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Quantative Analysis of Data

Quantitative analysis questions about research article.

Answer the following questions for the attached research article (Dormire, S.L. & Reame, N.K. 2003. Menopausal hot flash frequency changes in response to experimental manipulation of blood glucose. Nursing Research 52(5): 338-343.): 1. Problem What is the problem the study was conducted to resolve? Why is the problem an i

Probability Distributions - Scores

1. The scores for an IQ test are normally distributed with a mean of 100 and a standard deviation of 15. If a person is selected at random, what is the probability that his IQ score will fall below 105 and will it be between 90 and 110. 2. An advertising company plans to market a product for low income families. A study state

Construct the 90 percent confidence interval

A. Construct the 90 percent confidence interval for occupational prestige for respondents with only a high school diploma (N = 1,412). b. Construct the 90 percent confidence interval for occupational prestige for respondents with a bachelor's degree (N = 437). State in words the meaning of the result. c. Use these statistics

Statistical Calculations of Standard Deviation, Mean and Variance

16. The heights (in inches) of 10 adult males are listed below. Find the population standard deviation (o). 70 72 71 70 69 73 69 68 70 71 a. 70 b. 3 c. 2.38 d. 1.42 17. The heights (in inches) of 10 adult males are listed below. Find the population variance (o2). 70 72 71 70 69 73 69 68 70 71 a. 2.35 b. 2.75

Descriptive Statistics

Use the given data to find each of the listed values 56 69 64 68 79 56 73 53 62 (a) Mean (b) Median (c) Mode (d) Midrange (e) P 80 (f) Standard Deviation (g) Variance Which is better: A score of 73 on a test with a mean of 75 and a standard deviation of 5 OR a score of 80 on a test

Quantitative methods interest in linear programming practice problems

Consider the following integer linear programming problem. Max Z = 3x1 + 2x2 Subject to: 3x1 + 5x2 <= 30 4x1 + 2x2 <= 28 x1 <= 8 x1, x2 >= 0 and integer The solution to the linear programming relaxation is: x1 = 5.714, x2= 2.571. What is the optimal solution to the integer linear programming problem? State the v

Statistics Questions

1. Explain the general purpose for measuring central tendency? 2. Explain what is meant by each of the following statements: a. The mean is the balance point of the distribution. b. The median is the midpoint of the distribution. 3. Identify the circumstances in which the median rather than the mean is the preferred mea

Measure of central tendency

Provide a brief description of a real-world example in which one measure of central tendency provides useful information while another measure of central tendency provides meaningless (or even misleading) information.

Statistical Quality Control

Statistical Quality Control. See attached file for full problem description. (1) Twenty five items were selected at random a production process and their quality characteristic was measured resulting in the following data: i x i x 1 97.00 16 78.82 2 87.22 17 94.32 3 102.44 18 95.96 4 112.76 19 101.35 5 111.98 20

Answer to Statistics question: Quantitative Methods

Joe is going to invest $250,000 in the development of new products. The new products have the following expected costs, yields, and degrees of risk. Expected Expected Expected Product Cost Yield Risk A $100,000 0.20 8 B $50,000 0.10 4 C $50,000 0.15 10 D $150,000 0.10 0

Quantitative Methods

Three quarries produce lime which is then shipped to five warehouses Quarry Tons Lime 1 200 2 100 3 150 Transport Costs (per ton) Quarry 1 2 3 4 5 1 $5 $1 $6 $3 $1 2 $2 $3 $4 $5 $4 3 $4 $2 $3 $2 $3 Demand 80 90 100 70 60 (tons)

Quantitative Methods

Joe has started an iphone booth in the mall. His francise booth and other startup costs total $82,000. Joe expects to pay $240 per iphone unit and sell them for $390 each. Joe needs to reach a 10% profit margin. Use Goal Seek to determine what volume Joe needs to meet his goal.

Quantitative Methods

State University has planned six special catered events for the Saturday of its homecoming football game. The events include an alumni brunch, a parent's brunch, a booster club luncheon, a postgame party for season ticket holders, a lettermen's dinner, and a fund-raising dinner for major contributors. The university wants to us

Quantitative Methods:Assignment problem

Bayville has built a new elementary school, increasing the town's total to four schools- Addision, Beeks, Canfield, and Daley. Each has a capacity of 400 students. The school board wants to assign children to schools so that their travel time by bus is as short as possible. The school board has partitioned the town into five dis

Quantitative Methods

A manufacturing firm produces diesel engines in four cities- Phoenix, Seattle, St. Louis, and Detroit. The company is able to produce the following numbers of engines per month. Plant Production 1. Phoenix 5 2. Seattle

Quantitative Methods

Steel mills in three cities produce the following amounts of steel. Location Weekly Production A. Bethlehem 150 B. Birmingham 210 C. Gary 320 = 680 These

Probability and Statistics: 3 questions with multiple parts

1. For this question pretend you are drawing cards without replacement from the infamous "Iraq's Most Wanted" deck issued by the U.S. Military. If you are drawing from the full deck of 55 cards, what are the following probabilities: a. You draw a card that is not Saddam Hussein b. You draw two cards, which end up being Sadd

Various Statistics Problems: See attached file for full problem description.

I) PRLICAN 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 promotionin 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 P

Quantitative Methods

Lauren Moore has sold her business for $500,000 and wants to invest in condominium units ( which she intends to rent) and land ( which she will lease to a farmer). She estimates that she will receive an annual return of $8,000 for each condominium and $6,000 for each acre of land. A condominium unit costs $70,000, and land is $3

Questions on distributions: mode, skewness.

1. Based on the display, the mode (or modes) for this distribution of values is ??? 1 000 1 5688999 2 1112244 2 57 3 134 3 68 4 2 4 7 5 1 5 5 6 6 7 7 2. The following shows the 5 - number summary for the box-and-whisker plot. Box-and-whisker plot Five-number Summary Minimum

Mean and Standard Deviation for Medical Issues

Because they are so easy to correct, multiple choice questions are commonly used for class test, SAT test, MCAT test for medical schools and many other circumstances. The table listed describes the probability distribution for the number of correct responses when someone makes random guesses for 10 multiple choice questions on

Quantitative Methods

The Pyrotec Company produces three electrical products- clocks, radios, and toasters. These products have the following resource requirements. Resource Requirements Cost / Unit Labor Hours/ Unit Clock

Mean and Standard Deviation

Height of 50 oak trees were measured, but due to problems only partial results were obtained. it was found that 6 trees had a height of less than 9 metres, while 18 trees had a height of less than 15 metres. calculate mean and standard deviation of the heights of oak trees.

Quantitative Methods:LPP

Iggy Olweski, a professional football player, is retiring, and he is thinking about going into the insurance business. he plans to sell three types of policies - homeowner's insurance, auto insurance, and life insurance. The average amount of profit returned per year by each type of insurance policy is as follows. Policy

Simple queries on statistics

1.The relationship among the mean, median, mode in symmetric distribution is... In mean, median, mode and standard deviation which measures of central tendency are not affected by extremely low or extremely high values. In a simple linear regression problem, r and b1 (have opposite signs/must have same signs/must have oppos

Quantitative Methods for Maximizing Profit

Lowe's manufactures glass doors, windows, patio doors, and wood doors Each of these uses 5 square feet, 1 sq.. Ft, 9 sq ft, and 12 sq ft of wood respectively Each uses 2, 3, 4, and 1 sq ft respectively of glass Each takes 3, 2, 5, and 10 man-hours respectively to build Each week there are 1500 sq ft of wood, 1000 sq ft of g

Quantitative Methods

The following linear programming model formulation is used for the production of four different products, with two different manufacturing processes and two different material requirements. maximize Z = $50 X1 + 58 X2 + 46 X3 + 62 X4 subject to ***NOTICE- The x's have no. behind them that are lowered right cased numbers.