JOURNAL Describe what happens to fox)=2" as x approaches
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A: Given Data: To disprove the following statements.
Q: 2. Solve the boundary-value problem dr² v(0,t) = y(5,t) = 0, y(x,0) = 0, yx,0) = 5 sin mx.
A: ytt=4yxxy0,t=y5,t=0yx,0=0ytx,0=5sinπt
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A: gx=log2x+3+1fx=log2x Note: We are allowed to solve one question at a time.
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Q: a) y = 3 sin 2x b) 1 y = cos(x-4-3 COS
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Q: inverse Laplace transform F(s) ¹{F(s)} of the given function. 36 s²+36
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Q: a. Write the equation of a circle whose area is 36π and whose center is at (4, 7). b. Find the area…
A: a. Area of a circle with radius r is πr2 . So, here πr2 = 36π => r2…
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Q: Find all x € Z that satisfy 742 = 18x + 3 (mod 44)
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Q: 2. Solve the boundary-value problem = 4, y(0,t) = y(5,t) = 0, y(x,0) = 0, y₁(x,0) = 5 sin mx. 2d²y…
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Q: Use Euler's method to approximate the solution to the following initial value problem d=y-t², y(0) =…
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Q: 2x1 - 3x1 6х2 X3 = -38 - X2 + 7x3 = -34 -20 -8x1 + x2 - 2x3 X2 =
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- Several states have argued that the 65-mph speed limit has no justification and have refused to enforce it. The federal Department of Transportation (DOT) believes that the 65-mph limit saves lives. To illustrate its contention, the department regressed the number of traffic fatalities (Y) last year in a state on the state’s population (X1), the number of days of snow cover (X2), and the average speed of all cars (X3). The results are shown below. Table 10: Model Summary Model R R Square Adjusted R Square Std. Error of the Estimate 1 .821 a .780 .613 3.258 a. Predictors: (Constant), population, days of snow, average speed Table 11: Coefficients Coefficientsa Model Unstandardized Coefficients Standardized Coefficients t Sig. B Std. Error Beta 1 (Constant) 1.4 2.957 .473 .584 Population .00029 .00003 .0034 9.667 .000 Days of Snow 2.4 .62 .759 3.871 .000 Average Speed 10.3 1.1…RELEVANT Magazine (a culture magazine) keeps in touch and informs their readers by posting updates through various social networks. These updates take up a large part of both the marketing and editorial teams’ time. Because these updates take so much time, marketing is interested in knowing whether reducing posts (updates) on Facebook (a specific site) will also lessen their fan interaction; if not, both departments may pursue using their time in more productive ways. The weekly number of posts (updates) and fan interactions for Facebook during a 9-week period are recorded in Table. Compute the covariance and correlation between Facebook posts (site updates) and fan interactions. The data are stored in the data file RELEVANT Magazine. Facebook Posts (site updates) and Fan InteractionsFacebook posts (updates), x 16 31 27 23 15 17 17 18 14Fan interactions, y 165 314 280 195 137 286 199 128 462A manufacturing company that has just located in a small community will pay two million dollars per year in salaries. It has been estimated that 60% of these salaries will be spent in the local area, and 60% of the money spent will again change hands within the community. This process, called the multiplier effect, will be repeated ad infinitum. Find the total amount of local spending that will be generated by company salaries.
- An experimental psychologist measured the length of time it took for a rat to successfully navigate a maze on each of 5 days. The results are shown in the table. Create a line chart to describe the data. Do you think that any learning is taking place?Day 1 2 3 4 5Time (seconds) 45 43 46 32 25Introductory Statistics 3rd edition - 8.34 p-values For each graph, state whether the shaded area could represent a p-value. Explain why or why not. If yes, state whether the area could represent the p-value for a one-sided or a two-sided alternative hypothesis. (images are the graphs)# Load any R Packages you may needlibrary(mosaic)library(tidyverse)library(moderndive) The house_prices dataset from the moderndive R package contains data on over 21,000 houses from King County, WA. Because the most important piece of information for anyone on the market for a home is the price of the home, we’ll treat price as our outcome (y) variable. 1 Construct a scatterplot of the house price (y) versus the number of bedrooms per house (x). Describe the relationship between these variables (direction, strength, form, unusual features). # Paste your code here 2 Fit a linear regression model of price (y) as a function of bedrooms (x). Report the regression table, and interpret the estimated coefficient for bedrooms (i.e., the slope of the regression line). # Paste your code here 3 For a multiple regression model of price (y) as a function of both bedrooms (x1) and sqft_living (x2 - see the help page for the definition of this variable). Report the regression table, and interpret…
- this class is so confusing please help ! I need to pass! Psychology researchers have demonstrated that memory is usually improved by studying material on multiple occasions rather than one time only (distributed practice effects). A recent study examining this effect studied two different delay intervals. Group 1 had a one-day interval between study sessions and group two had a one-week gap between study sessions. Results for each study condition are presented below: One-Day Gap n = 20 M = 26.4 SS = 395 One-Week Gap n = 20 M = 29.6 SS = 460. Do the data indicate a significant difference between the two study conditions? Evaluate this hypothesis at the .05 significance level? · State your hypotheses · State the critical t-value · Calculate the t-value for the sample mean difference · State your conclusion about the null hypothesis Show all calculations.Dixie Showtime table shows how weekly gross revenue is dependent on two variables the television and newspaper advertising expenses, is that correct? Discuss by givingthree new examples.PLEASE ONLY RESPOND TO PART D, E, AND F THE REST HAS BEEN SOLVED The average waiting time for a patient at an El Paso physician's office is just over 29 minutes, well above the national average of 21 minutes. In order to address the issue of long patient wait times, some physician's offices are using wait tracking systems to notify patients of expected wait times. Patients can adjust their arrival times based on this information and spend less time in waiting rooms. The following data show wait times (minutes) for a sample of patients at offices that do not have an office tracking system and wait times for a sample of patients at offices with an office tracking system. Without WaitTracking System With WaitTracking System 24 31 67 11 17 14 20 18 31 12 44 37 12 9 23 13 16 12 37 15 (a) What are the mean and median patient wait times (in min) for offices with a wait tracking system? mean minmedian min What are the mean and median patient wait times (in min)…
- The Conch Café, located in Gulf Shores, Alabama, features casual lunches with a great view of the Gulf of Mexico. To accommodate the increase in business during the summer vacation season, Fuzzy Conch, the owner, hires a large number of servers as seasonal help. When he interviews a prospective server, he would like to provide data on the amount a server can earn in tips. He believes that the amount of the bill and the number of diners are both related to the amount of the tip. He gathered the following sample information. Customer Amount of Tip Amount of Bill Number of Diners Customer Amount of Tip Amount of Bill Number of Diners 1 $ 6.05 $ 73.22 1 16 $ 3.30 $ 23.59 2 2 4.50 28.23 4 17 3.50 22.30 2 3 1.00 10.65 1 18 3.25 32.00 2 4 2.40 19.82 3 19 5.40 50.02 4 5 5.00 28.62 3 20 2.25 17.60 3 6 4.25 24.83 2 21 1.40 41.80 5 7 .50 6.25 1 22 3.00 20.27 2…The Conch Café, located in Gulf Shores, Alabama, features casual lunches with a great view of the Gulf of Mexico. To accommodate the increase in business during the summer vacation season, Fuzzy Conch, the owner, hires a large number of servers as seasonal help. When he interviews a prospective server, he would like to provide data on the amount a server can earn in tips. He believes that the amount of the bill and the number of diners are both related to the amount of the tip. He gathered the following sample information. Customer Amount of Tip Amount of Bill Number of Diners Customer Amount of Tip Amount of Bill Number of Diners 1 $ 7.00 $ 48.97 5 16 $ 3.30 $ 23.59 2 2 4.50 28.23 4 17 3.50 22.30 2 3 1.00 10.65 1 18 3.25 32.00 2 4 2.40 19.82 3 19 5.40 50.02 4 5 5.00 28.62 3 20 2.25 17.60 3 6 4.25 24.83 2 21 5.50 44.47 4 7 0.50 6.24 1 22 3.00 20.27 2…Computers As a quality control manager at Texas Instruments, you find that defective calculators have various causes, including worn machinery, human error, bad supplies, and packaging mistreatment. Which of the following graphs would be best for describing the causes of defects: histogram; scatterplot; Pareto chart; dotplot; pie chart?