3-21 The following is a set of data for a population with N=10; 7 5 11 8 3 6 2 1 9 8 a. compute the population mean b. compute the population standard deviation 3-37 The following is a set of data from a sample of n=11 items X 7 5 8 3 6 10 12 4 9 15 18 Y 21 15 24 9 18 30 36 12 27 45 54 a. Compute t
Please see the attached document to answer questions I am having a hard time understanding. From attachment: 1. What are major quantitative design types? Name at least three types and provide a published example of a study for each type. 2. What different types of variables are used in quantitative studies? Describe ea
A list of 52 employees is below. 1) please compute the mean, median, and standard deviation of the list of the 52 employees. 2) Use excel to choose a simple random sample of size 15 from this frame. 3) please compute the mean, medium, and standard deviation of the annual salaris for the 15 employees included in the si
The Springdale School board has made the decision to close one its junior high schools (seventh and eight grades) at the end of the school year and reassign all of next year's students to one of the three remaining junior high schools. The school district for the closed school has been divided into five areas as shown in the ta
5. In the transportation problem on the next page, products are produced at plants in Locations A and B and shipped to warehouses in locations X, Y and Z. 5a. According to the model formulation, what is the capacity of Plant B? _________ 5b. According to the model formulation, what is the demand at warehouse Z? ________
1) To compare the proportion of defective light bulbs from Brand A... 2) The time taken by an athlete to run an event has a distribution with mean... (Please see attached. Please do them).
As the production manager for an electronic circuit company you have encountered the following situation. Part 1 A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. What are the upper and lower control limits for a samp
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Hello. I need help towards this one problem only. It tends to be confusing to me. Please can anybody help me? Determine whether a probability distribution is given. In those cases where a probability distribution is not described, identify the requirements that are not satisfied. In those cases where a probability distributio
The monthly average low temperatures* during different months of year at Denver, CO are given below: January February March April May June 5 8 18 29 40 50 July August September October November December 55 53 44 32 24 12 Source: www.weather.com Word-process your solution and answers below. a) Find the mean year
Below is some data from 2005 for on-the-job deaths in some dangerous jobs. Which job seems the most dangerous? Which seems the least dangerous? Explain. total deaths total employed Driver 993 3,412,370 Farmers 341
1.22 The U.S. Census Bureau site, www.census.gov,contains survey information on people, business, geography, and other topics. Go to the site and click on Housing in the "People and Households" sections. Then click on American Housing Survey. a. Briefly describe the American Housing Survey. b. Give an example of a catagor
The central limit theorem tells us that the distribution of averages of random samples tends to be normal even if the shape of the population of observations from which it is not normal. True or false?
In your own words explain the difference between "descriptive statistics" and "inferential statistics." Explain with example situations.
While exploring data that was collected for an investigation of resources needed for software testing and improvement, you have found an outlier. The study is focused on two variables: the number of bugs found in the code and the time (in person-hours) required to fix them. The outlier corresponds to a very large project with
Consumers didn't need to be told that Jazz Diet Pepsi was about to hit store shelves; they could smell it. The soft-drink company had placed an ad laced with scents of black cherry and French vanilla in the October 2006 edition of People magazine. Four months later, British travel agency Thomson Holidays sprayed its store win
Complete the table above using Excel functions. You may also use pivot tables if you know how to (see pgs 77-80) (Those of you familiar with SPSS or Minitabs may use those programs instead) (20 pts) Answer the following using the same programs: 1) Which customer type (promotional or regular) spent the most money on average? EXPLAIN (2 pts) 2) What was the standard deviation for promotional and for regular customers? Which group had less variability in their purchases? EXPLAIN (3 pts) 3) Create a bar chart (see pgs 73-75 for histograms) for net sales for all customers. Are net sales positively or negatively skewed--EXPLAIN. Keep bar chart as part of your answer (5 pts)
PELICAN STORES Pelican Stores, a division of National Clothing, is a chain of women's apparel stores operating throughout the country. The chain recently ran a promotion in which discount coupons were sent to customers of other National Clothing stores. Data collected for a sample of 100 in-store credit card transactions at Pe
A candidate for mayor in a small town has allocated $40,000 for last minute advertising. He will be using two types of ads radio ads which cost $200 per ad and reach 3,000 people and television ads which cost $500 per ad and reach 7,000 people. In planning the campaign the manager would like to reach as many people as possible b
1. Suppose that a broad cross section of high school students took a very difficult scholarship exam and almost all scored very low but a very small number scored very high. When plotted as a curve, the distribution will show what type of skew? 2. Which type of distribution is often found in the nature? 3. What is the form
Sect. 5-2, p. 209 Identifying Probability Distributions. In Exercise 7-12, determine whether a probability distribution is given. In those cases where a probability distribution is not described, identify the requirements that are not satisfied. In those cases where a probability distribution is described, find its mean and
Assignment #8: Cost-benefit Analysis and Related Topics 1. Suppose you are the primary decision-maker (with input from the board, of course) in the healthcare corporation known as Medical Care at Your Doorstep (MCYD). The clinics operated by MCYD are located in areas that underserved by hospitals and the mission of
Question 1: Gregor Mendel crossed two breeds of peas and examined the crop. He found 892 wrinkled green peas, 378 smooth green peas, 618 wrinkled yellow peas, and 241 smooth yellow peas. a. If he picked a smooth pea at random from his crop, what is the probability that it was yellow? b. If he picked a pea at random fro
Hi can you please help me with this study case please. I am not very sure about my answers. Thanks
Refer to the Wage Data that is in the attachment, which reports information on annual wages for a sample of 100 workers. Also included are variables relating to industry, years of education, and gender for each worker. (a) Which of the 12 variables are qualitative and which are quantitative? (b) Determine the level of measu
Car Fuel Consumption: The following table lists highway fuel consumption amounts (in mi/gal) from data Set 22 in Appendix C. Assume that fuel consumption amounts are not affected by an interaction between the type of transmission (manual or automatic) and the number of cylinders. Are fuel consumption amounts affected by the
Using a present value table, your calculator, or a computer program present value function, answer the following questions. Assistance is needed with the formula to calculate the problems: Required: a. What is the present value of nine annual cash payments of $4,000, to be paid at the end of each year using an interest rate
A 2005 article written by Will Lester of the Associated Press reported on a poll in which 80% of those surveyed say that American who currently own a SUV (sport utility vehicle) shoudl switch to a more fuel-efficient vehicle to ease America's dependency on foreign oil. As a follow up to this report a consumer group conducted a
Determine the types of measurement scales for each variable (Nominal, Ordinal, Interval, Ratio): 1) Name 2) Gender 3) Absences 4) Physical Education (PE) 5) Math 6) Writing 7) Reading
The Midwest Gas Transmission Company must build a pump station on one of its major pipelines. The activities involved in completing this project are given in the following table. Activity Description Precedence A Carry out project administration none B Hire pipeline construction personnel A C Purchase pump station equipment
Please help with the following problems. Provide a detailed explanation for each question. a. The firm in question 4 gives no raises to the clerks and junior accountants, while the owner's take increases to $455,000. How does this change affect the mean? How does it affect the median? b. A discussion of extreme weather re