17.6657.6637.9820.6558.6713.5241.8339.2843.7326.3850.8633.650.772.641.110.702.180.411.801.051.630.992.691.72Send data to calculator V-0.12813.5982152.222442.157814.455127.90065.543275.29441.24471.279926.1162136.813457.878Send data to ExcelXCurrent stock price(in dollars)ŚFigure 141.5-10.5-010X20xX304050Earnings per share(in dollars)XWhat is the slope of the least-squares regression line for these data? Carry your intermediate computations to at least four decimal places and round youranswer to at least three decimal places. (If necessary, consult a list of formulas.)60X A financial analyst is examining the relationship between stock prices and earnings per share. She chooses sixteen publicly traded companies at random andrecords for each the company's current stock price and the company's earnings per share reported for the past 12 months. Her data are given below, with xdenoting the earnings per share from the previous year and y denoting the current stock price (both in dollars). A scatter plot of her data is shown in Figure 1.Also given is the product of the earnings per share and the current stock price for each of the sixteen stocks. (These products, written in the column labelled "xy", may aid in calculations.)Earnings pershare, x(in dollars)36.7949.8430.6530.1717.6657.6637.9820.6558.6713.5241.8339.2843.73Current stockprice, y(in dollars)1.431.560.811.400.772.641.110.702.180.411.801.051.63ху52.609777.750424.826542.23813.5982152.222442.157814.455127.90065.543275.29441.24471.2799Current stock price(in dollars)32.5+1.5+10.5+010203040+50Earnings per share(in dollars)60

Answered: 17.66 0.77 57.66 2.64 37.98 1.11 20.65…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The 2nd picture is the question
An elecu ility wishes to examine the relationship between temperature and electricity use in its service region during the summer months. The bivariate data below give the maximum temperature (denoted by x, in degrees Fahrenheit) and the electricity use (denoted by y, in thousands of kilowatt hours) for a random sample of sixteen summer days. The data are shown in the Figure 1 scatter plot. Also given is the product of the temperature and the electricity use for each of the sixteen days. (These products, written in the column labelled "xy", may aid in calculations.) Electricity Temperature, use, y (in thousands of kilowatt xy (in degrees Fahrenheit) hours) 97.0 300.7 29,167.9 400- 89.2 304.2 27,134.64 375+ 99.4 385.0 38,269 75.9 284.1 21,563.19 350- 71.4 274.3 19,585.02 325- 77.8 283.3 22,040.74 300- 83.9 263.4 22,099.26 275- 73.5 231.1 16,985.85 250- 81.0 325.8 26,389.8 225- 82.2 296.3 24,355.86 72.4 292.0 21.140.8. Electricity use (In thousands of kilowatt hours)
please use the calculator method ti 83 or 84 Several insurance adjusters were concerned about the unusually high estimates from Fosbert's U-Bet Repair Station. They obtained the following data: Car Number 1 2 3 4 5 6 7 8 Fosbert's Estimate 2.1 4.5 6.3 3.0 1.2 5.4 7.3 9.3 Nickles' Estimate 2.0 3.8 5.9 2.8 1.3 5.0 6.5 8.6 Estimates are in hundreds of dollars. At a .005 level of significance determine whether the adjusters can conclude that Fosbert's is significantly higher than Nickles'. State hypotheses, P-value, and conclusion.
B₁ is an estimator of B₁ a. True O b. False
please answer the question in the photo, charts also attacthed in second photo
An intelligence test that has a maximum time for completion of 45 minutes was recently administered to a group of 21 people. Their respective times for completion (in minutes) were as follows. 22, 29, 31, 31, 31, 33, 36, 36, 37, 37, 37, 37, 37, 41, 41, 41, 42, 42, 43, 43, 44 Send data to calculator Send data to Excel Frequency 8. 8. 7 6- 4 4 2. 1 20 25 Time for completion (in minutes) 30 35 45 40
Which of the following is not a good interpretation of a seasonal index of 1.26 for fall quarter sales? O a. Fall quarter sales are 26 perbent higher than the annual average. O b. Fall quarter sales represents 1.26 times the annual average. O c. Fall quarter sales represents an increase of 26 percent over last year's annual average. O d. Fall quarter sales average 126 percent of annual sales.
70 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 10 10 1 0.1 17 2 10 0.1429 27 8. 0.1143 35 4 7. 0.1 42 ? 0.1286 51 6 0.1 12 0.1714 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week?
Give an interpretation for the following data.
Johnson Filtration, Inc., provides maintenance service for water-filtration systems throughout southern Florida. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson performed the service. The revised data follow. Time bo + b₁ Months + b₂ Type + b3 Person Round your answers to three decimal places. bo b₁ b₂ b3 Repair Time in Hours 2.8 3.0 4.7 1.9 2.9 4.8 4.2 4.9 4.3 4.4 0000 Months Since Last Service 2 6 8 3 a. Develop the estimated regression equation to predict the repair time given the number of months since the last maintenance service, the type of repair, and the repairperson who performed the service. Assume that ₂ = 1 if the type of repair is electrical and 3 = 1 if Dave Newton performed the service. Enter negative value as negative number. 2 7 9 8 4 6 Type of Repair Electrical Mechanical Electrical Mechanical…
Suppose that we want to determine if the average amount of timespent online by the students is lessthan 4.5 hours/day. To this end, weconduct a survey of students and askthem how long they spend online perday. We obtain the following results:4.1, 4.3, 4.3, 4.5, 4.6, 4.3, 4.1, 4.6,4.7, 4.6, 4.7, 4.1, 4.3, 4.3, 4.5, 4.6,4.3, 4.1, 4.6, 4.7, 4.6, 4.7, 4.5, 4.6,4.3, 4.1 Assume that the number ofhours spent online has a normal distribution. Test your hypot
Which of the following is an example of causation? Birthdays cause people to age. Aerobic exercise causes increased heart rate April 15 causes people to pay taxes. Sunshine causes people to spend the day outdoors

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