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Quantative Analysis of Data

Statistics

1. A bank located in a commercial district of a city has developed an improved process for serving customers during the noon to 1:00PM peak lunch period. The waiting time (as defined as the time the customer enter the line until he or she is served) of all customers during this hour is recorded over a period of 1 week. A random

Statistics for Producing Power Drinks

Assume NJD Bottling is a company producing power drinks. You visited the company and did a sampling of 15 bottles to figure out the average volume of the bottle. You recorded the following data: 17, 16, 17.5, 16.7, 17.3, 15, 17.2, 17, 17.2, 16.8, 17.3, 16.9, 17.4, 17.7, 17.1 a- Find the mean, median mode of the da

Statistic proba

Can I have help with this one please. thanks YOU HAVE 50 MINUTES FOR THIS EXAM. YOU MAY USE A CALCULATOR AND THE ABBREVIATED TABLE OF z-SCORES AND PERCENTILES GIVEN ON THE LAST PAGE. ENTER YOUR CHOICES ON THE COMPUTER ANSWER FORM AND IN THE BOXES BELOW THE QUESTIONS. JUSTIFY YOUR RESPONSE IN THE SPACE PROVIDED BELOW EACH QUES

John and Sons Company: Confidence Limits for thickness of paper

You are a quality analyst with John and Sons Company. Your company manufactures fax machines, copiers, and printers that use plain paper. The CEO of the company wants the machines to handle 99.5 percent of all the paper that is used in them without the paper getting jammed. The CEO asks you to determine the thickness of paper th

Differnce & Mean Difference of Scores

Calculate the difference scores for the following data from a repeated-measures study. Subject--Treatment#1--Treatment#2-- Difference Scores A 34 44 _________? B 41 39 _________ ? C

Application of Descriptive Statistics and Inferential Statistics

Provide an example from your work or home life; illustrate the difference between the application of descriptive statistics and inferential statistics. What type of information would you be looking to obtain with inferential statistics and which tools might you use to achieve that?

Statistics: Reaction time for groups of dogs

An animal trainer obtained the following sample data (Table A) in a study of reaction times of dogs (in seconds) to a specific stimulus. He then selected another group of dogs that were much older than the first group and measure their reaction times to the same stimulus. The sample data is shown in Table B. Table A

Statistics: Real Estate data from Denver

See attached file. Chapter 3 - Exercise 87 87. Refer to the Real Estate data, which reports information on homes sold in the Denver, Colorado, area last year. a. Select the variable selling price. a. Find the mean, median, and the standard deviation. b.Write a brief summary of the distribution of se

Problem, hypothesis, ethics in gathering data.

Select a business problem that is based upon an experience from your place of work or home environment. Briefly describe the business problem and the research methodology that you would employ to gather data and test your hypothesis (which should also be stated). Describe the ethical considerations that you would need to make re

Measures of Central Tendency, Baseball Team Salaries Vs Wins

Attached is the data that is supposed to be used to compile this assignment. -Calculate the measures of central tendency, dispersion, and skew for your data. -Display your descriptive statistical data using graphic and tabular techniques. a) frequency distribution; b) histogram -Based on your skew value and histogram, discu

Identify which measure of Central Tendency applies and Why?

Identify which measure of central tendency (mean, mode, median) that is appropriate for each of the following situations and why that is the best choice: a. Someone declares, "The average American is a white female" b. Anytown is considering imposing an income tax on citizens. The city government wants to know the average

Consumer Advocacy Group for Care Rental Practices

The Consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding the mean monthly mileage ... Loretta, who turns 91 this year has heard that the mean systolic blood pressure among elderly is ... The Manufacturer of a new Antidep

Statistics Problems

1. A university wants to estimate the average amount of money that students spend on books in a semester. It takes a random sample of 45 students and finds that the average amount of money spent was $282 with a standard deviation of $21. Find a 95% confidence interval estimate for the true mean amount of money spent on books in

Mean, Standard Deviation & Range

Mean 10.00 Standard Error 0.99 Median 10 Mode 7 Standard Deviation Sample Variance 8.75 Kurtosis -1.14 Skewness 0.45 Range Minimum 7 Maximum 15 Sum 90 Count 9 12.What is the μ? ___(PROVIDE THE VALUE)___________ 13.What is the μ? ___(PROVIDE THE VALUE)___________ 14. What is the range? ___(PROVIDE THE VALUE)

Mean, Median, Mode, Measure of Central Tendency

Grace took a random sample of the number of steps per minute from the electronic readout of her aerobic climbing machine during a 1-hour workout. (a) Calculate the mean, median, and mode. (b) Which is the best measure of central tendency? The worst? Why? 90 110 97 144 54 60 156 86 82 64 100 47

Statistics Survey responses: Compute mean, median, mode; formulate hypotheses

See attached file. Using survey responses from the data set, complete the following requirements in the form of a report: Perform a two-tailed hypothesis test on both the intrinsic and the extrinsic variable's data, using a .05 significance level. Begin by creating a null and an alternate statement. Perform a two-tai

Stem and Leaf Diagram and Standard Deviation

Answer each of the following questions. Show all work. 1.                   Complete column 3 of the following table, which shows the amount of time job applicants took to complete an aptitude test.. The column 3 solution is: Homework Time Number of Students Relative Freque

Statistic information

Can I have a quick information of this ( file attached) 1. A frequency distribution can be shown as ? a statistic ? a histogram ? a scatter plot ? a stem and leaf plot 2. Simple statistics are ? for simpletons ? presented in stem and leaf plots ? things like correlations ? things like standard deviations

Finding EOQ with uniform rate of damend

A large bakery buys flour in 25-pound bags. The bakery uses an average of 4,860 bags a year. Preparing an order and receiving a shipment of flour involves a cost of $10 per order. Annual carrying costs are $75 per bag. a) Determine the economic order quantity. b) What is the average number of bags on han

Normal Probability, Confidence interval & Hypothesis Testing

I. Matching a. Nominal _____1. Number of pages in a book b. Ordinal _____2. Name of a book c. Discrete _____3. Weight of a book d. Continuous _____4. Rank on bestsellers list II. Which of the following is not like the others in the group and say why: mean, standard deviation, median, mode, and midrange

Descriptive Statistics

1. For each of the following, note whether the distribution is symmetrical, negatively skewed, or positively skewed. a. Mean = 14, mode = 25, median = 19 b. Mean = 50, mode = 50, median = 50 c. Mean = 225.8, mode = 184, median = 199 2. A math test was given with the following results: 80, 69, 92, 75, 88, 37, 98, 92,

Quantitative Methods

1. Solve the following linear programming model by using the computer: Maximize Z = 5x1 + 8x2 Subject to 3x1 + 5x2 ≤ 50 2x1 + 4x2 ≤ 40 x1 ≤ 8 x2 ≤ 10 x1, x2 ≥ 0 2. Solve the following linear programming model by using the computer: Minimize Z = 8x1 + 6x2 Subject to

Histograms and Central Tendency

Compute descriptive statistics for the number of brothers and sisters (variable sibs), years of education (variable educ), and hours worked last week (variable hrs1). Obtain histograms for the variables as well. For each variable, compare the values of the different measures of central tendency (Mean, Median, Mode). Indi