Distance from the beach, x (in miles) Selling price, y (in thousands of dollars) 313.4 250- x x 5.8 5.7 271.4 12.2 198.4 350- 4.0 320.9 9.9 228.7 5.4 270.8 5.3 246.4 11.9 197.8 16.5 224.3 Selling price (in thousands of dollars) 300 200 10.8 281.1 150 14.0 257.0 0 8.9 299.4 5.4 210.9 11.5 192.4 Figure 1 8.6 233.0 10.3 272.6 Send data to calculator Send data to Excel #+ 10 15 Distance from the beach (in miles) x The least-squares regression line for these data has a slope of approximately -5.58. Answer the following. Carry your intermediate computations to at least four decimal places, and round your answers as specified below. (If necessary, consult a list of formulas.) (a) What is the value of the y-intercept of the least-squares regression line for these data? Round your answer to at least two decimal places. (b) What is the value of the sample correlation coefficient for these data? Round your answer to at least three decimal places. Distance from the Selling price, y beach, x (in mila) [In thousands of dullur) 5.00 3134 5.7 2/14 12.2 195.4 4.0 320.9 9.9 225.7 5.4 270.5 5.3 745.4 11.9 197.5 16.5 224.3 10.5 281.1 14.0 257.0 п.п 299.4 5.4 210.9 11.5 192.4 0.6 233.0 ד.תן 7775

The question is, What is the level of measurement and is it a discrete or continuous variable? Highest year of school completed 0-20. Actual number of years 97. IAP, 98. DK, 99. NA

Define relative efficiency?

Use the following for questions 6-7: A random sample of 40 companies on the Forbes 500 list was selected and the relationship between sales (in hundreds of thousands of dollars) and profits (in hundreds of thousands of dollars) was investigated using regression. A least-squares regression line was fitted to the data using statistical software, with sales as the explanatory variable and profits as the response variable. Here is the output from the software: Dependent variable is Profits R-squared = 66.2% = 466.2 with 40 2 = 38 degrees of freedom Variable Constant Sales Coefficient -176.644 0.092498 s.e. of Coefficient 61.16 0.0106 P-value 0.0050 ≤0.0001

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P-Value means

Each week, Heidi puts money from her paycheck Into her savings account. The table below shows the number of weeks after Heidi's first deposit and the balance of the account. Za Number of Weeks (x) Account Balance () $15,000 $15,306 0. 21 3. $15,384 $16,550 7. $16,800 If the data is modelod with a Iinear best-ft equation, which statement represents the rate of change of the equation? A The beginning balance of the savings account is 514,819. The beginning balance of the savings account is $15,000. The balance of Heidi's savings account increases by approximately $153 each week. The balance of Heidi's savings account increases by approxlmately $275 cach week:

We're trying to find a range of values for the average amount of money that Americans have in a savings account. Would this be an example of point or interval estimation? O Point O Interval

An economist wants to determine the relation between one’s FICO score, ?, and the interest rate (in percent)  of a 36-month auto loan, ?.   Credit score,x                    Interest Rate(percent), y 545                                    18.982 595                                    17.976 640                                    12.218 675                                    8.612 705                                    6.680 750                                    5.150 (a) What is the best fit line that could be used to predict the interest rate?   (b) Interpret the slope and vertical intercept.  (c) How would you determine if your best fit line is a good fit for this data? Explain using at least two methods

DETAILS BRECMBC9 6.111.022. Consumer Purchase 21. [-/1 Points] In the year 2008, the United States was just entering a major recession. You are researching how various consumer prices changed in the ten-year period starting in 2008 and ending in 2018. Suppose you have located the following chart listing various consumer purchases and their costs in 2008 and 2018, as well as the percentage change based on the 2008 prices. Unfortunately, portions of the chart are missing. Fill in the blank spaces to complete the chart for your story. Round percent answers to the nearest tenth of a percent. Round dollar amount answers to the nearest whole dollar. Single-Family Home median resale price (for a particular month) A particular compact car MSRP for the manual transmission Pair of Jeans easy fit, stonewashed A particular fast food hamburger Average price at company-owned restaurants 2008 $237,300 $20,200 $ $44.70 $2.97 2018 $290,900 $59.95 $3.96 Percent Change 13.2% % MY NOTES % ASK YOUR TEACHER…