Hudson Marine has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows.Total YearlySalesYearQuarter 1Quarter 2Quarter 3Quarter 41817113392112017563132724107441927231786522343021107625372821111727403329129a. Compute the centered moving average values (Four-Quarter Moving Average) for this time series (to 3 decimals).Centered MovingtSalesAverage1821731136.750435116207178891011243241327×

Given: Quarterly sales values for the seven…

Answered: Hudson Marine has been an authorized…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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Find the mean hourly cost when the cell phone described above is used for 240 minutes.
Suppose the table below gives the average tuition and fees at 2-year and 4-year state schools in a particular state. Values are adjusted to 2019 dollars. Academic Year 4-year state school 2-year state school 2005-06 $5,904 $2,661 2006-07 $6,066 $2,539 2007-08 $6,289 $2,604 2008-09 $7,222 $2,901 2009-10 $7,738 $3,065 2010-11 $8,035 $3,117 2011-12 $8,154 $3,108 2012-13 $8,497 $3,075 2013-14 $8,578 $3,025 2014-15 $9,390 $3,326 2015-16 $10,004 $3,504 2016-17 $10,474 $3,663 2017-18 $10,789 $3,830 2018-19 $10,874 $3,859 2019-20 $10,900 $3,907 Here is a graph of the information from the table. a. What is the absolute change in tuition and fees at this state's four-year institutions from 2005-06 to 2019-20? b. What is the relative change in tuition and fees at this state's four-year institutions from 2005-06 to 2019-20? Round to the nearest whole percentage…
According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found fourteen recently sold homes in Sun Beach and fourteen recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the twenty- eight houses. Appreciation rates in percent Sun Beach 10.4, 8.0, 8.0, 151, 9.9, 11.8, 14.0, 8.9, 9.6, 12.6, 13.8, 10.8, 9.3, 11.1 North Arden 13.5, 9.6, 7.2, 11.1, 5.3, 11.2, 7.1, 10.3, 6.7, 10.9, 6.6, 9.4, 8.2, 5.5 Send data to calculator 144Hz Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.05 level of significance, that μ₁, the mean appreciation rate of houses in Sun Beach, is higher than μ2, the mean appreciation…
According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found fourteen recently sold homes in Sun Beach and fourteen recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the twenty- eight houses. Appreciation rates in percent Sun Beach 12.9, 8.4, 7.0, 11.9, 6.2,9.9, 13.9, 11.9, 11.3, 10.9, 13.4, 7.5, 11.0, 11.1 North Arden 13.4,9.8, 4.9, 8.6, 11.8,9.3,8.1, 7.8, 11.7, 12.2, 9.6, 7.1, 7.3, 8.6 Send data to calculator Send data to Excel Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.05 level of significance, that the mean appreciation rate of houses in Sun Beach, u, is higher than u, the mean…
According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found twelve recently sold homes in Sun Beach and twelve recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the twenty- four houses. Appreciation rates in percent Sun Beach 12.5, 12.2, 10.4, 12.9, 6.5, 15.0, 10.1, 10.6, 12.1, 10.8, 10.4, 9.1 North Arden 9.2, 10.7, 9.7, 7.8, 9.7, 12.1, 9.4, 6.1, 7.8, 9.3, 4.6, 11.0 Send data to calculator v Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.05 level of significance, that houses in Sun Beach have higher appreciation over the past three years than houses in North Arden? Perform a one-tailed test.…
According to a high-profile realtor, houses in the sleepy town of Sun Beach have shown higher appreciation over the past three years than have houses in the bustling town of North Arden. To test the realtor's claim, an economist has found eight recently sold homes in Sun Beach and eight recently sold homes in North Arden that were owned for exactly three years. The following table gives the appreciation (expressed as a percentage increase) for each of the sixteen houses. Appreciation rates in percent Sun Beach 10.2, 9.7, 12, 10.4, 7.9, 10.9, 9.6, 13.3 North Arden 7.5, 12.8, 5.9, 8.5, 8.1, 9.3, 6.3, 13.4 Assume that the two populations of appreciation rates are normally distributed and that the population variances are equal. Can we conclude, at the 0.05 level of significance, that houses in Sun Beach have higher appreciation over the past three years than houses in North Arden? Perform a one-tailed test. The null hypothesis: H0:…
The following information on maintenance and repair costs and revenues for the last two years is available from the accounting records at Arnie’s Arcade & Video Palace. Arnie has asked you to help him understand the relation between business volume and maintenance and repair cost. Month Maintenance and Repair Cost ($000) Revenues ($000) July $2.31 $59.00 August 3.28 53.00 September 2.80 49.00 October 2.21 65.00 November 2.30 77.00 December 1.14 105.00 January 3.12 45.00 February 3.16 51.00 March 3.02 61.00 April 2.98 63.00 May 2.04 67.00 June 1.78 79.00 July 2.60 73.00 August 2.02 67.00 September 2.57 75.00 October 2.38 77.00 November 1.43 87.00 December 0.76 117.00 January 2.58 61.00 February 2.28 63.00 March 1.69 83.00 April 1.95 87.00 May 1.95 73.00 June 1.33 69.00 Required: Using Excel, estimate a linear regression with maintenance and repair cost as the dependent variable and revenue as the independent variable.…
Here are annual revenue data in billions of dollars for the 10-year period 2008-2017 for two well-known retailers: Amazon: 19.1; 24.5; 32.4; 48.1; 61.1; 74.5; 89.0; 107.9; 136.0; 177.9. Walmart: 402.2; 406.1; 420.0; 445.0; 467.2; 474.5; 483.5; 480.0; 482.2; 496.8. For each company, use linear extrapolation in Excel to forecast revenue in the year 2021. (Hint: Use either the Trendline option or the Regression tool.) Using the regression tool in Excel (with a constant term), in 2021, Amazon's stock price is forecasted to be $ and Walmart's is forecasted to be $ (Enter your responses rounded to two decimal places.)
A famous Chinese restaurant would like to find out the change in demand on its dim-sum. After checking its purchase records in 2020 and 2021, the restaurant collected the data as follows: 2020 2021 Items Price ($) Quantity Price ($) Quantity Shrimp Dumpling 10 60 12 69 Spring Roll 7 51 62 Chicken Feet 8 73 9 77 (a) Using 2020 as the base year, calculate the Laspeyres Price Index of 2021. (b) Using 2020 as the base year, calculate the Paasche Price Index of 2021. (c) Using the result in part (a) and (b), calculate the Fisher Price Index of 2021.
3. The number of pounds of steam used per month by a chemical plant is thought to be related to the average ambient temperature (in °F) for that month. The past year's usage and temperatures are in the following table: Month Temp. Usage/1000 Jan. Feb. Mar. 21 Dec. 24 32 Apr. May June July Aug. 74 Sept. 62 Oct. Nov. 47 50 59 68 50 41 30 185.79 214.47 288.03 424.84 454.58 539.03 621.55 675.06 562.03 452.93 369.95 273.98 Assuming that a simple linear regression model is appropriate, fit the regression model relating steam usage (y) to the average temperature (x). (a) Find a 99% confidence interval for B₁. (b) Find a 99% confidence interval for B. (c) Find a 95% confidence interval on mean steam usage when the average temperature is 51°F. (d) Find a 95% prediction interval on steam usage when the temperature is 51°F.
The creator of a new online multiplayer survival game has been tracking the monthly downloads of the game. The following table shows the monthly downloads (in thousands) for each month of the current and previous year. Click on the datafile logo to reference the data. Month Downloads Month Downloads (previous year) (thousands) (current year) (thousands) February 33.0 January 37.0 March 34.0 February 35.0 April 34.0 March 37.0 May 32.0 April 38.0 June 32.0 May 35.0 July 35.0 June 36.0 August 35.0 July 35.0 September 37.0 August 35.0 October 37.0 September 34.0 November 36.0 October 31.0 December 34.0 Compute the mean, median, and mode for number of downloads in the previous year. Mean (to 3 decimals) thousand Median (to 2 decimal) thousand Mode (to 2 decimal) thousand…
The table below shows the share of income going to each quintile of the income distribution for Neverland in 1980 and 1990. Complete the table below finding the the cumulative share of income for 1980 and 1990 and answer the following: Share of income in Cumulative share of Share of income in Cumulative share of Quintiles 1980 income in 1980 1990 income in 1990 1st 7% 6.6.% 2nd 11.5% 11.5% 3rd 17% 16.3% 4th 24.8% 22.7% 5th 39.7% 42.9% a) Sketch the Perfect Equality line and the Lorenz curve for 1980 and for 1990. Don't forget to label your graph and your curves! b) According to the Lorenz curves that you draw in (a), which year had worse income inequality, 1980 or 1990? JUSTIFY your answer! NOTE: This is a file upload question. Work your answer in a piece of paper, take a picture and upload your file.

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