mcs3500 a2

NING SYSTEM (ACADEMIC) Series forecasting for Business || The F-test used in testing the significance of a regression model is O a. Upper tailed test O b. Two tailed test O c. Lower tailed test O d. None OUS PAGE

After graduation, you take a position at Top-Slice, a well-known manufacturer of golf balls. One of your duties is to forecast monthly demand for golf balls. Using the following data, you developed a regression model that expresses monthly sales as a function of average temperature for the month: Click the icon to view the additional data. a. Show how the â and ɓ values of - 337.0 and 88.9 were calculated. Calculate the slope coefficient, ɓ (enter your responses as whole numbers). (755)(63110) 4252000 Б 12 = 88.9 (755) 50665 12 Monthly sales - 337.0+88.9 × (average temperature) Calculate the intercept term, â (enter your responses rounded to one decimal place). â= 5259.2 -88.9 × 62.92 = - 337.0 b. Use the regression forecasting model to forecast total golf ball sales for June and July 2018. Average temperatures are expected to be 73 degrees in June and 82 degrees in July. The forecast of total golf ball sales for June 2018 is (Enter your response rounded to the nearest whole number.)…

a) Using the trend-projection (regression) method, develop a forecastfor the sales of Volkswagen Beetles in Nevada through year 6.b) What is the MAD?~c) What is the MSE?

After graduation, you take a position at Top-Slice, a well-known manufacturer of golf balls. One of your duties is to forecast monthly demand for golf balls. Using the following data, you developed a regression model that expresses monthly sales as a function of average temperature for the month: Monthly sales=-202.2+86.5x (average temperature) Click the icon to view the additional data. a. Show how the a and 6 values of -202.2 and 86.5 were calculated. Calculate the slope coefficient, b (enter your responses as whole numbers). (745) 12 12 2 =86.5 More Info March 2017 April May June July August September October November December January 2018 February Monthly Sales 5,300 3,990 5,700 6,520 7,600 7,420 Print 6,710 4,870 3,990 3,900 3,320 2,670 Temperature 51 56 Done 64 80 79 87 83 67 58 41 39 40 X

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Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month Gershe collected the data shown in the following table 17 on 18 ne solve this Calculator Ask my instructor ! 1 Q This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for forecasting is (round your responses to four decimal places): Y=0+0x F1 @ 2 W F2 #3 C 80 F3 $ 54 4 888 F4 do 5 % Maroon 5 TV Appearances Demand for Guitars 14 FO A 6 MacBook Air F6 & 1 7 8: F7 00 * 8 358 57 7 368 4 9 6 DII FB ( 9 DD F9 ) 0 O A F10 Clear all ? C F11 + 11 = Check answer F12 delete

Need both b and c

Regression analysis. The owner of a small hardware store has noted a sales pattern for window locks  that seems to parallel the number of break-ins reported each week in the newspaper. The data are: Sales: 46 18 20 22 27 34 14 37 30Break-ins: 9 3 3 5 4 7 2 6 4a. Plot the data to determine which type of equation, linear or nonlinear, is appropriate.b. Obtain a regression equation for the data.c. Estimate average sales when the number of break-ins is five.

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The following data relate the sales figures of the barin Mark Kaltenbach’s small bed-and-breakfast inn in Portand, tothe number of guests registered that week:WEEK GUESTS BAR SALES1 16 $3302 12 2703 18 3804 14 300 a) Perform a linear regression that relates bar sales to guests (notto time).b) If the forecast is for 20 guests next week, what are the salesexpected to be? PX

A study to determine the correlation between bankdeposits and consumer price indices in Birmingham, Alabama,revealed the following (which was based on n = 5 years of da ta):• LX = 15• Lx2 = 55• Lxy = 70• Ly = 20• L/ = 130a) What is the equation of the least-squares regression line?b) Find the coefficient of correlation. What does it imply to you?c) What is the standard error of the estimate?

145) help with this please!!

eBook Problem 6-23 (Algorithmic) The medical community unanimously agrees on the health benefits of regular exercise, but are adults listening? During each of the past 15 years, a polling organization has surveyed americans about their exercise habits. In the most recent of these polls, slightly over half of all American adults reported that they exercise for 30 or more minutes at least three times per week. The following data show the percentages of adults who reported that they exercise for 30 or more minutes at least three times per week during each of the 15 years of this study. Year 1 2 3 A 4 5 5 6 6 7 2 A 4 9 10 11 12 13 14 15 Percentage of Adults Who Exercise 30 or more minutes at least three times per week 41.2 45.1 47.3 45.6 46.6 44.5 47.8 50 48.1 49.1 50.1 52.1 50.8 54.6 52.4