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Quantative Analysis of Data

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

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

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

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

Accounting Business: Minnetonka Case Study

The Minnetonka Corporation, which produces and sells to wholesalers a highly successful line of water skis, has decided to diversify to stabilize sales throughout the year. The company is considering the production of cross-country skis. After considerable research, a cross-country ski line has been developed. Because of the co

Descriptive Statistics

Calculate the Mean, Median, First Quartile, Second Quartile, Variance, Standard Deviation, Range, Inter Quartile Range and Z-Score from the given data.

Simple Statistics Problems (Entry Level)

Attached are my statistics 101 problems that are to be completed and DONE (see attachment). By completing these problems you will be providing me with a valuable study guide to use so I will be able to solve problems such as these in the future. PLEASE make sure to DO ALL OF THE PROBLEMS. Do not make the EXPLANATIONS complic

Mean, Median and Mode

The responses of a sample of 1020 people who were asked if the air quality in their community is better or worse than it was 10 years aga are shown below. Find the mean, median and mode of the date. Better: 345 Worse: 430 Same: 245 a) Find the mean. Select correct choice below. Fill in answer to comple

Mean of Total Fat in Fast Food Chain Sandwiches

3.11- The following data contains the total fat , in grams per serving, for a sample of 20 chicken sandwiches from fast food chains. Sandwich Calories Fat Sat Fat Carbs Sodium Wendy's Ultimate Chicken Grill 360 7 2 44 1100 Baja Fresh Original Baja Taco with Charbroiled Chicken 370 8 1 53 680 Burger King Smoky BBQ Fire Gr

Stats

Please show all work. 1. There are 10 rolls of film in a box and 3 are defective. Two rolls are to be selected, one after the other (without replacement). What is the probability that neither roll will be defective? 2. The Ace Battery Company manufactures automobile batteries. The company has determined that the lives

Statistical Quality Control- Mean and Range Chart

1. Statistical Quality Control- Mean and Range Chart A new machine has just been installed to cut and rough-shape large slugs. The slugs are then transferred to a precision grinder. One of the critical measurements is the outside diameter. The quality control inspector randomly selected five slugs each hour, measured the out

Generating Simple Random Samples

A company's QC dept. has recorded the proportion of defective items for each of 500 monthly shipments of one of the computer components that the company produces (data in attached file).The QC dept. manager does not have time to review all of this data. Instead she would like to examine the proportions of defective items for a

Decision anaylsis using maximax,maximin, Hurwicz and equal likelihood

1. The owner of the Burger Doodle Restaurant is considering two ways to expand operations: open a drive up window or serve breakfast. The increase in profits resulting from these proposed expansions depends on whether a competitor opens a franchise down the street. The possible profits from each expansion in operations, given bo

Scale of Measurement - NOIR

For each of the following, identify the scale of measurement (NOIR) and the best measure of central tendency for the data. A survey reports that chocolate is the most popular ice cream flavor, followed by vanilla, strawberry, and chocolate chip. What scale of measurement is being used? Should the researcher report this inform

Variance and Standard Deviation of Weights

Collect data consisting of at least 20 values. (You may also create a data set with reasonable values for your variable). The values are given represent the weights of the 20 kids in the first grade class room: 36, 36, 37, 37, 38, 38, 41, 41, 41, 42, 42, 42, 42, 43, 44, 44, 44, 45, 45, 45, a.Define the variable - the weight

Quantitative Methods

Molly Dymond and Kathleen Taylor are considering the possibility of teaching swimming to kids during the summer. A local swim club opens its pool at noon each day, so it is available to rent during the morning. The cost of renting the pool during the 10-week period for which Molly and Kathleen would need it is $ 1,700. The po

Quantitative Methods

Kim Davis has decided to purchase a cellular phone, but she is unsure about which rate plan to select. The "regular" plan charges a fixed fee of $55 per month for 1,000 minutes of airtime plus $0.33 per minute for any time over 1,000 minutes. The "executive" plan charges a fixed fee of $100 per month for 1, 200 minutes of airt

Math questions

Assignment : Baseball 2005... Northewest Airlines.. Grocery Stores... Health Costs ... Major League ... Income Spent on Housing... I edited the remaining questions (Please see the attached file)