K George Kyparisis owns a company that manufactures sailboats. Actual demand for George's sailboats during each 81 the past four seasons was as follows: Year Season Winter Spring Summer Fall 1 1,440 1,500 1,020 680 k 2 1,280 1,440 2,120 810 3 1,040 1,600 2,020 650 4 920 1,540 1,900 560 George has forecasted that annual demand for his sailboats in year 5 will equal 5,600 sailboats. Based on the given data and using the seasonal model, the demand level for George's sailboats in the spring of year 5 will be sailboats (enter your final answer as a whole number and round all intermediate calculations to two decimal places).

In May 2008, CNN reported that Sports Utility Vehicles (SUVs) are plunging toward the "endangered list". Due to soaring oil prices and environmental concerns, consumers are replacing gas-guzzling vehicles with fuel-efficientsmaller cars. As a result, there has been a big drop in the demand for new as well as used SUVs. A sales manager of a used car dealership for SUVs believes that it takes more than 90 days, on average, to sell an sUV. In order to test his claim, he samples 40 recently sold SUVs and find that it took an average of 95 days to sell an SUV. He believes that the population standard deviation is fairly stable at 20 days. Determine if the sales manager's claim is justifiable at 0.05

Suppose that 2% of the employed lose their job each month. Further suppose that 25% of the unemployed find a job each month.   a. What is the average duration of employment in this labor market?   b. Do you think this is a reasonable figure given estimates of the natural rate? Why or why not?   c. If you wanted to reduce the steady-state level of unemployment, what type of policies might you pursue and why?

A iPhone store starts by selling 100 iPhone pre-ordered in week zero and expects to sell an average of 15%more each week after that. How many iPhone is the store expected to sell in week 4?

Find out the next month after april income by using the forecasting method  of the moving average method

At the beginning of 2007, the population of a certain state was 55.4% rural and 44.6% urban. On the basis of past trends, it is expected that 10% of the population currently residing in the rural areas will move into the urban areas, while 17% of the population currently residing in the urban areas will move into the rural areas in the next decade. What was the population distribution in that state at the beginning of 2017?

After examining these data for all the jurisdictions, someone notes that certain areas have an unusually high “percent of 18-64 yr-olds with no high school diploma.” Based on this finding, this individual concludes that the high percentages are due to the rising population of immigrants in those areas. Further, the individual argues that any estimates of the associated “percent of low-income working families” in those areas should be recalculated after removing this sub-population from the data set, as they are causing the area to “look bad”.  In addition to thinking critically, use the key rules about linear regression and extrapolation to write a statistically appropriate and socially responsible response to the individual’s conclusion and argument.

Workers at a particular mining site receive an average of 35 days paid vacation, which is lower than the national average. The manager of this plant is under pressure from a local union to increase the amount of paid time off. However, he does not want to give more days off to the workers because that would be costly. Instead he decides he should fire 10 employees in such a way as to raise the average number of days off that are reported by his employees. In order to achieve this goal, should he fire employees who have the most number of days off, least number of days off, or those who have about the average number of days off?   a. He should fire employees who have the most number of days off.     b. No matter who he fires, it will not increase the amount of paid time off.     c. He should fire employees who have the average number of days off.     d. He should fire employees who have the least number of days off.

The National Highway Association is studying the relationship between thenumberof bidders on a highway project and the winning (lowest) bid for the project. Ofparticular interest is whether the number of bidders increases or decreases the amountof the winning bid.

According to a newspaper study of more than 1 million medical dispatches from 2007 to 2012, the 911 response time for medical aid varies dramatically across a city. Under national standards adopted by the city's fire department, rescuers are supposed to arrive within six minutes to almost all medical emergencies. But the newspaper analysis found that in affluent hillside communities of the city, firefighters failed to hit that mark nearly 85% of the time. The following data show the response times, in minutes, for 10 emergency calls in the Griffith Park neighborhood. 11.8 10.3 10.7 10.6 11.5 8.3 10.5 10.9 10.7 11.2 Based on this sample of ten response times, compute the descriptive statistics (in minutes) in parts (a) and (b) and then answer the questions in parts (c) and (d). (a) mean, median, and mode (in min) mean minmedian minmode min (b) range and standard deviation (in min) (Round your answers to four decimal places.) range minstandard deviation min (c) Compute…