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Quantative Analysis of Data

Statistics: 23 problem exam

1. Distinguish between descriptive statistics and inferential statistics. 2. Distinguish between and independent and a dependent variable - give example. 3. The annual incomes of the five vice presidents of Erlen industries are 75000 78000 72000 83000 90000 a. What is the range? b. What is the arithmetic mea

Trend Equations

The data in DJIA.XLS (CD-> browse->Excel_Data_Files) represent the closing value of the Dow Jones Industrial Average (DJIA) over the 24-year period 1979 through 2002. See Problem 15.17. Using EXCEL or PHStat2, answer the following: 1. Find a linear trend equation to these data. a) Y^ = -934.2717 + 452.5928X b) Y^ = 934.2717

Statistical Techniques: Problem 88, 56, 64, 18, 22

Statistical Techniques in Business and Economics Problem 88 (Ch3) Refer to the Baseball 2005 data, which reports information on the 30 major league teams for the 2005 baseball season. Select the variable team salary and find the mean, median, and the standard deviation. Select the variable that refers to the age the stad

Statistical Calculations for Initiation into the Cardinal Club

Nine college juniors are aspiring to become members of the hallowed Cardinal Club at LSU. Successful initiation involves accurately performing a series of rituals involving ordered mental and physical tasks, which include sips of beer at certain points, after initially having consumed six beers. Every time a participant botche

Define the Four Levels of Data

Please help with the following problem involving analysis of data. Provide at least 400 words in this posting. No references are requested. What are the four levels of data? Indicate them along with a definition of each in order from lowest to highest.

Cardinal Club: Exercise on measures of central tendency and variations.

A group of college students made the decision to attempt to join the infamous Cardinal Club. The initiation into the Cardinal Club involves consuming six beers and then performing a series of hand and spoken rituals which the 'candidate' is shown and allowed to practice a couple of times before the beginning of the initiation.

Statistics: Mean, Median, and Range of Two Data Sets

For the following exercise, complete the following: Find the mean, median, and range for each of the two data sets. Find the standard deviation using the rule of thumb for each of the data sets. Compare the two sets and describe what you discover. The following data sets shows the ages of the first seven president

Bio-statistics/ Select the appropriate statistical test

Tables is already done in attachment ... Select the appropriate statistical test that allows you to conduct an analysis of the factors affecting hospital costs. You will have to select the correct statistical test and conduct that test in Excel. 1. analyze your data and produce a 250-word summary describing the major find

General Questions about Descriptive Statistics

1. Compare and contrast the advantages and/or disadvantages of using a bar chart, a pie chart, or a Pareto diagram. 2. Discuss the differences among the mean, median, and mode. What are the advantages and disadvantages of each? 3. Explain how the empirical rule helps explain the ways in which the values in a set of numeric

Optimal transportation schedule for projectors

After some special presentations, the employees of the AV Center have to move overhead projectors back to classrooms. The table below indicates the buildings where the projectors are now (the sources), where they need to go (the destinations), and a measure of the distance between sites. Destination Source Business Ed

Statistics problems: 12, 59, 106, 297, 292, 295, 299

12. A specialty bookstore concentrates mainly on used books. Paperbacks are $1.00 each, and hardcover books are $3.50. Of the 50 books sold last Tuesday morning, 40 were paperback and the rest were hardcover. What was the weighted mean price of a book? 59. A major cost factor in the purchase of a home is the monthly loan paym

Statistics: Ford testing fuel efficiency; range of values. Is data skewed?

See the attached file. The following data is a result of selecting a random sample of a new Ford Testing these cars for fuel efficiency results are in mile per gallon: 39.9 28.5 35.3 32.6 33.9 40.5 28.9 30.0 33.0 26.2 35.4 26.3 33.0 25.5 33.2 28.1 37.2 28.8 Attached is Excel descriptive statistics refer

Determine Mean, Deviation and Create Histogram for Data Analysis

INSTRUCTIONS 1. Obtain the mean and standard deviation of the provided data. See below. 2. Create a histogram for data frequencies using the Microsoft® Excel® program. The bin range can be left blank. 3. Use the histogram to determine how many points are out of control according to the upper control limit and lower contr

Mean Difference for the Main Effect of Treatments

18. For the data in the following matrix: No treatment Treatment Male M=5 M=3 Overall M =4 Female M=9 M=13 Overall M= 11 Overall M = 7 Overall M=8 a. Describe the mean difference that is the main effect for the treatment. b. Describe the mean difference that is the main effect for gender. c. Is there an

Compute Mean, Median, Modal Selling Price, Range, Deviation

66.) 3.44 3.42 3.35 3.39 3.49 3.49 3.41 3.46 3.41 3.49 3.45 3.48 3.39 3.46 3.44 a. What is the arithmetic mean selling price? b. What is the median selling price? c. What is the modal selling price? 69.) 32 21 60 47 54 17 72 55 33 41 a. Compute the ran

9 Statistics Problems

11. For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation: 2, 2, 0, 5, 1, 4, 1, 3, 0, 0, 1, 4, 4, 0, 1, 4, 3, 4, 2, 1, 0 12. For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard devia

Stats assignment

This data represents the cholesterol levels in mg per 100 mL for 52 participants on a regular diet. 1. On the page labeled Histogram, make a frequency distribution and relative frequency distribution using 6 classes. Use this to make a relative frequency histogram. Be sure to properly title and label your graph. 2. On the

3 Statistics Problems: Mean, Standard Deviation, Percentage

Problem-1: The number of unemployed workers in the United States in recent years (in millions) is given below. [Please refer to the attachment fo the given data] a. Find the mean number of unemployed (in millions) in this period. Which year has unemployment closest to the mean? b. Find the standard deviation for the

Times of Populations Ranges

Please see attached file. Exercises 80, 82, and 87 (Ch. 3) 80). Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinners. During the summer beach season, they do not take reservations or accept "call ahead" seating. Management of the restaur

Probability of Random Selection

1. Assume that a class length between 50.0 min and 52.0 min is randomly selected, and find the probability that the given time is seletced. Between 50.5 min and 51.8 min 2. Assume that voltages in a circuit vary between 6 volts and 12 volts, and voltages are spread evenly over the range of possibilities, so that there is a

AAA Gas Price Statistics: Arithmetic Mean, median, and modal

The American Automobile Association checks the prices of gasoline before many holiday weekends. ... during the May 2003 Memorial Day weekend in the Detroit, Michigan, area. .... before many holiday weekends. Listed below are the self-service prices for a sample of 15 retail outlets during Labor Day weekend of 2007 in the detroit

Statistical Process Control Transactions

See the attached file. Token thickness and Bank transaction problem to excel worksheet. A bank has determined that an average transaction time of sixty seconds with a variation of plus or minus five seconds for automated teller machines (ATM's) is expected. A survey shows the following transaction times.

Research Question analysis

Based on an analysis of the last six months sales your boss notices that sales of beef products are declining in your chains restaurants. As beef entree sales decline, so do profits. Fearing beef sales have declined due to several newspaper stories reporting E coli contamination discovered at area grocery stores, he suggests a s

Statistics: Deviation, variance, mean score, mean, median, mode

Consider the data 8, 6, 7, 7, 9, 4, 8. What is the variance? Given the following sentences in years for vehicular manslaughter group of 27: Sentences f 10 1 9 0 8 4 7 8 6 1 5 3 4 3 3 3 2 2 1 2 What is the mean score? Consider the data 8, 6, 7, 7, 9, 4, 8. What is the standard deviation? The scores on a cr