The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity). An economist selected a sample of 20 homeowners in New England and then calculated these total housing costs as a percent of monthly income, 5 years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than 5 years ago?   Homeowner Five Years Ago   Now   Homeowner   Five Years Ago   Now 1   17 %     10 %     11       35 %     32 % 2   20       39       12       16       32   3   29       37

Profitability remains a challenge for banks and thrifts with less than​ $2 billion of assets. The business problem facing a bank analyst relates to the factors that affect return on assets​ (ROA), an indicator of how profitable a company is relative to its total assets. Data collected from a sample of 194 community banks include the ROA​ (%), the efficiency ratio​ (%), as a measure of bank productivity​ (the lower the efficiency​ ratio, the​ better), and total​ risk-based capital​ (%), as a measure of capital adequacy. A multiple linear regression model resulted in an SSR of 5.25 and an SSE of 125.02.   Calculate the test statistic.   FSTAT=____________ ​(Round to two decimal places as​ needed.)

Example 5 The highlights of the Railway budget for 1983-84 are as follows. The actual gross traffic receipts for 1981-82 was Rs. 3,538.24 crores. The Budget Estimates for 1982-83 in regard to Gross traffic receipts was Rs. 4,171.8 crores and the revised Budget Estimate for 1982-83 for the above item is Rs. 4,375.79 crores respectively. Whereas the budget estimates for 1983-84 for Gross traffic receipts is Rs. 5,343.63 crores, the actual total working expenses and the net railway revenue for 1981-82 were Rs. 3,182.05 crores and Rs. 403.1 crores respectively. The Budget Estimates and Revised Budget Estimates for 1982-83 in respect of total working expenses are Rs. 3,700.90 crores and Rs. 3,892.28 crores respectively. Whereas the corresponding estimates for 1982-83 in respect of net-railway revenue are Rs. 510.91 crores and Rs. 533.4 crores respectively, the estimated budget on total working expenses and net railway revenue for 1983-84 exceed the actuals for 1981-82 by Rs. 1,338.72 crores…

The table to the right gives the average sales tax rate​ (state plus​ local) in six east coast states and six western states. Complete parts​ (a) through​ (e) below. East coast states West coast states   A 6.90​% U 8.25​%   B 6.50​% V 1.66​%   C 7.00​% W 0.00​%   D 0.00​% X 8.94​%   E 6.99​% Y 8.25​%   F 8.00​% Z 6.94​%         a. Find the​ mean, median, and range for each of the two data sets.   The mean for the east coast states is . ​(Type an integer or decimal rounded to three decimal places as​ needed.) b. Give the five-number summary and draw  boxplot for each of the data sets. Start by finding the lower quartile value. Complete the five number summary for the east coast states  Lowest Value Lower Quartile Median Upper Quartile Higher Value  Give the five summary for the west coast states c. Find the standard deviation for each of the data sets.      Use the…

The sales manager of a large automotive parts distributor wants to estimate the total annual sales for each of the company’s regions.  Three factors appear to be related to regional sales: the number of retail outlets in the region, the total personal income of the region, and the number of cars registered in the region. The following table shows the data for 10 regions that were gathered for last year sales.    The excel data file for this problem is:final exam question 6B spring 2021.xlsx     Region Annual sales  ($ million) Number of retail outlets Number of automobiles registered (million) Personal income ($ billion) 1 37.702 1,739 9.27 85.4 2 24.196 1,221 5.86 60.7 3 32.055 1,846 8.81 68.1 4 3.611 120 4.81 20.1 5 17.625 1,096 10.31 33.8 6 45.919 2,290 11.62 95.1 7 29.600 1,687 8.96 69.3 8 8.114 241 6.28 16.5 9 20.116 649 7.77 34.9 10 12.994 1,427 10.92…

The following data were taken from the annual reports of Big Bang Inc., a manufacturer of fireworks, and Orange Inc., a manufacturer of computers.   Big Bang, Inc. Orange, Inc. Cost of goods sold $830,000 $11,540,000 Inventory, end of year 190,000 320,000 Inventory, beginning of year 240,000 290,000 What is the inventory turnover for Big Bang and Orange. a. Big Bang, Inc.: 3.86Orange, Inc.: 37.84 b. Big Bang, Inc.: 3.86Orange, Inc.: 9.65 c. Big Bang, Inc.: 94.55Orange, Inc.: 37.84 d. Big Bang, Inc.: 94.55Orange, Inc.: 9.65

Profitability remains a challenge for banks and thrifts with less than $2 billion of assets. The business problem facing a bank analyst relates to the factors that affect return on assets (ROA), an indicator of how profitable a company is relative to its total assets. Data collected from a sample of 73 community banks include the ROA (%), the efficiency ratio (%), as a measure of bank productivity (the lower the efficiency ratio, the better), and total risk-based capital (%), as a measure of capital adequacy. Use the accompanying multiple linear regression results to complete parts (a) and (b) below. Variable Coefficient Standard Error 0.30408 0.00539 -0.24116 0.01953 0.04922 0.01517 Intercept Efficiency Ratio, X₁ Risk-Based Capital, X₂ t Statistic - 0.79 3.62 3.24 (Round to four decimal places as needed.) p-value 0.4304 0.0005 0.0018 C a. Construct a 95% confidence interval estimate of the population slope between ROA and efficiency ratio.

Profitability remains a challenge for banks and thrifts with less than $2 billion of assets. The business problem facing a bank analyst relates to the factors that affect return on assets (ROA), an indicator of how profitable a company is relative to its total assets. Data collected from a sample of 20 community banks include the ROA (%), the efficiency ratio (%), as a measure of bank productivity (the lower the efficiency ratio, the better), and total risk-based capital (%), as a measure of capital adequacy. Complete parts (a) through (g) below. Click the icon to view the data table. a. State the multiple regression equation. Let X₁, represent the efficiency ratio (%) and let X₂; represent the total risk-based capital (%). Ý TO DX DX = + + (Round the constant to two decimal places as needed. Round the coefficients to four decimal places as needed.) Distribution Costs ROA (%) 1.13 1.22 0.82 1.15 0.81 1.23 0.67 1.35 0.95 0.71 0.69 1.10 0.87 1.02 0.86 1.74 1.02 1.76 0.90 0.68 Efficiency…

The table to the right represents the annual percentage of smartphones sold in a certain region in 2011, 2012, and 2013 (projected). a. What conclusions can you reach about the market for smartphones in 2011, 2012, and 2013? b. What differences are there in the market for smartphones in 2011, 2012, and 2013? a. Select all that apply. A. Type 6 had the smallest or close to the smallest percentage of smartphones sold in all three years. B. Type 3 had the second largest percentage of smartphones sold in all three years. C. Type 1 had the largest percentage of smartphones sold in all three years. D. Type 5 had the smallest or close to the smallest percentage of smartphones sold in all three years. E. Type 2 had the second largest percentage of smartphones sold in all three years. Туре Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 2011 44% 21% 21% 10% 1% 3% 2012 69% 16% 4% 6% 3% 2% 2013 63% 17% 1% 3% 13% 3%

Profitability remains a challenge for banks and thrifts with less than​ $2 billion of assets. The business problem facing a bank analyst relates to the factors that affect return on assets​ (ROA), an indicator of how profitable a company is relative to its total assets. Data collected from a sample of 88 community banks include the ROA​ (%), the efficiency ratio​ (%), as a measure of bank productivity​ (the lower the efficiency​ ratio, the​ better), and total​ risk-based capital​ (%), as a measure of capital adequacy. Use the accompanying multiple linear regression results to complete parts​ (a) and​ (b) below. Variable Coefficient Standard Error t Statistic ​p-value   Intercept −0.21762   0.39401 −0.55      0.5822   Efficiency​ Ratio, X1 0.01443   0.00498 2.90      0.0048 ​ Risk-Based Capital, X2 0.04002   0.01034 3.87      0.0002   Find the test statistic for X1.   tSTAT=______ ​(Type an integer or a decimal. Do not​ round.)