Chapter 11, Problem 11.30CRP

The table below shows the percent of the labor force that is unemployed and the size of the labor force for three counties in northwest Ohio. Jon Elsas is the Regional Director of Economic Development. He must present a report to several companies that are considering locating in northwest Ohio.   County Percent Unemployed Size of Workforce Wood 4.5 15,300 Ottawa 3.0 10,400 Lucas 10.2 150,600     What would be an appropriate unemployment rate to show for the entire region? (Round your answer to 2 decimal places.)

Dr. Loras Tyrell was curious to see if his students actually saved money by purchasing books from sources other than the college bookstore. He administered a survey to all his students asking how they obtained their book (Bookstore, Rented, ebook, or on the web – WebBooks) and how much they paid for the book. He obtained the information below.  If the values for web-books are normally distributed, we know that of the students who purchased their book on the web (WebBooks), about 68.3% of those students paid approximately $----- to ----?

This year, 75% of the graduating class of Harriet Tubman High School had taken at least 8 math courses. Of the remaining class members, 60% had taken 6 or 7 math courses. What percent of the graduating class had taken fewer than 6 math courses?A. 0% B. 10% C. 15% D. 30% E. 45%

A corporation is trying to decide which of three makes of automobile to order for its fleet—domestic, Japanese, or European. Five cars of each type were ordered, and, after 10,000 miles of driving, the operating cost per mile of each was assessed. The accompanying results in cents per mile were obtained. Domestic    Japanese    European    18.0              20.1          19.3    15.6              15.6          15.4    15.4              16.1          15.1    19.1              15.3          18.6    16.9              15.4          16.1 a. Prepare the analysis of variance table for these data. b. Test the null hypothesis that the population mean operating costs per mile are the same for these three types of car. c. Compute the minimum significant difference and indicate which subgroups have different means.

Twenty percent of anthropology majors were offered a starting salary greater than .

The percentage of employees who cease their employment during a year is referred to as employee turnover, and it is a serious issue for businesses. The following table shows the cost, in millions of dollars, to a certain company for a given employee turnover percentage in a year.

In a study of how the environment affects spending, researchers varied the presence of music and scents in a shopping mall. Interviews with shoppers who made unplanned purchases revealed the average purchase amounts shown to the right. Each group has 100 shoppers. Complete parts (a) through (c) below. (a) If each group includes 100 shoppers, which group spent the most money in total? A. The group that was exposed to only music spent the most money in total. B. The group that was exposed to only scent spent the most money in total. C. The group that was exposed to both scent and music spent the most money in total. D. The group that was exposed to neither scent nor music spent the most money in total. (b) If medians summarized each group's spending rather than means, would you be able to identify the group with the largest spending? 00 Condition None Scent Music Scent and music A. No, the total amount cannot be recovered from the median value. B. Yes, the total amount can be recovered…

The Entergy Corporation had 2,600,000 electricity customers. Of these, 76.1% were in the residential category (R); 13.9% were commercial (C); 2.5% were industrial (I); and 7.5% were government and municipal (G). What is the value of P(C or G)?

I need help figuring this out.