number ofprevious
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The weight of a bag of potato chips is stated as 300 g. The amount that the packaging machine puts in each bag is normally distributed with mean 306 g and standard deviation 3.6 g. (a) (4 points) What is the proportion of all bags sold that are underweight? (b) (3 points) A "bargain pack" contains two bags. Find the probability that both are un-

please write (190701029) on the top of every page and please do it on paper with neat and clean writing thankyou plz yr ker de na Question # 2: Prove that the eigen values of (AB)C is equal to the eigen values of (BC)A
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Protein Control Chart 19 18 17 16 Protein (/100g) 15 14 13 12 2020-03-15 2020-03-20 2020-03-25 2020-03-30 2020-04-04 2020-04-09 Batch Date -LCL - - - LWL - - -CL - - - UWL - UCL Batch Data
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Homework Directions: 1. Open book, open notes, open collaboration. Do the problems without using technology excessively. 2. Do your own work. Write up your own solution, even though you may collaborate and discuss the solution with other individuals. That is, do not copy another student's work. 3. Show your steps/work to earn credits. 4. Copy

with 80% confidence, for sample proportion 0.58 and sample size 20, what is the upper confidence limit with 2 decimal places?

1. (20 points) Given the graph of the derivative of the function (y = f 0 (x)) on the interval (?5, 5), answer the following and justify your answers. (a) (5 points) List the intervals where f(x) is increasing and decreasing. (b) (5 points) Find the x-values of local extrema for f(x) and specify if they are local maxima or minima. (c) (5 points)
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1.) The test statistic of z = - 2.02 is obtained when testing the claim that p
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Suppose X has a normal distribution with mean 80 and standard deviation 5. What is the 90th percentile of X? 90 73.6 .90 86.4

a disk-shaped piece of fruit has a volume given by V=3.6pi r squared, where r is radius and v is volume. if the radius is increasing by 0.5 cm per week, and the volume is increasing at a rate of 25cm cubed per week, then find the radius. ROUND TO 2 DECIMAL PLACES. the radius is ??? cm

In the figure, the straight line is tangent to the graph of f(x). Find f(2) and f (2) f (2 ) = (Type an integer or a fraction. Simplify your answer.) 3 y = f(=) (0,2) f'(2) = (Type an integer or a fraction. Simplify your answer.) I Enter your answer in each of the answer boxes
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POSSIBLE POINTS: 15.15 A survey in Men's Health Magazine reported that 39% of cardiologists said that they took vitamin E supplements. To see if this is still true, the researcher selected 100 random cardiologists and found 36 took vitamin E. At an alpha level of 0.05, test the claim that 38% of the cardiologists took vitamin E. *Remember to show
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One hundred eighteen students were asked what type of color their bedrooms were painted: light colors, dark colors, or vibrant colors. The results were tabulated according to gender. Light colorsDark colorsVibrant colors Female202228Male10308 Find the probability that a randomly chosen student is male if the student's bedroom is painted with dark

Using Excel, show formula to properly solve the equation. Consider a Poisson distribution with an average of 3 customers per minute at the local grocery store. If X = the number of arrivals per minute, find the probability of more than 7 customers arriving within a minute.

1. Explain why, for a continuous random variable, P(X = k) = 0 for any number k. 2. Suppose that a certain battery is advertised to last for 5 years. Suppose further that the actual life time of the battery is approximately normally distributed with a mean of 5.4 years and a standard deviation of 0.3 years. Answer each of the following: a) Explain

Q.1) Given the attached data. Answer the following questions for a 6 period moving average. 1. Compute your forecast for period 51. The potential answers are: A: 8364.88 units. B: 4128.8 units. C: 11628.5 units. D: 6306 units. E: 6589 units. \f\f\fA 1 t At 2 9675 3 5464 4 4164 5 2797 6 LO OO N O UA W N P 13203 7 8066 8 11131 9 4277 10 4199 11 10
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The average weight of a package of planeter's peanuts is 16 oz with a standard deviation of 1.5 oz. Suppose we take a random sample of 50 packages. Blank #1: What is the standard error? Round your answer to 4 decimal places. Blank #2 : Find the t-score for a sample mean of 15.5 oz. Round your answer to 2 decimal places. Blank #3: How many degrees

I have only 20 min please answer

A factory produces plate glass with a mean thickness of4 mm and a standard deviation of1.1 mm. A simple random sample of 100 sheets of glass is to be measured, and the mean thickness of the100 sheets is to be computed. What is the probability that the average thickness of the100 sheets is less than 4.03 mm? Round your answers to 5 decimal places.

please help QUESTION 1 Use the following probability distribution for the next three questions. A graduate student in exercise science surveyed undergraduate students' weekly exercise habits. The following distribution gives the probability values for x, the number of days an undergraduate student exercised per week. [3 PTS] x P(x) 0 .02 1 .1 1 2
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From "How We Talk About the Achievement Gap Could Worsen Public Racial Bias Against Black Students:" How does the actual graduation rate of Black students differ from the coverage of test scores on racial achievement gaps? Group of answer choices Universities rely on the achievement gap data, whereas they do not account for student success rates.

Question 7: Find the missing data and Calculate the value of H calc Return to questh The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the nancial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this
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A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 95 % confident that his estimate is in error by no more than three percentage points question mark Complete

data filecaffeineexercisehr.savin the Resources. Refer to page 544 of your Warner text for context of this imaginary study. Step 1. Provide context for the caffeineexercisehr.sav data set. Include a definition of the specified variables, including factors, levels of each factor, and the outcome variable. Define the corresponding scales of
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While eliminating or rewriting items in a test during the test revision stage, a test developer must _____. Multiple choice question. balance the strengths and weaknesses across items retain the easy items and delete the difficult ones write a small item pool in the domain in which the test should be sampled make sure that the items being

now calculate the standard deviation for mechains a+ using the mean of 31.22

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