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Quantative Analysis of Data

Descriptive Statistics

ALL VARIABLE NAMES ARE REFERENCES TO THE VARIABLES OF THE DATA. SELECT THE SAMPLES FROM THE POPULATION. ( Population of 1 through 74, which is in the EXCEL FILE attachment.) (1) Using the size of the group as the sample size, select 10 different random samples of the same size. To do this, number each person in the populatio


Find the mean of the set of numbers 63,65,67,68,69,70,71,72,74,75

Help with interpreting the results is given.

Shortly after their graduation, John and Mary bought two used vehicles. To satisfy their curiousity, they started to record their kilometrage each time they filled their gas tanks. After ten weeks, their records show the following numbers of kilometres per litre. Mary: 17, 19, 16, 15, 18, 18, 20, 22, 15, 15 Mean= 17.5 Stan

Test value

A liberal arts college has a mean grade point average of 2.45 with a standard deviation of .69. The dean of the psychology department believes that his students have a higher grade point average than the mean of the college. Find the test value. a. 2.502 b. 1.296 c. 1.968 d. 3.194

E-value(expectation) and standard deviation of a distribution

Billy is collecting bottle caps from his favorite brand of soda pop. The company that produces it runs a contest: each bottle cap shows a picture of one of the 50 states of the United States, with each state equally likely. If you collect all 50 states, then you win a cash prize. 1. Find the e-value of your distribution of th

Quantitative Analysis and Game Theory

Quantitative Analysis (Show All Work) #1 Solve the following Game: Y1 Y2 X1 -5 -10 X2 12 8 X3 4 12 X4 -40 -5 #2 For the following two-person, zero-sum game, are t

Analyze data set for statistically significant change.

The specific questions I need help with are part of statistics homework. My progress so far is in an excel spreadsheet. The source data is labeled "case data", and the different responses are in different worksheets. Here are the questions: Produce a histogram for each data set. (DONE) Compute descriptive statistics (

Measure of central tendency

Here is Appendix N. I need to calculate the three measure of central tendency. Also, develop a five and seven class frequency distribution table for the data. Please show steps so that I can follow it to compare my solution.


1) A test has the following properties: mean = 100, S.D. = 15, and r = .74. An individual has obtained a score of 85 on this test. Compute his or her SEM (standard error of measurement) and determine the scores that would be needed to develop a 95% confidence interval for this specific individual. 2) For the data listed be


MULTIPLE CHOICE QUESTIONS In the following multiple choice questions, circle the correct answer. 1. A numerical value used as a summary measure for a sample, such as sample mean, is known as a a. population parameter b. sample parameter c. sample statistic d. population mean e. None of the above answers is cor

Statistics help: Random Sample

A random sample of 15 women yielded a mean pulse rate of 74.5 beats/minute with a standard deviation of 9.6. A random sample of 12 men yielded a mean pulse rate of 76.0 beats/minute with a standard deviation of 8.7. Test the claim that pulse rates for men and women are the same. Use V = 0.01. Use the traditional methods f


A. What is the implied population? b. What is the sample? 2. Draw a bar chart/graph for the following data 3. Find the mean, median, mode and standard deviation of the data from problem 2. 4. Find the probabilities for the random variable x 5. Find the mean, mode and standard deviation for the data in proble

Chebyshev's theorem - standard deviation

A scientific calculator operates on the average 5.3 hour before needing a recharge. According to Chebyshev's theorem, if the operating times have a standard deviation of 0.6 hour. A. Between what 2 values will at least 75% of the operating times fall? B. At least what percentage of the operating times will fall in the interval

Determining probability using mean and standard deviation.

A food processing company packages a product that is periodically inspected by the Food and Drug Administration. The FDA has ruled that the company's product may have no more than 2.00 grams of a certain toxic substance in it. Past records of the company show that packages of this product have a mean weight of toxic substance eq

Find the mean and standard deviation of X:

The random variable X is the number of houses per month sold by a realtor. The probability distribution is given below. Find the mean and standard deviation of X: X (houses sold) / f(x) ____________________________________________ (0 , 0.24) (1 , 0.01) (2 , 0.12) (3